@brankopetric00 Branko

A recent AWS outage was caused by a DNS problem that hit the AWS DynamoDB endpoint, making it unavailable for services to access. The issue was fixed in about [--] hours, but then another issue arose with EC2, the system that creates virtual servers. This incident highlights the importance of having a robust disaster recovery plan and being prepared for such outages.

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Social Influence

Social category influence technology brands #7333 finance stocks social networks countries products cryptocurrencies celebrities automotive brands

Social topic influence build, lambda #132, data #553, deploy, fine, ai, cloud, servers #37, azure, environment

Top accounts mentioned or mentioned by @opentweetio @navneet_rabdiya @wildpinesai @grok @devi__devs @prmptvault @hryz3 @seldon213dz @leapofcode @tamecalm @ashokumar89 @bryistheguy @summerinnp @mischavdburg @duck4i @openai @cordasfilip @kelvinjay1 @realbirdman85 @echamudi

Top assets mentioned Alphabet Inc Class A (GOOGL) Microsoft Corp. (MSFT) New Relic, Inc. (NEWR) FilesCoins Power Cu (FILECOIN)

Top Social Posts

Top posts by engagements in the last [--] hours

"🚀 Introducing KubeWhisper 💡 Use natural language to generate kubectl commandsno more Googling or syntax errors 🔥 Upcoming Features: k8s context-awareness debugging web platform 👉 Join the waitlist for early access #Kubernetes #DevOps #AI #kubectl https://brankopetric.com/kubewhisper https://brankopetric.com/kubewhisper"
X Link 2024-10-22T01:20Z [----] followers, [----] engagements

"@philkellr Depends on the client and the project scope but cost estimation can be a task in itself (e.g. cost estimation for cloud infrastructure)"
X Link 2024-10-22T12:02Z [--] followers, [--] engagements

"@X_Suraj08 AWS S3 with CloudFront"
X Link 2024-10-26T15:22Z [----] followers, [--] engagements

"I passed AWS AI Practitioner certification. These are the free courses I took on AWS Skill Builder: 💡 Fundamentals of Machine Learning and Artificial Intelligence 💡 Developing Machine Learning Solutions 💡 Exploring Artificial Intelligence Use Cases and Applications #aws #ai"
X Link 2024-10-26T20:25Z [----] followers, [---] engagements

"Always create AWS Budget Alerts - Get alerts on actual & forecasted spending - Set threshold % to trigger notifications - Customize actions when alerts go off This simple step can save you big on unexpected costs #aws #devops #cloudcosts"
X Link 2024-10-29T11:04Z [----] followers, [---] engagements

"💡 Tips for deploying AWS Lambda. AWS Lambda limits deployment package files to max [--] MB zipped or [---] MB unzipped. Tip 1: Deploy AWS Lambda docker image (up to [--] GB uncompressed including all layers) Tip 2: Deploy AWS Lambda layers Tip 3: Deploy AWS Lambda and mount packages from NFS. #aws #devops #serverless"
X Link 2024-11-01T20:29Z [---] followers, [---] engagements

"@DigitalColmer What was your prep journey Any course recommendations"
X Link 2024-11-23T18:42Z [---] followers, [--] engagements

"Learn #Terraform by doing this: [--]. Configure Terraform Remote State on AWS S3 and DynamoDB [--]. Deploy EC2 instance on AWS [--]. Deploy EC2 instance with Terraform modules [--]. Deploy EC2 instance with your own modules [--]. Deploy EC2 instance to multiple environments using one Terraform configuration (use workspaces) [--]. Deploy EC2 instance with Terraform from the pipeline [--]. Use count and ternary operators to control instance creation [--]. Configure pre-deployment approval for Terraform apply stage Feel free to ask if you have any questions I'd be glad to help. :)"
X Link 2024-11-25T07:45Z [----] followers, 31.2K engagements

"Here is why AWS Vercel and a success story with one of my recent clients. Vercel's hobby plan is for non-commercial my client was already making money so he was forced into Pro plan. Pro plan was $20 per user he was in a team with [--] more developers meaning $60 just because of the team size (they were planning to hire one more developer). They were paying extra for 10M+ serverless requests. And while Vercel is great for quick setups its less flexible for scaling resource-intensive apps. So we made a migration plan and started moving to AWS. Here's what we did: 👇 We used AWS Lambda for backend"
X Link 2024-11-25T14:33Z [----] followers, [----] engagements

"@sudoferraz @bzagrodzki @creem_io Is it supported in Serbia :)"
X Link 2024-11-26T13:19Z [---] followers, [--] engagements

"#DevOps tip for beginners: #Jenkins is getting old and not that much used switch to GitHub Actions instead"
X Link 2024-11-27T12:39Z [---] followers, 15.7K engagements

"#DevOps beginner roadmap: 1) Linux 2) Networking 3) Python / Bash 4) CI/CD (Github Actions) 5) Cloud (#AWS 🫶) 6) Infrastructure as Code (Terraform) 7) Monitoring (Grafana Prometheus) Learning this will help you to land junior position"
X Link 2024-11-28T17:23Z [----] followers, 79K engagements

"@jonathan_wilke Its a perfect chance to migrate to AWS. 😃"
X Link 2024-11-28T18:14Z [---] followers, [---] engagements

"#DevOps trending tools in 2024: 1) Docker 2) Kubernetes 3) Helm 4) AWS 5) GitHub Actions 6) Terraform 7) ArgoCD 8) Terragrunt Learning these will help you to keep up with the trends"
X Link 2024-11-30T06:39Z [----] followers, 33.1K engagements

"Practice #DevOps with this simple project: [--]. Find a simple three tier application (Frontend Backend Database) [--]. Create Docker containers for all three components [--]. Create simple server (EC2 is free) and install Docker & nginx [--]. Create docker-compose to deploy all components at once [--]. Configure ports and expose containers locally [--]. Configure nginx to expose the frontend container Advanced: [--]. Automate deployment with GitHub Actions [--]. Secure ports on EC2 instance [--]. Configure custom domain and create SSL with certbot Doing this will cover basics of: #Docker #AWS #CICD and #nginx Feel"
X Link 2024-11-30T18:03Z [----] followers, 140.9K engagements

"#DevOps beginner project to practice Kubernetes: 1) Create minikube cluster 2) Find three tier application (frontend backend database) 3) Create Docker images for all three tiers 4) Create deployment and service for FE and BE 5) Configure persistent volume for database to keep data when pod restarts 6) Use ConfigMap to configure environment variables for FE and BE 7) Play with deployment (replicas) scalling Advanced: 1) Do the same with cloud kubernetes (AWS EKS) 2) Create ingress and expose frontend externally"
X Link 2024-12-01T18:02Z [----] followers, 68.2K engagements

"#DevOps project to prepare for an interview: [--]. Find three tier application (backend frontend database) [--]. Create Dockerfile for each component [--]. Create CI/CD to build and push Docker image to remote registry [--]. Use #Terraform to create AWS EKS [--]. Automate Terraform in CI/CD and add pre-deployment approval to terraform apply [--]. Store Terraform state in a remote place (S3 + DynamoDB) [--]. Create #Helm charts to deploy application to Kubernetes [--]. Automate Helm charts deployment (#GitOps or standard CI/CD) [--]. Set up Grafana and Prometheus in Kubernetes for monitoring Advanced: [--]. Use cloud"
X Link 2024-12-03T08:14Z [----] followers, 27.5K engagements

"#DevOps is constantly evolving learn this tech to keep up with the trends: [--]. #Kubernetes - for scaling capabilities [--]. #ArgoCD - GitOps approach for secure deployments [--]. #Helm - Package manager for Kubernetes manifests [--]. #Terraform - for Infrastructure as Code [--]. #Terragrunt - easier multiple environment management for Terraform [--]. #Pulumi - another Infrastructure as Code (in programming language) [--]. #GitHub Actions - most popular CI/CD solution [--]. #Serverless - AWS Lambda and Fargate for APIs and short living tasks [--]. #OpenTelemetry - for open source Cloud observability AWS #SageMaker and"
X Link 2024-12-03T21:54Z [----] followers, 13.6K engagements

"Simple #DevOps project to practice trending #Serverless: [--]. Create a simple REST API using AWS API Gateway and AWS Lambda [--]. Write the Lambda function in Python to handle HTTP requests [--]. Connect the API Gateway to the Lambda function [--]. Deploy the setup using Infrastructure as Code (#Terraform or #Pulumi) [--]. Set up logging with AWS CloudWatch for monitoring [--]. Configure a CI/CD pipeline to deploy Lambda updates automatically Bonus: [--]. Deploy the setup using Infrastructure as Code (#Terraform or #Pulumi) [--]. Configure custom domain on AWS API Gateway [--]. Play with API Gateway rate limits"
X Link 2024-12-05T17:00Z [----] followers, 19.2K engagements

"@mischa_vdburg Biggest Azure learning mistake is learning Azure. 😀"
X Link 2024-12-16T01:20Z [----] followers, [---] engagements

"@Matloobmehrab I am using AWS Cognito for two of my projects. Seems straightforward for me. What's the issue you're having"
X Link 2024-12-19T17:08Z [----] followers, [--] engagements

"@duck4i It's a combination of Claude and OpenAI. It's mostly Claude for technical aspects. :)"
X Link 2024-12-24T12:18Z [----] followers, [--] engagements

"If you're DevOps Engineer join a growing DevOps community where we discuss topics like: 1) AWS 2) Terraform 3) CI/CD 4) Docker 5) Kubernetes 6) Ansible 7) Monitoring https://x.com/i/communities/1864451536706785787 https://x.com/i/communities/1864451536706785787"
X Link 2024-12-25T10:06Z [----] followers, [---] engagements

"Best way to learn Kubernetes components is to deploy Kubernetes cluster manually. Tutorial link is in comments"
X Link 2025-01-13T12:08Z [----] followers, 18.7K engagements

"https://www.youtube.com/watchv=k3iexxiYPI8 https://www.youtube.com/watchv=k3iexxiYPI8"
X Link 2025-01-13T12:08Z [----] followers, [----] engagements

"@duck4i Id buy something if I get a video of a person mentioning my name and telling me why I need it. 😂"
X Link 2025-01-15T14:43Z [----] followers, [--] engagements

"🔐 Linux File Permissions Made Easy Linux uses numbers to control file access: [--] = Read (r) [--] = Write (w) [--] = Execute (x) Permissions are set for: User Group Others. Example: chmod [---] [--] = [--] + [--] + [--] (User: Read Write Execute) [--] = [--] + [--] (Group: Read Execute) [--] = [--] + [--] (Others: Read Execute) 🧵 Check below for more example to practice: 👇"
X Link 2025-01-15T15:04Z [----] followers, 16K engagements

"Basic AWS services for beginners: 1) AWS IAM: Permissions management 2) AWS S3: Storage 3) AWS EC2: Servers 4) AWS RDS: SQL Database 5) AWS DynamoDB: NoSQL Database 6) AWS Lambda: Serverless 7) AWS CloudFront: CDN 8) AWS VPC: Virtual Private Cloud for network isolation 9) AWS Subnets: Network segregation 10) AWS Route53: DNS management 11) AWS SQS: Message queues 12) AWS SNS: Message topics Learning these services will help you understand AWS basics and get started with deploying applications"
X Link 2025-01-19T14:09Z [----] followers, 55K engagements

