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@brankopetric00 "AWS Azure GitHub Actions Jenkins Pulumi Terraform Nginx Apache VS Code Anything else Cloudflare Akamai Slack Microsoft Teams 1Password LastPass"