"Better and cheaper way to deploy website to AWS. Don't deploy to EC2 you'll pay for resources you're not using and you'll have to manage EC2 instance instead: [--]. Create S3 bucket [--]. Create AWS CloudFront for CDN [--]. Deploy your website files to S3 bucket [--]. Configure CloudFront origin to point to S3 bucket [--]. Configure S3 bucket policies to allow access from CloudFront [--]. Optional: Configure custom domain on CloudFront for your website. If you need assistance with S3 bucket policy or deployment process reach out in the comments and I'll help"
X Link 2025-01-19T15:25Z [----] followers, [----] engagements

"Preparing for the DevOps interview Try to answer these three questions: 1) Linux File Permissions: Which permissions will be applied to a file with this command: chmod [---] file.txt 2) Terraform: How would you manage multiple Cloud environments with one Terraform configuration 3) AWS: What is the difference between AWS IAM Role and IAM Policy"
X Link 2025-01-22T11:34Z [----] followers, 13.7K engagements

"@sairampangulur1 Nice one. 👌"
X Link 2025-01-25T15:37Z [----] followers, [--] engagements

"I recently passed the AWS AI certification and this is a list of must-know AWS AI services: 1) Amazon Bedrock - access the high-performing foundation models via API 2) Amazon Transcribe - speech to text 3) Amazon Polly - text to speech 4) Amazon Textrack - extract text from docs & images 5) Amazon Rekognition - extract info from images & 6) Amazon Lex - integrate chatbot into your app 7) Amazon Translate - language translation 8) Amazon Personalize - recommendations based on user data 9) Amazon Kendra - search across different content 10) Amazon Q - GenAI assistant AI in DevOps is the future."
X Link 2025-02-04T00:30Z [----] followers, 11.7K engagements

"@duffysecops With OIDC and trust relationships. Here is AWS docs: https://aws.amazon.com/blogs/security/use-iam-roles-to-connect-github-actions-to-actions-in-aws/ https://aws.amazon.com/blogs/security/use-iam-roles-to-connect-github-actions-to-actions-in-aws/"
X Link 2025-02-07T08:44Z [----] followers, [---] engagements

"Check out Groq if you want fast AI responses with reasonable API prices"
X Link 2025-02-10T17:39Z [----] followers, [---] engagements

"AWS Networking Fundamentals: What Every DevOps Engineer Should Know [--] VPC (Virtual Private Cloud) The foundation of AWS networking allowing you to isolate resources in a secure environment. [--] Subnets Divide your VPC into public (internet-facing) private (internal) and isolated subnets for better security and architecture. [--] Route Tables Control how traffic flows within your VPC and to external networks. [--] Internet Gateway & NAT Gateway: Internet Gateway: Enables internet access for public subnets. NAT Gateway: Allows private subnets to access the internet without being exposed. [--] Security"
X Link 2025-02-21T21:48Z [----] followers, 12.6K engagements

"DevOps Project for Beginners: Monitor a Kubernetes Cluster with Prometheus & Grafana 1) Set Up an AWS EKS Cluster Create an EKS cluster using Terraform or eksctl. Deploy worker nodes and configure kubectl access. 2) Install Prometheus for Metrics Collection Deploy Prometheus using Helm. Configure Prometheus to scrape metrics from Kubernetes components. 3) Set Up Grafana for Visualization Deploy Grafana in the cluster. Connect it to Prometheus as a data source. 4) Create Dashboards & Alerts Build dashboards to monitor CPU memory and pod health. Set up alerts for high resource usage or failing"
X Link 2025-02-23T19:28Z [----] followers, [----] engagements

"AWS IAM Best Practices 1) Follow the Principle of Least Privilege - Grant users and services only the permissions they need. 2) Use IAM Roles Instead of Long-Term Credentials - Avoid storing access keys; use IAM roles for applications running on AWS. 3) Enable Multi-Factor Authentication (MFA) - Require MFA for all users especially those with admin privileges. 4) Rotate Access Keys Regularly - If you must use access keys rotate them frequently. 5) Use IAM Policies Effectively - Prefer managed policies over inline policies for consistency and reusability. 6) Enforce Strong Password Policies -"
X Link 2025-02-25T20:12Z [----] followers, [----] engagements

"DevOps tool of the week: Terraform. [--] people voted for Terraform. In the following days expect posts about the most popular IaC tool"
X Link 2025-02-26T20:55Z [----] followers, [----] engagements

"Terraform Basics: Everything You Need to Know Terraform is one of the most widely used Infrastructure as Code (IaC) tools. It allows you to define provision and manage infrastructure using declarative configuration files. 1) Core Concepts Providers - Plugins that allow Terraform to interact with cloud platforms (e.g. AWS Azure Kubernetes). Resources - The infrastructure components you define (e.g. EC2 instances S3 buckets). Modules - Reusable sets of Terraform configurations to keep projects organized. State - A file that tracks the current infrastructure state and changes applied by"
X Link 2025-02-27T11:07Z [----] followers, [----] engagements

"Terraform: Free Learning Resources 1) Official Terraform Tutorials 2) freeCodeCamps Terraform Guide 3) Spacelift's Step-by-Step Tutorial 4) K21 Academy's Beginner's Guide 5) Udemy Free Terraform Course 6) YouTube Crash Course https://www.youtube.com/watchv=bEXfPzoB4RE https://www.udemy.com/course/terraform-101/ https://k21academy.com/terraform-iac/terraform-beginners-guide/utm_source=chatgpt.com https://spacelift.io/blog/terraform-tutorialutm_source=chatgpt.com https://www.freecodecamp.org/news/tag/terraform/utm_source=chatgpt.com"
X Link 2025-02-28T14:14Z [----] followers, [----] engagements

"Step by step practical project to practice Terraform: Deploy an EC2 Instance with VPC Subnet and Security Group [--]. Set Up AWS Credentials Create an IAM user with programmatic access. Assign IAM policies needed for VPC EC2 and security group management. Configure AWS CLI (aws configure) or use environment variables. [--]. Initialize a Terraform Project Install Terraform and create a new working directory. Run terraform init to initialize the project. [--]. Define the VPC Create a VPC with a CIDR block (e.g. 10.0.0.0/16). Define an internet gateway and attach it to the VPC. [--]. Set Up a Public Subnet"
X Link 2025-03-01T14:51Z [----] followers, [----] engagements

"Kubernetes Free Learning Resources: 1) InfraCloud - Free Kubernetes Courses for beginners 2) Kubernetes Roadmap 3) KodeKloud Kubernetes Crash Course 4) Tech World With Nana 5) [--] best Kubernetes courses by Class Central 6) DevOps Directive Kubernetes Course These free resources will help you prepare for the Kubernetes journey and help you understand the concepts. https://www.youtube.com/watchv=2T86xAtR6Fo https://www.classcentral.com/report/best-kubernetes-courses/ https://www.youtube.com/watchv=s_o8dwzRlu4 https://www.youtube.com/watchv=XuSQU5Grv1g"
X Link 2025-03-04T08:59Z [----] followers, 11.3K engagements

"AWS: Core Concepts & Fundamentals Amazon Web Services (AWS) offers a comprehensive suite of cloud services that empower organizations to innovate and scale efficiently. Understanding the foundational concepts of AWS is essential for leveraging its full potential. Authentication Identity and Access Management (IAM): Manages access to AWS services and resources securely enabling fine-grained permissions and multi-factor authentication. Compute Elastic Compute Cloud (EC2): Provides scalable virtual servers to run applications offering flexibility in instance types and pricing models. Lambda:"
X Link 2025-03-10T19:17Z [----] followers, [----] engagements

"Terraform & Terragrunt in practice Imagine your team is managing cloud infrastructure across multiple environments: dev staging and production. Without Terragrunt you would need to duplicate Terraform code for each environment making updates painful and error-prone. Scenario: Deploying an AWS EKS Cluster Your company runs Kubernetes workloads on Amazon EKS and needs a scalable repeatable way to deploy infrastructure across environments. Without Terragrunt (Terraform Only) 1) You define an eks-cluster Terraform file with configuration. 2) You create separate folders for dev staging and prod"
X Link 2025-03-18T21:14Z [----] followers, [----] engagements

"Prometheus & Grafana: Practical Project Project: Full-Stack Monitoring & Alerting System You'll be setting up a real-world monitoring stack by collecting system & application metrics visualizing data in Grafana and configuring alerts for critical events. Step 1: Set Up Prometheus - Install Prometheus and configure it to scrape system and application metrics. - Use the Node Exporter to collect CPU memory disk and network usage data. - Scrape custom application metrics using Prometheus HTTP endpoints (use Python Go or any app). Step 2: Deploy Grafana for Visualization - Install Grafana and"
X Link 2025-03-20T16:18Z [----] followers, [----] engagements

"Simple DevOps project to practice Terraform This project challenges you to provision AWS infrastructure using Terraform while emphasizing modularity remote state management and automation. 1) Create an S3 bucket and DynamoDB table to serve as the remote backend for Terraform state management 2) Set up dedicated AWS IAM credentials with least-privilege permissions specifically for Terraform 3) Develop Terraform configurations to deploy basic AWS infrastructure (VPC subnets and an EC2 instance) 4) Organize your Terraform code into modules by separating network compute and storage resources 4)"
X Link 2025-03-28T22:56Z [----] followers, 13.9K engagements

"I built @prmptvault to help you keep your AI prompts organized and accessible. PrmptVault is now integrated with @make_hq here are some cool scenarios you can build: [--]. Automate social media posting with parametrized AI prompts [--]. Real-Time Prompt Sharing in Slack or Discord [--]. Multi-Platform AI Content Repurposing [--]. E-commerce Product Description Generator Drop me a comment or DM if you'd like to try PrmptVault"
X Link 2025-03-29T10:50Z [----] followers, [---] engagements

"Want to practice and sharpen your AWS skills Check out the project below: Project: Build and Deploy a Serverless API with AWS Lambda and API Gateway Steps: [--]. Set Up IAM Roles and Policies: - Create an IAM role granting AWS Lambda necessary permissions to interact with other AWS services securely. [--]. Develop the Lambda Function: - Write your Lambda function code in your preferred runtime (e.g. Python Node.js) to process incoming requests. - Ensure the function handles various HTTP methods and integrates seamlessly with API Gateway. [--]. Package and Deploy the Lambda Function: - Package your"
X Link 2025-04-07T15:15Z [----] followers, [----] engagements

"I built @prmptvault to keep your AI prompts organized and accessible from anywhere. PrmptVault features: - Parametrized prompts - Easy access to popular AI tools - API access for your applications Drop me a DM or register at: for FREE http://prmptvault.com http://prmptvault.com"
X Link 2025-04-07T15:36Z [----] followers, [---] engagements

"We're at 1k members in DevOps Community 🎉 Join us if you're interested in: [--]. Cloud (AWS Azure GCP) [--]. IaC (Terraform Ansible) [--]. CI/CD pipelines [--]. Docker [--]. Kubernetes . and much more https://x.com/i/communities/1864451536706785787 https://x.com/i/communities/1864451536706785787"
X Link 2025-04-08T11:38Z [----] followers, [----] engagements

"DevOps project for beginners: Deploy Java application with Docker and Nginx to AWS EC2 Below is a detailed step-by-step guide to assist you through the process: [--]. Set Up an AWS Account: - If you dont have an AWS account create one to access AWS services. [--]. Launch an EC2 Instance: - Log in to the AWS Management Console. - Navigate to the EC2 dashboard and click Launch Instance. - Choose an Amazon Machine Image (AMI) such as Ubuntu Server [-----] LTS. - Select an instance type (e.g. t2.micro which is eligible for the free tier). - Configure instance details add storage and set up security"
X Link 2025-04-09T18:31Z [----] followers, 10.5K engagements

"AWS ECS Core Concepts and Fundamentals Thinking of running containers at scale on AWS Heres a breakdown of the essential concepts behind Amazon Elastic Container Service (ECS): [--]. Cluster A logical grouping of ECS resources where your containerized applications run. [--]. Task Definition A blueprint that describes how to run your containerswhat image to use how much CPU/memory networking and more. [--]. Task A running instance of a Task Definitionthis is where your container(s) live and execute. [--]. Service Ensures that a specified number of tasks are always running and handles rolling updates"
X Link 2025-04-13T21:14Z [----] followers, [----] engagements

"DevOps Project for Your CV: Deploy Java App (Docker) to AWS ECS with GitHub Actions Here's the step-by-step plan to build and deploy your project 👇 [--]. Create a simple Java application Build a basic Java app (Spring Boot or similar) with a REST endpoint. [--]. Dockerize your Java app Create a Dockerfile to containerize the app. [--]. Create an Amazon ECR Repository Host your Docker image in Amazons Elastic Container Registry. [--]. Set Up GitHub Actions Workflow Create .github/workflows/deploy.yml to automate image build & push. [--]. Configure GitHub Secrets Add these secrets in your GitHub repo: -"
X Link 2025-04-14T15:56Z [----] followers, 14.3K engagements

"Hey guys Are you struggling with finding your AI prompts searching across ChatGPT Notes Google Docs I built a @prmptvault to help you keep everything in one place and it's free to use. With a simple click of a button you get your prompt in your AI tool. Currently supported: - ChatGPT - Claude - Perplexity - Bard Check the comments to see additional features"
X Link 2025-04-15T08:30Z [----] followers, [---] engagements

"AWS ECS Free Learning Resources [--]. AWS ECS Official Documentation Start with the source. Learn core concepts task definitions services and Fargate. [--]. AWS Workshop: Deploying Containers with ECS Hands-on ECS workshop using Fargate ALB and ECR. [--]. FreeCodeCamp ECS Crash Course (YouTube) Great walkthrough of ECS with ECR and Docker. [--]. AWS Container Day ECS Deep Dive (YouTube) Recorded sessions from AWS experts diving into ECS best practices. [--]. Devto: ECS with Fargate Guide Step-by-step blog to deploy containers using ECS + Fargate. [--]. GitHub: ECS Examples Repo Sample task definitions Docker"
X Link 2025-04-15T12:39Z [----] followers, 11K engagements

"AI/ML AWS Services Core Concepts: [--]. Amazon SageMaker Fully managed service to build train and deploy machine learning models at scale. [--]. Amazon Bedrock Enables you to build and scale generative AI apps using foundation models from top providers (Anthropic Meta Stability AI) via an API no infrastructure to manage. [--]. Amazon Comprehend Natural Language Processing (NLP) to analyze text for sentiment key phrases entities and more. [--]. Amazon Rekognition Detects objects people text and activities in images and videos; supports facial analysis and moderation. [--]. Amazon Polly Converts text into"
X Link 2025-04-22T19:44Z [----] followers, [----] engagements

"5 FREE AWS Resources to learn AI/ML I used these to prepare for AI Practitioner certification. [--]. Fundamentals of ML and AI [--]. Developing ML Solutions [--]. Exam Prep: Certified AI Practitioner [--]. Amazon SageMaker [--]. freeCodeCamp: AWS AI Practitioner course https://youtu.be/WZeZZ8_W-M4si=pM2d44HdhZA5jZhC https://explore.skillbuilder.aws/learn/course/internal/view/elearning/22175/amazon-sagemaker-getting-started https://explore.skillbuilder.aws/learn/course/internal/view/elearning/19554/exam-prep-standard-course-aws-certified-ai-practitioner-aif-c01"
X Link 2025-04-24T11:31Z [----] followers, 16.4K engagements

"Prompt Engineering tips to get better AI outputs: [--]. Construct prompts with a role for a model Instead of saying: I need your help with task. Say: Imagine you are an expert DevOps Engineer you are tasked with task. [--]. Give the model context for your problem Instead of saying: Explain Kubernetes. Say: Im a junior developer starting to learn Kubernetes. Can you explain it in simple terms with real-world examples [--]. Specify the format you want the response in Instead of saying: Summarize this topic. Say: Summarize this topic in a bullet-point list with key takeaways. [--]. Set clear expectations"
X Link 2025-04-26T10:01Z [----] followers, [---] engagements

"New Terraform Update: Native S3 State Locking Terraform v1.10+ introduces native state locking for the S3 backend. Heres how to simplify your setup: [--]. Upgrade to Terraform v1.10+ Ensure youre using Terraform version [----] or later to access this feature. [--]. Enable S3 Native Locking In your backend configuration add use_lockfile = true to enable native S3 locking. [--]. Simplify Your Architecture No need to manage a DynamoDB table for state locking anymore reducing complexity and cost. [--]. Update IAM Permissions Ensure your IAM roles have permissions for s3:PutObject s3:GetObject and"
X Link 2025-04-29T20:20Z [----] followers, [----] engagements

"1500 members are already part of our DevOps Community. We share practical projects free learning resources and core concepts for commonly used DevOps technologies: 1) Cloud (AWS Azure GCP) 2) CI/CD 3) Terraform 4) Ansible 5) Linux 6) Kubernetes 7) Docker 8) Monitoring 9) MLOps Joins us below. 👇 https://x.com/i/communities/1864451536706785787 https://x.com/i/communities/1864451536706785787"
X Link 2025-05-01T19:11Z [----] followers, [----] engagements

"Are you using Grok How does it compares to ChatGPT"
X Link 2025-05-02T19:54Z [----] followers, [---] engagements

"@cryptoapew3 There are courses available online. Even better copy this post into ChatGPT and ask it to create a guide for you. :)"
X Link 2025-05-04T22:34Z [----] followers, [---] engagements

"Learn cloud provider before jumping to Terraform. You need to understand infrastructure before automating"
X Link 2025-05-11T13:09Z [----] followers, [----] engagements

"@ProductHunt Working on a @prmptvault - centralized hub for AI prompts management. Btw PH launch went great - [---] upvotes :)"
X Link 2025-05-19T11:05Z [----] followers, [--] engagements

"DevOps Serverless Project for beginners: Project: Build a Simple Notes system using AWS Lambda + DynamoDB [--]. Create a DynamoDB Table Set up a table named Notes with noteId as the partition key. [--]. Write Lambda Functions Create Lambda function for basic CRUD: - createNote - getNote - updateNote - deleteNote [--]. Create REST API with API Gateway Use Amazon API Gateway to create a REST API and integrate each endpoint with the Lambda function. [--]. Add IAM Roles & Permissions Assign IAM roles to Lambda with only the necessary permissions to interact with DynamoDB. [--]. Test the API Use tools like"
X Link 2025-05-25T17:28Z [----] followers, [----] engagements

"Linux for Beginners - Start here if youre getting into DevOps [--]. Basic Shell Navigation Learn ls cd pwd mkdir rm touch. Youll use them daily in scripts and terminals. [--]. File Permissions & Ownership Understand chmod chown umask. [--]. Package Managers Use apt yum or dnf to install tools on Linux servers. [--]. System Services Control services with systemctl. Knowing how to start/stop/restart daemons is essential for debugging. [--]. User & Group Management Know adduser usermod groups. Youll need this when configuring deployments. [--]. Networking Basics Use curl ping netstat ss ip. Youll often need to"
X Link 2025-06-01T20:36Z [----] followers, 16.6K engagements

"DevOps project for beginners: Terraform & AWS Serverless Resources: AWS IAM - for Terraform access AWS Lambda - serverless function AWS S3 - simple storage API Gateway - expose AWS Lambda HTTP endpoint Steps: - Configure AWS Terraform provider with AWS IAM role - Deploy AWS Lambda function with zipped code - Create IAM role with lambda trust policy and execution permissions - Add CloudWatch logs for Lambda monitoring - Deploy AWS S3 bucket and allow Lambda to put files - Ensure S3 bucket is blocking public access - Provision API Gateway with IP rate limits - Ensure API Gateway can invoke"
X Link 2025-09-30T07:48Z [----] followers, [---] engagements

"Tip to speed up your npm Docker builds Copy package.json BEFORE copying code. Docker only reruns npm install when dependencies change not on every code change. Before: 57s build time After: 6s build time"
X Link 2025-09-30T09:08Z [----] followers, [---] engagements

"Terraform Fundamentals: Providers: Define which cloud or service Terraform will manage (e.g. AWS Azure GCP) Resources: The core building Terraform blocks that represent infrastructure components like EC2 S3 or VPC Variables: Input values that make Terraform configurations reusable and dynamic Outputs: Export useful information after deployment like instance IPs or DNS names State file: Tracks the resources deployed to the Cloud providers Backend: Defines where the state file is stored (local S3) Modules: Reusable groups of Terraform configurations for better structure and scalability Data"
X Link 2025-10-06T11:25Z [----] followers, [----] engagements

"I've been playing back and forth with new @OpenAI AgentKit. I see two problems with it: [--]. No custom workflow triggers (most likely will be integrated only within ChatGPT) [--]. Weak data processing capabilities It's promising but it's nowhere near what tools like n8n Zapier or Make can do yet"
X Link 2025-10-07T13:29Z [----] followers, [---] engagements

"Simple guide to understand Serverless on AWS: 1) No servers to manage - you write code AWS runs it 2) Pay only when code executes (per request not per hour) 3) Lambda - your code that runs when triggered 4) API Gateway - receives HTTP requests and triggers Lambda 5) DynamoDB - NoSQL database that stores JSON data 6) Auto-scales from [--] to millions of requests automatically Simple newsletter serverless system project: 1) Create Lambda function to handle email submissions 2) Set up API Gateway POST endpoint to trigger Lambda 3) Create DynamoDB table to store emails as JSON 4) Write Lambda code"
X Link 2025-10-08T22:03Z [----] followers, [----] engagements

"Learn Linux before Docker Learn Git before GitHub Actions Learn Docker before Kubernetes Learn Cloud (AWS/Azure) before Terraform Learn Kubernetes before Helm Learn CI/CD before GitOps (ArgoCD/FluxCD) Learn networking basics before cloud networking"
X Link 2025-10-11T09:48Z [----] followers, [----] engagements

"AWS charges you extra for running outdated RDS versions: Youre running MySQL [---] or PostgreSQL [--] Check your AWS bill. After end of standard support AWS automatically enrolls your database into Extended Support and starts charging you per vCPU per hour. Real example: - db.r5.large (2 vCPUs) in US East - Year 1-2: $0.100 per vCPU/hour = $0.200/hour extra - Year 3: $0.200 per vCPU/hour = $0.400/hour extra Thats $144/month added cost in Year [--]. Doubles in Year [--]. This is on top of your regular RDS instance costs. Why AWS does this: They provide security patches for unsupported versions. But they"
X Link 2025-10-12T09:32Z [----] followers, [---] engagements

"Set your AWS budget Set your AWS budget Set your AWS budget Set your AWS budget Set your AWS budget"
X Link 2025-10-12T09:41Z [----] followers, [---] engagements

"@CodeToCloudxx Terraform and AWS Lambda that wipes everything. 😄"
X Link 2025-10-12T10:22Z [----] followers, [--] engagements

"AWS EC2: On-Demand vs Spot vs Reserved Instances You're paying 3x more than you need to for compute. Here's the difference: On-Demand Instances: - Pay fixed hourly rate - Available whenever you need them - No commitments or upfront costs - Never get interrupted - Example: $0.096/hour for t3.large Spot Instances: - Pay up to 90% less (same hardware) - Use spare AWS capacity - Can be interrupted with 2-minute warning - Bid on unused capacity - Example: $0.029/hour for t3.large (70% cheaper) Reserved Instances: - Commit for [--] or [--] years - Save up to 72% vs On-Demand - Pay upfront partial or no"
X Link 2025-10-12T15:35Z [----] followers, [----] engagements

"Most common vibe coding security vulnerabilities: SQL Injection - AI forgets parameterized queries concatenates user input directly XSS (86% failure rate) - No input sanitization before displaying data Hardcoded secrets - API keys written directly in code instead of env variables Missing auth - Endpoints created with zero authentication checks Log injection (88% fail) - Unvalidated data written straight to logs No input validation - Most common flaw AI skips it unless you explicitly ask Vibe coding is fine. Shipping without review isn't"
X Link 2025-10-13T16:16Z [----] followers, [---] engagements

"Karpenter + KEDA explained (Kubernetes Scaling): - Your SQS queue has [----] messages. - KEDA sees it scales pods from [--] to [--] - [--] pods need nodes. - Karpenter sees it adds nodes in [--] seconds Result: Your queue gets processed automatically no manual scaling needed. KEDA watches queues. Karpenter provisions nodes. Together = infrastructure that scales with your actual workload"
X Link 2025-10-14T21:36Z [----] followers, [----] engagements

"My app with [---] monthly active users Tech Stack & Costs - EC2 t3.medium backend API server $30.37/month - Route53 DNS management $0.60/month - Lambda serverless functions $0.00 (free tier) - API Gateway $0.52/month - DynamoDB User data storage $0.00 (free tier) Amazon Cognito $0.00 (free tier) Total: $31.50/month Per User: $0.21/month"
X Link 2025-10-16T11:37Z [----] followers, [----] engagements

"REST vs GraphQL vs gRPC: Which API Style REST - Most common easiest to learn - Multiple endpoints for different data - Example: GET /users/123 GET /posts/456 - Use for: Simple APIs public APIs MVPs GraphQL - Request exactly what you need - Single endpoint flexible queries - Example: Query user(id: 123) name email - Use for: Complex data mobile apps dashboards gRPC - Super fast binary protocol - Strongly typed with contracts - Example: Service calls with protobuf - Use for: Microservices high performance needs Quick Comparison Speed: gRPC REST GraphQL Ease: REST GraphQL gRPC Flexibility:"
X Link 2025-10-17T03:39Z [----] followers, [---] engagements

"@CordasFilip @kelvinjay1 @RealBirdman85 Personally I do not like their UI"
X Link 2025-10-18T13:04Z [----] followers, [--] engagements

"🚀 Welcome to Our DevOps Community 🌟 Our community is growing and I want to take a moment to welcome each and every one of you. Thank you for joining us on this journey Whether youre a seasoned professional or just starting out youre in the right place to share knowledge learn and grow together. Here are some of the topics well be diving into: DevOps practices AI in DevOps Infrastructure as Code (Terraform Ansible) CI/CD pipelines AWS & cloud computing GitOps workflows Containerization (Docker Kubernetes) Monitoring and observability And more trending DevOps topics A bit about me: Im a"
X Link 2024-12-29T19:59Z [----] followers, [----] engagements

"Top [--] DevOps Interview Questions I Love Asking: 1) Whats the key difference between a Docker container and a Docker image 2) What are possible ways to expose the application inside Kubernetes cluster to the world 3) Imagine an AWS EC2 instance created via Terraform. You manually remove it from the Terraform state. What happens during the next terraform apply These are great ice-breaker questions and I love how creative people get with their responses. They always spark conversations during interviews What would be your answer to these questions"
X Link 2025-02-04T21:08Z [----] followers, 14.2K engagements

"Practice GitHub Actions with the project below: 1) Create a GitHub Repo 2) Create a GitHub Actions Workflow Inside your repo create the directory .github/workflows/. Add a new file: .github/workflows/docker-ci.yml. 3) Define Workflow Triggers Trigger the workflow on push to main branch. Allow manual triggers using workflow_dispatch. 4) Checkout the Repo Use the actions/checkout@v4 action to fetch your latest code. 5) Set Up Docker Build Environment Use ubuntu-latest as the runner. Install dependencies like Docker 6) Log in to Docker Hub Use docker/login-action with DOCKER_USERNAME and"
X Link 2025-02-11T21:23Z [----] followers, [----] engagements

"Run Terraform in GitHub Actions: 1) Create GitHub repository for Terraform code 2) Create credentials in your cloud provider 3) Store credentials in GutHub secrets 4) Install terraform in GitHub actions 5) Run terraform: init validate and plan 6) Add --out flag to terraform plan to store the output in the file 7) Add pre-deployment approval for terraform apply stage 8) Manually review the plan output 9) Add terraform apply stage with approval condition Run CI/CD and your infrastructure provisioning is automated. This covers basics of running Terraform in CI/CD"
X Link 2025-02-15T22:32Z [----] followers, 11.5K engagements

"How do you send mass emails Which tools are the best Looking to reach around 10k contacts"
X Link 2025-02-16T19:20Z [----] followers, [----] engagements

"In larger systems I'd suggest having modules in its own repositories and using Terraform workspaces for environments. Ideally migrate to Terraform Cloud/Enterprise for enhanced management. ** Terraform best practices you need to know ** [--]. Code structure code quality and organization Never keep your configuration in a single main .tf. Segregate the files in separate folders per resources environments regions and projects. If your configuration is simple then https://t.co/t8KSuhQnyl ** Terraform best practices you need to know ** [--]. Code structure code quality and organization Never keep your"
X Link 2025-02-17T00:33Z [----] followers, [----] engagements

"🚀 DevOps Project: Deploy Docker Image to AWS EC2 using GitHub Actions [--]. Containerize the Application Create a Dockerfile for a simple web app (e.g. Node.js or Python). Ensure the app exposes a port (e.g. 3000) for web access. [--]. Launch EC2 Instance on AWS Create an EC2 instance using Amazon Linux [--]. Install Docker and configure it to start on boot. [--]. Configure GitHub Secrets Store EC2 IP SSH Username and SSH Key as GitHub Secrets. Use Base64 encoding for the private SSH key. [--]. Build and Push Docker Image Build the Docker image locally. Push the image to DockerHub or Amazon ECR. [--]. Set Up"
X Link 2025-02-17T14:37Z [----] followers, 13.4K engagements

"AWS Lambda is all you need to start your business and its free"
X Link 2025-02-17T14:43Z [----] followers, [----] engagements

"DevOps Project for Beginners: Deploying a Frontend on S3 and a Backend on EC2 Participating on this project will provide hands-on experience with AWS services helping you understand how to deploy a static frontend on S3 and a backend on EC2. Backend Setup on AWS EC2 [--]. Launch an EC2 Instance - Sign in to the AWS Management Console. - Navigate to the EC2 dashboard and click on Launch Instance. - Choose an Amazon Machine Image (AMI) such as Ubuntu Server [-----] LTS. - Select an instance type (e.g. t2.micro for free tier eligibility). - Configure instance details add storage and set up security"
X Link 2025-04-12T19:35Z 14.9K followers, 13.4K engagements

"Lead gen with n8n is crazy"
X Link 2025-05-25T10:16Z 13.9K followers, [---] engagements

"🧵 Linux fundamentals to learn before jumping into DevOps tools: - File system navigation & permissions (chmod chown ls cd) - Process management (ps top kill systemctl) - Text processing & scripting (grep awk sed bash) - Networking basics (netstat curl ssh firewall) - Package management (apt yum dnf) - User & group management (useradd usermod sudo) - Disk management & mounting (df du mount lsblk) Below are examples for each one"
X Link 2025-10-02T21:52Z 13.5K followers, 10K engagements

"3/7 Text processing & scripting grep "error" app.log finds error lines cat access.log awk 'print $1' extracts IP addresses"
X Link 2025-10-02T21:52Z 13.7K followers, [---] engagements

"4/7 Networking basics curl https://URL tests API endpoint netstat -tuln shows listening ports ssh user@serverhost to remote machine"
X Link 2025-10-02T21:52Z 13.5K followers, [---] engagements

"DevSecOps scanning tools for CI/CD pipelines: SAST (Static Analysis): [--]. SonarQube - scans code for bugs vulnerabilities and code smells [--]. Semgrep - fast customizable static analysis with simple rules Dependency Scanning: [--]. Snyk - finds vulnerabilities in open-source dependencies [--]. OWASP Dependency-Check - free tool for known vulnerable components Container Security: [--]. Trivy - scans container images for vulnerabilities and misconfigurations [--]. Grype - fast vulnerability scanner for container images and filesystems Secret Detection: [--]. GitGuardian - detects secrets API keys credentials in"
X Link 2025-10-12T14:34Z [----] followers, 15K engagements

"DevOps project for beginners: Terraform + Azure What you'll build: Deploy a complete web application on Azure using Terraform. Part [--] - Infrastructure with Terraform: [--]. Setup (Local machine): - Install Terraform CLI - Install Azure CLI and login: az login - Install kubectl for AKS management - Install Helm [--] for package management [--]. Resource Group & Networking: - Create Resource Group in chosen region (East US West Europe) - Create Virtual Network with CIDR block (10.0.0.0/16) - Create [--] subnets (AKS: 10.0.1.0/24 Services: 10.0.2.0/24) - Configure Network Security Group (NSG) - Allow HTTPS"
X Link 2025-10-13T07:10Z [----] followers, 12.3K engagements

"DevOps project for beginners: Azure DevOps + AKS Build a complete CI/CD pipeline and deploy to Kubernetes. What you'll build: Automated pipeline that builds tests and deploys containerized app to Azure Kubernetes Service. Part [--] - Setup: [--]. Prerequisites: - Azure account with active subscription - Azure CLI installed locally - Docker installed - kubectl installed - Sample application (Node.js/Python/Java) [--]. Azure Resources: - Create Resource Group - Create Azure Container Registry (ACR) - Create AKS cluster (2 nodes Standard tier) - Enable managed identity for AKS [--]. Authentication Setup: -"
X Link 2025-10-14T08:46Z [----] followers, 17.1K engagements

"AWS: ALB vs NLB Application Load Balancer (ALB) - Works at Layer [--] (HTTP/HTTPS) - Routes based on URL path headers hostnames - Perfect for web apps & microservices - SSL termination built-in - Slower but smarter routing Network Load Balancer (NLB) - Works at Layer [--] (TCP/UDP) - Routes based on IP & port only - Ultra-fast millions of requests/sec - Static IP support - Best for extreme performance needs Use ALB When - Running web applications - Need path-based routing (/api /admin) - Host-based routing (app1.com app2.com) - Want AWS WAF integration Use NLB When - Need extreme performance/low"
X Link 2025-10-16T05:17Z [----] followers, [----] engagements

"My Newsletter Setup for FREE on AWS Tech Stack - AWS Lambda (send emails) - DynamoDB (store subscribers) - API Gateway (subscription endpoint) - SES (Simple Email Service) What You Get - Fully serverless newsletter system - No monthly fees (within free tier) - Scales automatically - No server maintenance How It Works - User subscribes via API endpoint - Lambda stores email in DynamoDB - SES sends bulk emails - Pay only for what you use Free Tier Limits - Lambda: 1M requests/month FREE - DynamoDB: 25GB storage FREE - SES: 62K emails/month FREE - API Gateway: 1M requests/month FREE Perfect For"
X Link 2025-10-16T09:28Z [----] followers, [---] engagements

"ArgoCD Fundamentals What is ArgoCD - Kubernetes deployment tool - Continuous delivery for K8s apps - Automatically syncs Git repo to cluster - Open source by Intuit GitOps Approach - Git = single source of truth - All configs stored in Git repos - Declare desired state in YAML - ArgoCD makes cluster match Git - No manual kubectl commands How It Works - Push Kubernetes manifests to Git - ArgoCD monitors the repo - Detects changes automatically - Applies changes to cluster - Keeps everything in sync Key Concepts Application - Represents your app in ArgoCD - Points to Git repo + cluster Sync"
X Link 2025-10-16T09:57Z [----] followers, [----] engagements

"Vibe Coding Will Get You Hacked AI code looks good ships fast full of security holes. Problems: - SQL injection - XSS vulnerabilities - No input validation - Secrets hardcoded - Console logs with sensitive data during debugging Bigger problem: People are not aware How to fix: - Review EVERY AI-generated line - Run security scanners like Trivy and GitGuardian - Test with malicious inputs - Verify packages exist & are safe Assume insecure until proven otherwise"
X Link 2025-10-16T20:21Z [----] followers, [----] engagements

"Its strange how easily we generalize an entire nation based on the actions of a few. Those who committed crimes should face justice but destroying the lives of innocent people on either side has never been and will never be the right way to stop violence. Sadly that was never the real goal"
X Link 2025-10-16T23:16Z [----] followers, [---] engagements

"How Load Balancers Actually Work What It Does - Distributes incoming traffic across multiple servers - Prevents any single server from getting overwhelmed - Like a traffic cop for your application Basic Flow [--]. User sends request [--]. Hits load balancer first [--]. Load balancer picks a server [--]. Forwards request to chosen server [--]. Server responds back through load balancer How It Picks Servers Round Robin - Server [--] - Server [--] - Server [--] - repeat - Simple and fair Least Connections - Sends to server with fewest active connections - Smart for varying request times IP Hash/Sticky Session - Same"
X Link 2025-10-17T00:29Z [----] followers, 12K engagements

"VPS Security Hardening [--]. Update Everything - Run system updates immediately - Enable automatic security updates [--]. SSH Security - Disable root login - Disable password auth (use SSH keys only) - Change default SSH port (22 - custom) - Install fail2ban (blocks brute force) [--]. Firewall Setup - Enable UFW/iptables - Close all ports except necessary ones - Allow only: [--] (HTTP) [---] (HTTPS) custom SSH [--]. Create Non-Root User - Never use root for daily tasks - Create sudo user instead - Use for all operations [--]. Basic Monitoring - Setup log monitoring - Enable alerts for failed logins - Track"
X Link 2025-10-17T06:33Z 13K followers, [---] engagements

"5 tips to secure your SaaS on VPS: [--]. Lock Down SSH Disable password login use SSH keys only change default [--] SSH port Blocks hackers from brute-forcing your server [--]. Enable Firewall Close all ports except [--] (HTTP) [---] (HTTPS) and Custom SSH port Prevents unauthorized access to your services [--]. Keep Everything Updated Run system updates regularly Fixes security vulnerabilities [--]. Force HTTPS Use Let's Encrypt for free SSL Encrypts data between users and your server [--]. Automate Backups Daily database backups to S3 or external storage Recover everything if something breaks"
X Link 2025-10-17T21:12Z 11.5K followers, 12.8K engagements

"DevOps project for beginners Terraform + AWS [--]. Install and configure Terraform [--]. Create AWS IAM credentials for Terraform [--]. Create S3 bucket for Terraform state [--]. Create DynamoDB for Terraform state locking [--]. Create [--] Terraform modules: VPC Subnet EC2 [--]. Write Terraform configuration which uses [--] modules to provision infrastructure [--]. Use Terraform Workspaces to provision infrastructure to three different environments (dev qa prod) Ansible [--]. Create Ansible playbook to install Docker on all three EC2 servers [--]. Create Ansible playbook deploy Nginx on all three EC2 servers [--]. Use Ansible"
X Link 2025-10-17T23:34Z [----] followers, 10.7K engagements

"I'll try to keep the answer as simple as possible. User-data only runs once at instance launch while Ansible lets you update configurations patch software or modify settings on already-running servers without restarting them. Ansible playbooks can be run multiple times and will ensure all servers stay in the desired state even if someone manually changed something. Learning Objective - This is a beginner project and configuration management tools are essential in real DevOps workflows. While the particular steps could be covered in the user-data of the EC2 instance I think it's good to"
X Link 2025-10-18T06:24Z 10.5K followers, [----] engagements

"Pulumi for beginners Pulumi = Infrastructure as Code using real programming languages (Python TypeScript Go etc.) Why it's great: - Write infrastructure with familiar code - Type safety & autocomplete - Reusable components - Multi-cloud support - Track changes with git I just built a serverless starter that auto-discovers Lambda functions supports multiple API Gateways and requires zero code changes to customize. Perfect for getting started with Pulumi + AWS serverless Link to the full blog post and GitHub repository in comments"
X Link 2025-10-18T13:02Z [----] followers, [----] engagements

"@CordasFilip @kelvinjay1 @RealBirdman85 I mostly never use UI to do stuff just to verify resources deployed and configs. I find it difficult to navigate through and it's about liking"
X Link 2025-10-18T13:11Z [----] followers, [--] engagements

"AWS VPC basics for beginners: [--]. VPC - your private network in AWS cloud [--]. Subnet - segment of VPC IP range (public or private) [--]. Internet Gateway - allows internet access to VPC [--]. Route Table - directs network traffic [--]. Security Group - instance-level firewall [--]. NACL - subnet-level firewall [--]. NAT Gateway - lets private subnet access internet [--]. VPC Peering - connects two VPCs Understand networking before launching EC2 instances"
X Link 2025-10-18T17:25Z [----] followers, 10.3K engagements

"@echamudi Pulumi is widely adopted. To be honest for someone who comes from a Python background I really like their ecosystem. Check my below post; I've included a GitHub repo with a Pulumi AWS serverless starter project so you can get a feel for https://x.com/brankopetric00/status/1979533664435269821t=0PatSEJhFJiVQuqncVTpNw&s=19 Pulumi for beginners Pulumi = Infrastructure as Code using real programming languages (Python TypeScript Go etc.) Why it's great: - Write infrastructure with familiar code - Type safety & autocomplete - Reusable components - Multi-cloud support - Track changes with"
X Link 2025-10-18T18:57Z [----] followers, [---] engagements

"Core Linux commands every DevOps engineer uses: [--]. ls - list directory contents [--]. cd - change directory [--]. pwd - print working directory [--]. cat - display file contents [--]. grep - search text patterns [--]. find - search for files [--]. chmod - change permissions [--]. chown - change ownership [--]. ps - list running processes [--]. top - monitor system resources [--]. kill - terminate processes [--]. ssh - remote server access [--]. scp - secure file copy [--]. curl - make HTTP requests [--]. tail -f - follow log files"
X Link 2025-10-18T21:31Z [----] followers, 12.4K engagements

"Docker basics for beginners: [--]. Image = blueprint [--]. Container = running instance [--]. Dockerfile = recipe [--]. Registry = storage for images [--]. Volume = persistent storage Understand this before running your first container"
X Link 2025-10-19T00:26Z 13.8K followers, [---] engagements

"Essential networking concepts for DevOps: [--]. IP address - unique identifier for devices [--]. DNS - translates domain names to IPs [--]. Port - endpoint for network connections [--]. HTTP/HTTPS - web communication protocols [--]. TCP/UDP - transport layer protocols [--]. Load balancer - distributes traffic [--]. Firewall - controls network access [--]. VPN - secure private network [--]. Subnet - network subdivision [--]. Gateway - network entry/exit point [--]. Proxy - intermediary server [--]. SSL/TLS - encryption protocols [--]. SSH - secure remote access [--]. API endpoint - service access point Understand these before"
X Link 2025-10-19T07:19Z [----] followers, 12.6K engagements

"Deploy a three-tier web app on AWS for beginners: [--]. Create a VPC with public and private subnets [--]. Launch an EC2 instance in public subnet (frontend) [--]. Set up RDS MySQL in private subnet (database) [--]. Launch another EC2 in private subnet (backend API) [--]. Configure security groups for each tier [--]. Install nginx on frontend EC2 [--]. Deploy your React app [--]. Set up Node.js backend to connect to RDS [--]. Test the connection between all three tiers [--]. Add an Application Load Balancer [--]. Delete everything after completing to avoid charges"
X Link 2025-10-19T09:25Z 11.2K followers, 24K engagements

"Build a serverless API with AWS Lambda: [--]. Write a simple Python function (handler) [--]. Create a requirements.txt file [--]. Package code and dependencies into a zip [--]. Create Lambda function in AWS console [--]. Upload your zip file [--]. Create API Gateway REST API [--]. Add a resource and POST method [--]. Connect method to Lambda function [--]. Deploy API to a stage [--]. Test with curl or Postman Advanced: [--]. Set rate limits in API Gateway [--]. Configure custom domain for API Gateway [--]. Deploy this infrastructure with Terraform or Pulumi Serverless in under [--] hours"
X Link 2025-10-19T09:27Z [----] followers, [----] engagements

"Essential AWS services every DevOps engineer should know: [--]. EC2 - virtual servers in the cloud [--]. S3 - object storage for files and backups [--]. VPC - isolated network for your resources [--]. IAM - identity and access management [--]. RDS - managed relational databases [--]. Lambda - serverless compute functions [--]. CloudWatch - monitoring and logging [--]. ELB - load balancing traffic [--]. ECR - Docker container registry [--]. CloudFormation - infrastructure as code Understand these before diving into complex architectures"
X Link 2025-10-19T12:22Z 11.1K followers, [----] engagements

"5 Linux concepts you must know for DevOps interviews: [--]. File permissions (chmod chown) and what rwx means [--]. Process management (ps top kill signals) [--]. Basic networking (netstat ss ping traceroute) [--]. Log file locations and how to read them [--]. Package management (apt yum) and service control (systemctl) You will be asked about at least one of these"
X Link 2025-10-19T13:26Z 13.5K followers, [----] engagements

"ECS vs EKS - which to choose: ECS: - Simpler to learn and operate - Tighter AWS integration - Lower operational overhead - Good for AWS-only workloads - Cheaper for small deployments EKS: - Industry standard Kubernetes - Portable across clouds - Larger ecosystem and community - Better for complex orchestration - More job opportunities New to containers Start with ECS"
X Link 2025-10-19T14:34Z [----] followers, 10.4K engagements

"AWS CLI essentials for DevOps: [--]. aws ec2 describe-instances - list EC2 instances [--]. aws s3 ls - list S3 buckets [--]. aws s3 cp file s3://bucket/ - upload to S3 [--]. aws ecs list-clusters - view ECS clusters [--]. aws logs tail group --follow - stream logs [--]. aws iam list-users - view IAM users [--]. aws ec2 start-instances --instance-ids - start EC2 [--]. aws cloudformation describe-stacks - view stacks CLI is faster than console for most tasks"
X Link 2025-10-19T18:06Z [----] followers, [---] engagements

"Terraform vs Pulumi - the real difference: Terraform: - HCL language (declarative) - Massive provider ecosystem - Industry standard - Great documentation - State management required Pulumi: - Real programming languages (Python TypeScript Go) - Better for complex logic - Native testing support - Smaller community - Easier for developers Know Terraform first explore Pulumi later"
X Link 2025-10-19T18:48Z 10.2K followers, [----] engagements

"Basic AWS IAM concepts explained: [--]. User - individual person with credentials [--]. Group - collection of users with shared permissions [--]. Role - set of permissions assumed temporarily [--]. Policy - JSON document defining permissions [--]. Permission - specific action allowed (s3:GetObject) [--]. ARN - unique identifier for AWS resources [--]. Principal - entity requesting access [--]. MFA - multi-factor authentication for security Principle: least privilege always"
X Link 2025-10-19T19:56Z [----] followers, [----] engagements

"Your DevOps portfolio needs these [--] projects: [--]. Containerized full-stack app (Docker Compose with frontend backend database) [--]. Infrastructure as Code (Terraform deploying to AWS/Azure) [--]. CI/CD pipeline (GitHub Actions or Jenkins automating builds) [--]. Monitoring setup (Prometheus and Grafana dashboards) Public GitHub repos with clear README files showing what you built and why"
X Link 2025-10-19T20:13Z 10.5K followers, 11.7K engagements

"Understanding container networking: [--]. Bridge network - default containers on same host communicate [--]. Host network - container uses host's network stack [--]. Overlay network - containers across multiple hosts [--]. Port mapping - expose container port to host (-p 8080:80) [--]. DNS resolution - containers find each other by name [--]. Network isolation - containers in different networks can't talk Networking determines how your containers interact"
X Link 2025-10-19T20:42Z 13.8K followers, [----] engagements

"6 skills that will get you hired as a junior DevOps engineer: [--]. Linux command line proficiency (not just basics) [--]. Docker and containerization concepts [--]. One cloud platform deeply (AWS preferred) [--]. Git workflows and version control [--]. Basic scripting (Bash or Python) [--]. Understanding of CI/CD principles You don't need to be an expert but show hands-on experience with real projects"
X Link 2025-10-19T23:15Z [----] followers, [----] engagements

"5 tips to land your first DevOps job with no experience: [--]. Build 5-10 projects showing different tools - quality over quantity [--]. Contribute to open source DevOps projects on GitHub [--]. Get one cloud certification (AWS SAA or Azure Fundamentals) [--]. Write blog posts explaining what you learned [--]. Network on LinkedIn and Twitter - comment share engage Consistency for [--] months will get you noticed"
X Link 2025-10-20T00:46Z [----] followers, [----] engagements

"Skills to learn for DevOps in 2025: [--]. Master Git and GitHub workflows first - foundation for everything [--]. Basic networking and Linux administration [--]. Learn Docker before Kubernetes - containers then orchestration [--]. Pick one cloud (AWS recommended for jobs market) [--]. Terraform for infrastructure as code [--]. Python or Go for automation scripts [--]. Azure DevOps or GitHub Actions for CI/CD This order makes learning logical and builds on itself"
X Link 2025-10-20T02:06Z [----] followers, [----] engagements

"ArgoCD vs Flux - which GitOps tool should you choose ArgoCD: - Beautiful UI for visualizing deployments - Easier for teams new to GitOps - Great for multi-cluster management - Larger community and ecosystem Flux: - More lightweight and Kubernetes-native - Better for complex automation with Flagger - Native support for Helm Kustomize - Backed by CNCF Recommendation: Start with ArgoCD if you want quick wins and visibility. Use Flux for advanced progressive delivery. Both beat manual kubectl commands"
X Link 2025-10-20T10:10Z [----] followers, [----] engagements

"Tough night for AWS on-call engineers"
X Link 2025-10-20T11:12Z [----] followers, 12.5K engagements

"Database backup strategies that actually work: [--]. Automated daily full backups to S3 with versioning [--]. Point-in-time recovery enabled for critical databases [--]. Replicate backups to different AWS region [--]. Test restores monthly - broken backups are useless [--]. Keep [--] days of backups minimum [--] years for compliance [--]. Snapshot before major deployments or migrations [--]. Monitor backup jobs and alert on failures [--]. Document exact restore procedures step-by-step You do not have backups until you have successfully restored from them. Test your backups before disaster strikes"
X Link 2025-10-20T15:06Z [----] followers, [----] engagements

"AWS disaster recovery strategies ranked by cost: [--]. Backup & Restore - cheapest slowest recovery (hours) [--]. Pilot Light - minimal running resources faster than backup (30-60 min) [--]. Warm Standby - scaled-down version running quick recovery (minutes) [--]. Multi-site Active-Active - most expensive instant failover Most companies use: - Backup/Restore for non-critical systems - Pilot Light for databases - Warm Standby for critical apps - Active-Active only for revenue-critical services Match your DR strategy to business impact not perfection"
X Link 2025-10-20T16:14Z [----] followers, 14.6K engagements

"Most DevOps interviews fail at the architecture question. Q: Design a highly available web application. You need to explain: - Load balancer strategy - Auto-scaling triggers - Database replication - Caching layer - Disaster recovery plan - Monitoring approach Practice system design not just tools"
X Link 2025-10-20T18:19Z 11.7K followers, 12.4K engagements

"Top [--] tools for container security in 2025: [--]. Trivy - Vulnerability scanning [--]. Falco - Runtime threat detection [--]. Open Policy Agent - Policy enforcement [--]. Cosign - Container signing [--]. Snyk - Dependency scanning [--]. Kyverno - K8s policy management Security cannot be an afterthought"
X Link 2025-10-20T21:19Z 11.7K followers, [----] engagements

"The good news: Our multi-cloud strategy saved us. The bad news: It was Azure that saved us. The worse news: Now management thinks we should use Azure"
X Link 2025-10-20T23:28Z [----] followers, [---] engagements

"Database scaling strategies: Vertical: Bigger machine limited ceiling Horizontal: More machines complex but scalable Read replicas: Distribute read load Sharding: Split data across databases Caching: Redis/Memcached before DB Pick strategy based on bottleneck not hype"
X Link 2025-10-21T06:50Z 11.6K followers, [---] engagements

"Top [--] tools for policy as code: [--]. Open Policy Agent - Universal policy engine [--]. HashiCorp Sentinel - Terraform governance [--]. Kyverno - Kubernetes-native policies [--]. Cloud Custodian - Cloud resource compliance [--]. Conftest - Test configs before deploy Enforce standards through automation not tickets"
X Link 2025-10-21T08:11Z 11.7K followers, [----] engagements

"@mmusaktk @grapevinesoc Unfortunately it took them [--] hours to completely resolve the case. I can't compete against the argument that it all depends on the budget and business needs in the end"
X Link 2025-10-21T11:30Z [----] followers, [--] engagements

"Moved from Heroku to AWS ECS because Heroku cost was killing us. [--] months later realized we spent more on: - Engineer time managing infrastructure - RDS instead of Heroku Postgres - Load balancers NAT gateways data transfer - Observability tools we got free on Heroku Total monthly cost went from $8000 to $6500. But we now spend [--] hours/week on infrastructure. The hidden cost of ownership is real. Sometimes premium platforms are worth it"
X Link 2025-10-21T13:25Z [----] followers, [----] engagements

"Remember when everyone was clowning on devs for making ChatGPT wrappers OpenAI just dropped a whole Chromium wrapper and called it innovation"
X Link 2025-10-21T23:59Z [----] followers, [----] engagements

"@decruz For AWS it wasn't. For others depending on their us-east-1 region it was. I agree that the multi-region is super complex and involves not only infrastructure teams. 👍"
X Link 2025-10-22T07:06Z 10K followers, [----] engagements

"We chose serverless over Kubernetes for our new microservices platform. Context: - Team of [--] engineers - [--] microservices planned - Budget: $15k/month - No dedicated platform team Kubernetes would have meant: - [--] engineers full-time on cluster management - EKS costs + node costs - Learning curve for the team - More operational overhead Serverless (Lambda + API Gateway) gave us: - Pay per request pricing - Zero infrastructure management - Auto-scaling included - Team focused on features not infrastructure Current costs after [--] months: - $3200/month for 50M requests - Zero ops incidents related"
X Link 2025-10-22T09:15Z 11K followers, 18.4K engagements

"@echamudi True. That's the tradeoff we accepted"
X Link 2025-10-22T09:19Z [----] followers, 10.4K engagements

"Reduced our Kubernetes cluster costs by 60% without changing applications. Starting point: - [--] nodes in production cluster - Mostly c5.2xlarge instances - Average CPU utilization: 18% - Monthly cost: $22000 Optimizations: - Implemented cluster autoscaler with proper pod resource requests - Switched to spot instances for non-critical workloads - Right-sized node types based on actual workload patterns - Enabled horizontal pod autoscaling - Set up Karpenter for better bin-packing New state: - 12-25 nodes depending on load - Mix of spot and on-demand - Average CPU utilization: 65% - Monthly"
X Link 2025-10-22T12:15Z [----] followers, 15.7K engagements

"@der_rehan I liked Datadog as well. My previous client had discounts but still the bill was around $75k"
X Link 2025-10-22T16:59Z 12.2K followers, 11K engagements

"@mfreeman451 Was that really a GitHub actions problem or pipeline design"
X Link 2025-10-22T17:11Z 11.9K followers, [----] engagements

"Automated our AWS cost reporting. Finance loves us now. The problem: - Finance asked for monthly cost breakdown by project - Manual process took [--] hours - Required pulling data from multiple sources - Always delivered late - CFO frustrated What we built: - Lambda function runs daily - Queries AWS Cost Explorer API - Groups costs by tags - Generates detailed report - Uploads to S3 - Sends summary to Slack - Exports to Google Sheets Cost attribution: - Tagged all resources by project - Environment (prod/staging/dev) - Team ownership - Cost center The report includes: - Daily spend trends -"
X Link 2025-10-22T21:21Z 12K followers, 11.4K engagements

"@Amaz1ngly Operational costs employees on site limited scaling electricity internet manual management office/site"
X Link 2025-10-22T22:03Z [----] followers, [----] engagements

"@petermajewski Really comes down to whether you want to manage infrastructure vs. paying for abstraction and elasticity. Tenant onboarding frequency and complexity could be a good argument for or against that"
X Link 2025-10-23T06:25Z [----] followers, [---] engagements

"@GergelyOrosz Exactly. I'd personally go with Datadog if budget wasn't an issue"
X Link 2025-10-23T08:11Z 11K followers, [---] engagements

"Our app worked perfectly until we hit 10K concurrent users. Then everything fell apart. Bottlenecks: - Database connection pool maxed at [---] - Session storage in-memory not distributed - File uploads went to local disk - No CDN for static assets Fixed in priority order. Scaling isn't one problem. Lesson: Test at 10x your current scale. Regularly"
X Link 2025-10-23T12:40Z 11.1K followers, 13.9K engagements

"@Tristan0x Exactly AWS networking is made complex on purpose. Thanks for sharing mate. 🙌"
X Link 2025-10-24T08:53Z [----] followers, [---] engagements

"Reviewed [--] secrets management solutions for a client. HashiCorp Vault Enterprise: $850/month unlimited everything steep learning curve AWS Secrets Manager: $0.40 per secret/month $0.05 per 10k API calls Azure Key Vault: $0.03 per 10k operations dirt cheap Google Secret Manager: $0.06 per secret/month clean API HashiCorp Vault (self-hosted): EC2 costs 100% maintenance burden We went with AWS Secrets Manager. Why: - Already heavily invested in AWS - [--] secrets = $32/month total - Native IAM integration (no new auth) - Automatic rotation for RDS - Zero maintenance overhead HashiCorp Vault is"
X Link 2025-10-24T14:00Z 11.5K followers, 10.7K engagements

"We hit 100k requests per minute and Redis became our bottleneck. What we found: - Connections saturated due to lack of pooling - Eviction policy was set to volatile-lru - Logs flooded with OOM warnings Fix: - Added connection pooling - Upgraded to Redis Cluster with memory-tiered nodes - Moved session data to DynamoDB"
X Link 2025-10-27T07:20Z 12.9K followers, [----] engagements

"Set up centralized secret management. HashiCorp Vault. Industry best practice. Perfect security. Then application needed a database password at startup. Problem: How does application authenticate to Vault to get the secret - Can't hardcode Vault token - that's also a secret - Can't use environment variable - defeats the purpose - Can't store in config file - not secure Welcome to the bootstrap problem. You need a secret to get secrets. Solutions we tried: [--]. AWS IAM authentication - Application uses IAM role to auth to Vault - Works but now coupled to AWS [--]. Kubernetes service account - Works"
X Link 2025-10-27T09:09Z 11.6K followers, [----] engagements

"Build a cost tracking dashboard for cloud resources. Project features: - Track daily AWS/GCP/Azure spending - Visualize costs by service - Alert when spending exceeds threshold - Show month-over-month trends - Identify cost anomalies Data collection: - Pull cost data from cloud provider API - Store in time-series database (InfluxDB) - Update every [--] hours - Tag resources by team/project Dashboard components: - Current month spend vs budget - Top [--] expensive resources - Cost trend graph (last [--] days) - Alerts configuration interface - Resource recommendations Alerts: - Daily spend exceeds $X"
X Link 2025-10-28T06:30Z 12.8K followers, [----] engagements

"DevOps team analyzed AWS data transfer costs. $830 monthly in cross-AZ traffic. Breakdown: - EC2 to RDS (cross-AZ): $380 - Application load balancer cross-AZ traffic: $270 - Cross-AZ EC2 instance communication: $180 Solution seemed obvious: Keep everything in same AZ. No cross-AZ charges. Moved: - All EC2 instances to us-east-1a - RDS primary and read replica to us-east-1a - Load balancer targets only us-east-1a Data transfer cost: $20 monthly (some unavoidable cross-AZ health checks) Savings: $810 monthly Two months later: AWS maintenance on us-east-1a. Entire infrastructure: Down for 1"
X Link 2025-10-28T10:24Z 12K followers, 13.2K engagements

"Scanned container images for vulnerabilities. Found critical CVE in base image. Updated immediately. OLD: FROM nginx:1.18 NEW: FROM nginx:1.21 Rebuilt image. Deployed. Site broke. Error: "nginx: emerg unknown directive 'ssl_protocols'" Nginx [----] deprecated ssl_protocols directive. Our config used it. Options: [--]. Fix config for new nginx version (2 hours of testing) [--]. Revert to vulnerable version (security risk) [--]. Find middle ground Checked CVE: - Severity: Critical - Affected versions: 1.19.0 - Exploitability: Requires specific configuration we don't have - Our exposure: Low Upgraded to"
X Link 2025-10-28T20:52Z 12.9K followers, 15.4K engagements

"Build a blue-green deployment system manually. Project architecture: - [--] identical environments (Blue and Green) - Load balancer in front - Simple web application to deploy - Database shared between both - Rollback capability Implementation steps: [--]. Set up [--] servers with same app [--]. Configure Nginx to route to Blue (active) [--]. Deploy new version to Green (inactive) [--]. Run smoke tests on Green [--]. Switch Nginx to Green [--]. Keep Blue for instant rollback Automation script requirements: - Deploy to inactive environment - Verify health checks pass - Switch traffic atomically - Rollback command"
X Link 2025-10-29T06:30Z 12.1K followers, [----] engagements

"CloudWatch costs jumped to $890/month. Was $120/month last quarter. Breakdown: - Logs: $780/month - Metrics: $67/month - Alarms: $43/month Where are logs coming from - Application logs: [---] GB/month - Access logs: [---] GB/month - Debug logs: [---] GB/month Optimizations: [--]. ALB access logs to S3: - Cost: $0.023/GB = $16/month - Was: $0.50/GB in CloudWatch = $360/month - Savings: $344/month - Query with Athena when needed [--]. Changed log level: - Production: INFO (was DEBUG) - Reduced logs: [---] GB - [--] GB - Savings: $142/month [--]. Log retention: - Most logs: [--] days (was [--] days) - Error logs: 30"
X Link 2025-10-29T18:03Z 13.1K followers, [----] engagements

"Got email from AWS: "Your Elastic IPs are costing you money." Elastic IP pricing: - Associated with running instance: Free - Not associated with instance: $0.005/hour ($3.60/month) - Additional IPs beyond first: $0.005/hour each Found [--] unattached Elastic IPs. Cost: [--] $3.60 = $169/month for nothing. Total waste: - Unattached Elastic IPs: $169/month - Unused additional IPs: $43/month - Unused ALBs: $144/month - Total: $356/month Cleaned up: - Released all unattached Elastic IPs - Removed additional IPs from instances - Deleted unused ALBs New cost: $0/month Savings: $356/month Set up alerts:"
X Link 2025-10-29T19:20Z 12.8K followers, [----] engagements

"The three pillars of observability: [--]. Metrics: what's happening (CPU at 80% [---] errors/min) [--]. Logs: why it's happening (stack traces error messages) [--]. Traces: where it's happening (request flow across services) Without all three you're debugging blind"
X Link 2025-10-29T19:55Z 13K followers, 10.5K engagements

"We evaluated [--] CI/CD platforms over [--] weeks. Here's our scoring methodology and why we chose GitHub Actions. The candidates: - Jenkins GitLab CI GitHub Actions CircleCI Evaluation criteria: - Ease of setup - Developer experience - Cost at our scale - Integration with existing tools - Performance - Maintenance overhead The testing: - Migrated same project to each platform - Ran [---] builds on each - Measured setup time build time debugging ease - Calculated costs for [----] builds/month Results: - Jenkins: powerful but setup took [--] days high maintenance - GitLab CI: great but we're on GitHub"
X Link 2025-10-29T22:30Z 12.8K followers, 13.7K engagements

"Our Redis cache filled up and took down the entire site. Max memory policy was set to 'noeviction'. What broke: - Cache hit 100% memory - All writes started failing - Application couldn't cache anything - Fell back to database for everything - Database immediately overwhelmed - Site returned 500s The fix: - Changed to allkeys-lru eviction - Increased memory limit - Added memory monitoring - Set up alerts at 80% Downtime: [--] minutes"
X Link 2025-10-30T03:49Z 13K followers, 16K engagements

"Automated our code review reminders. Pull request merge time dropped from [--] days to [--] hours. The problem: - PRs sitting for days - Engineers forgetting to review - Blocked work piling up - Manual pings in Slack The automation: - Bot checks open PRs hourly - Tags reviewers after [--] hours - Escalates to team lead after [--] day - Posts stats in daily standup - Gamifies review count Results: - Average PR age: [--] days - [--] hours - Review response time: [--] hours - Merge rate: 3x higher Cost to build: [--] hours Time saved: 100+ hours per month"
X Link 2025-10-30T05:05Z 12.9K followers, [----] engagements

"Breakdown of Azure outage in simple words Wednesday morning (Oct 29) Azure Front Door (AFD) broke Microsoft content delivery network that routes all traffic. This was caused by an "inadvertent configuration change" someone pushed a bad config that went live globally. Azure Portal went down first nobody could access the management console to see what was happening. Then Microsoft [---] services started failing Outlook Teams SharePoint all became unavailable. Gaming services crashed next: Xbox Live Minecraft servers couldn't authenticate players. The broken AFD meant traffic couldn't route"
X Link 2025-10-30T13:40Z 12.9K followers, [----] engagements

"We had to choose: Serverless (Lambda) or Containers (EKS) for a new image processing service. Team was split: - EKS meant standardized tooling with the rest of our stack. - Lambda meant zero server management. The workload: Spiky. [--] requests/hour then [-----] during a peak event. Decision: Lambda + S3 Events. Why: Scaling from [--] to [-----] and back to [--] is exactly what serverless is for. The cost of running EKS nodes 24/7 for a spiky workload was 50x higher. Outcome: It costs us $12/month"
X Link 2025-10-31T11:42Z 16.3K followers, 52.5K engagements

"We had 300+ orphaned EBS volumes. What happened: Our EC2 termination script was buggy. It terminated the instances but the DeleteOnTermination flag was set to false. We were paying for 5TB of disks that weren't attached to anything. Solution: - Wrote a simple script to list all EBS volumes in 'available' state. - Cross-referenced 'Created' date. - Deleted everything older than [--] days. Saved $400/month"
X Link 2025-10-31T17:36Z 12.7K followers, [----] engagements

"Needed an API gateway for our K8s cluster. Option 1: AWS API Gateway + ALB Ingress. - Pro: Fully managed scales infinitely has auth etc. - Con: It's expensive. And it's two hops (API-GW - ALB - Pod). Option 2: Just use the AWS ALB Ingress Controller. - Pro: Simple cheap direct to pod. - Con: No auth no rate limiting no 'gateway' features. We chose Option [--]. We decided that auth WAF and rate limiting were non-negotiable and we'd rather pay AWS to manage it than build it ourselves. We're paying for the gateway features not the ingress"
X Link 2025-10-31T22:41Z 12.1K followers, 16.3K engagements

"Implemented chaos engineering in production. Simulated failure of payment service. Actual customers couldn't pay. Chaos very realistic"
X Link 2025-11-02T00:00Z 13.5K followers, [----] engagements

"We A/B tested our Python Lambda on x86 vs. ARM (Graviton2). Results: - x86 (1GB mem): 150ms execution time. - ARM (1GB mem): 110ms execution time. Graviton2 was 26% faster and 20% cheaper. It wasn't a free migration. We had to rebuild [--] native C++ dependencies for arm64. But a 20% cost reduction on [--] billion invocations/month was worth the 1-week build project"
X Link 2025-11-02T11:20Z 13K followers, [----] engagements

"We created VPC Interface Endpoints (PrivateLink) for SQS SNS and other AWS services. Goal: Better security (no internet traffic). Problem: Our AWS bill increased by $890/month. - VPC Gateway Endpoints (for S3 DynamoDB) are free. - VPC Interface Endpoints (for everything else) are not free. You pay an hourly fee + a per-GB data processing fee. We kept them because the security was worth it. But PrivateLink is not a cost-saving tool"
X Link 2025-11-02T15:41Z 13K followers, [----] engagements

"The goal of automation is not to make a 10-minute task take [--] minute. It's to make a 10-minute task impossible to do wrong"
X Link 2025-11-03T02:01Z 13K followers, [----] engagements

"Our incident started with a single pod failing. What happened: - The load balancer correctly removed it. - Traffic shifted to the remaining [--] pods. - This slightly increased their memory usage. - Which pushed them just over the K8s memory limit. - One by one the OOMKiller reaped them. - A 1% failure cascaded into a 100% outage. Your system is only as resilient as its behavior at 99% load. Test for cascading failures not just simple ones"
X Link 2025-11-03T03:07Z 13.1K followers, [----] engagements

"For fun I added a Grafana dashboard tracking the age of the oldest pod in each deployment. A month later we noticed one service's oldest pod was [--] days old while all others were 2-3. We checked it. It was a 'zombie' pod that failed its health check but somehow never got terminated by Kubernetes. It was silently failing to process jobs"
X Link 2025-11-03T05:48Z 13K followers, 16.8K engagements

"We reduced deployment time from [--] minutes to [--] minutes. The fix Stopped running the entire test suite on deploy. Instead we run it on PR merge and deploy the artifact that passed tests. Seems obvious now but for [--] years we were testing the exact same code twice because 'what if something changed' Nothing changed. We just didn't trust our pipeline"
X Link 2025-11-03T07:18Z 13K followers, 15.5K engagements

"Our app handled 10k users fine. At 100k users everything was still smooth. At 150k users the database started timing out at 2am every night. The culprit A nightly analytics query that worked fine at small scale. It was doing a full table scan that grew exponentially. Scaling doesn't break evenly. It finds your blind spots and breaks those first"
X Link 2025-11-03T09:17Z 12.5K followers, [----] engagements

"We had two services that were constantly in a race condition. Service A would call B but B needed data from A that A hadn't written to the cache yet. We tried everything complex. Distributed locks. Queues. The final fix A dev added a 500ms intentional delay to Service A API handler. It felt wrong. But it worked. 100% of the time"
X Link 2025-11-03T12:22Z 12.7K followers, [----] engagements

"AWS locks S3 bucket names for couple of hours. Let's say you had an S3 bucket frontend-app created in us-east-1. You want to change the region to eu-central-1 You delete the S3 bucket in us-east-1 region AWS locks bucket name and throws below error A conflicting conditional operation is currently in progress against this resource. Please try again. You need to wait for couple of hours for it to become available again"
X Link 2025-11-03T14:00Z 13.1K followers, 16.6K engagements

"Stripe should implement charge limits which could be configured by user during the checkout. E.g. you want to subscribe to X app it's $20/month you set max charge amount on your card to $30 A tale of how things can go wrong very fast: Yesterday @philz1337x accidentally charged my Wise card $80000 via @Stripe Accidents can happen and the charge was declined but then @Wise immediately froze my card That card was also tied to my @Cloudflare and responsible for https://t.co/zsiWubsfvb A tale of how things can go wrong very fast: Yesterday @philz1337x accidentally charged my Wise card $80000 via"
X Link 2025-11-03T14:25Z 13.1K followers, [----] engagements

"We used sticky sessions on our load balancer. It was an easy fix for a stateful web app we inherited. When we scaled from [--] to [--] nodes 'stickiness' meant traffic was horribly imbalanced. Some new nodes got [--] traffic while old nodes were 100% saturated with 'sticky' users. Scaling isn't just about adding servers. It's about ensuring those servers can actually share the new load. We paid the price for that 'easy fix.'"
X Link 2025-11-03T15:29Z 13.2K followers, [----] engagements

"Black Friday [----]. Our checkout service went down at around [--] PM. What we discovered: - Payment gateway was fine - Database was fine - Load balancers were fine - But every request was timing out after exactly [--] seconds The culprit A third-party fraud detection service we added two weeks earlier. Their API was down and we had no timeout configured. Client lost a lot in sales in [--] minutes. Now every external dependency has a 3-second timeout and a circuit breaker"
X Link 2025-11-03T16:35Z 13.5K followers, [----] engagements

"Our devs set most new Lambda functions to 2048MB of memory 'just in case.' We ran the AWS Lambda Power Tuning tool. Most functions never used more than 300MB. - We right-sized 50+ functions in an afternoon. - The cost-per-invocation dropped significantly. - Our Lambda bill (which was growing fast) was cut by 60%. Lesson: Right-sizing isn't just for EC2. Serverless waste is just harder to see"
X Link 2025-11-03T19:37Z 13.1K followers, [----] engagements

"Our app ran on [--] 't3.medium' instances. They were always bursting their CPU credits and slowing down. We moved the workload to [--] 'c5.large' instances. - The cost-per-instance was 3x higher. - But we needed 75% fewer of them. - Total cost dropped 40% and performance became predictable. Lesson: The cheapest instance isn't always the cheapest solution"
X Link 2025-11-03T20:43Z 13K followers, [----] engagements

"We had a Rails app on Kubernetes that processed user uploads. Used EBS volumes for storage. Worked great until we enabled multi-AZ for high availability. The problem: - Pod in us-east-1a with EBS volume attached - Pod gets rescheduled to us-east-1b - EBS volumes can't move across AZs - Pod stuck in 'ContainerCreating' state - Users can't access their files Our options with EBS: - Keep pods pinned to specific AZs (defeats the purpose of multi-AZ) - Take snapshot restore in new AZ wait [--] minutes (not acceptable) - Duplicate data across multiple EBS volumes (nightmare to sync) Switched to EFS:"
X Link 2025-11-03T22:39Z 13.1K followers, [----] engagements

"Latency was spiking but only for users in Asia. All our EU/US dashboards were green. - Checked application code: fine. - Checked regional network: fine. - We found a small single-region Redis cache in the US for one microservice - The Asian users' traffic was back-hauling across the globe to hit that cache The root cause was an accidental omission of a multi-region cache configuration for a non-critical feature"
X Link 2025-11-04T02:18Z 13.4K followers, [----] engagements

"We ran a Chaos Engineering test: randomly killing database replicas during peak hours. - Hypothesis: The failover would be seamless and take less than [--] seconds - Result: Failover was seamless. But the application stopped reading from the new primary - Root Cause: A stale connection string cache in a load balancer The test didn't validate the database. It validated an obscure networking component. Exposing the weakest link often a dependency not the main service"
X Link 2025-11-04T03:42Z 12.8K followers, 11.6K engagements

"The classic decision: High availability (HA) vs. lower cost and complexity. - We needed 99.99% uptime so we went for a multi-region active-active setup - This doubled our infrastructure cost and tripled the complexity of every deployment - Turns out 99.9% was acceptable for our business SLA Don't design for a higher availability requirement than the business actually needs. Every nine you add comes with an exponentially increasing hidden complexity tax"
X Link 2025-11-04T04:34Z 12.2K followers, [----] engagements

"NLB (Network Load Balancer) pricing is structurally cheaper for high-throughput low-payload TCP traffic. NLB is based on Connection Hours and $0.006/LCU. ALB is based on LCU and Processed Bytes ($0.008/LCU $0.008/GB). Low-volume L7 traffic (HTTP/S) is cheaper on ALB; high-volume low-payload L4 (TCP) traffic is cheaper on NLB. For applications where data processing is negligible NLB is structurally cheaper due to lower LCU rates and the absence of a processed byte component"
X Link 2025-11-04T11:49Z 13.1K followers, [----] engagements

"The NAT Gateway tax is one of the highest infrastructure hidden costs. A microservice in a private subnet pushing 1TB/mo of logs to an external API costs $32/mo for the gateway plus $45/mo (0.045/GB) in data processing. Total: $77/mo. VPC Endpoints for internal traffic (S3/DynamoDB) are free of data processing charges. Eliminate NAT gateway use cases by prioritizing VPC Endpoints for all relevant AWS services saving on both hourly uptime and data processing fees"
X Link 2025-11-04T14:45Z 13K followers, 16.6K engagements

"Lambda's cost is non-linear with memory. A 128MB function (100ms duration) costs $0.000000208 per execution. Scaling to 1024MB might reduce duration to 50ms costing $0.000000333 per execution. Doubling cost for 50% duration is a bad trade. However if 1024MB reduces duration to 10ms the cost is $0.000000066 a net saving. The optimal cost point is the memory setting that achieves the lowest duration"
X Link 2025-11-05T07:12Z 13.1K followers, [----] engagements

"@tinyannadas If it's I/O-bound and waiting it's bad to deploy to Lambda"
X Link 2025-11-05T08:33Z 12.7K followers, [---] engagements

"Our worst outage happened because of a comma. Configuration file: max_connections: [----] Our parser interpreted that as [--] (it stopped reading at the comma). The terrifying part This config had been deployed for [--] months. We only noticed when traffic increased and suddenly we could only handle [--] concurrent connection. Lessons: - Validate configs at deploy time not runtime - Integration tests should check actual resource limits - Syntax errors don't always throw errors"
X Link 2025-11-05T09:02Z 13K followers, 13.4K engagements

"@CPUFXRnDMV Exactly. We missed to test this as we moved from [--] digits to [--] digits classic human oversight"
X Link 2025-11-05T10:51Z 12.6K followers, [---] engagements

"Querying a 10TB dataset in S3 via Athena costs $5/TB scanned. An inefficient query scanning the full dataset costs $50. The same query run against a partitioned dataset scanning 10GB costs $0.05. Partitioning is not just a performance feature; it is a primary cost gate for data lake query services like Athena Glue and EMR. Always partition by highest cardinality keys (e.g. date ID) to minimize bytes scanned"
X Link 2025-11-05T13:17Z 12.8K followers, 15.5K engagements

"An ECS service accessing S3 required a high-traffic sidecar for internal data exchange generating 20TB/mo in cross-AZ data transfer fees ($1800/mo). Replacing the sidecar's S3 calls with a VPC Endpoint for S3 eliminated the data transfer charge completely. Saved $1800/mo by moving egress traffic from a NAT Gateway route (charging for processed data) to an S3-specific VPC Endpoint route (zero transfer cost). Prioritize endpoints over NAT for internal service communication"
X Link 2025-11-05T16:29Z 13.5K followers, [----] engagements

"@myonlinetrust @apparentorder Thanks for sharing. Would be interesting to set up a self-hosted NAT gateway and see the pros/cons"
X Link 2025-11-05T18:12Z 12.7K followers, [--] engagements

"We went from 100k to 2M daily users in [--] weeks. Everyone expected the database to be the bottleneck. We had read replicas sharding plans the works. What actually broke Our logging infrastructure. - 500GB of logs per day - Elasticsearch cluster melted - Log shipping consumed 30% of app server CPU - Debugging became impossible because we couldn't query recent logs We were so focused on the main path that we forgot: observability scales too"
X Link 2025-11-05T22:32Z 13.4K followers, [----] engagements

"We adopted a popular service mesh because all the conference talks made it sound essential. [--] months in: - Added 50-80ms latency to every request - Debugging became impossible (where's the failure App Proxy Mesh) - [--] engineers spent 40% of their time just maintaining it - Solved problems we didn't have We ripped it out. Latency dropped instantly. Debugging got easier. Not every tool that works at Netflix scale works at yours. Your problems are probably more boring than you think and boring solutions are usually better"
X Link 2025-11-06T00:11Z 15.2K followers, [----] engagements

"Pen test found a vulnerability we didn't know existed. In our health checks. The discovery: - External security audit - Found server-side request forgery - In our /health endpoint - Could access internal metadata services - Potentially get AWS credentials How it worked: - Health check pinged dependent services - Took URL as parameter for flexibility - No input validation - Could point to http://169.254.169.254 - Access EC2 instance metadata Why we built it that way: - Seemed convenient for monitoring - Internal endpoint thought it was safe - Behind authentication - But health checks bypass"
X Link 2025-11-06T01:00Z 13.3K followers, [----] engagements

"Cut our AWS bill from $52K to $18K per month. Took [--] weeks of detective work. The audit: - Started with AWS Cost Explorer - Noticed NAT Gateway was $8K/month - Data transfer was $12K/month - RDS storage was $6K/month What we found: - Logs were being sent to S3 via NAT Gateway - Should have used VPC Endpoint (free) - RDS had 14TB of automated backups - Retention was set to [--] days - Old snapshots from deleted databases The fixes: - VPC Endpoints for S3 and DynamoDB - Backup retention to [--] days - Deleted 200+ orphaned snapshots - Moved development to Spot instances"
X Link 2025-11-06T01:45Z 13.4K followers, 36.1K engagements

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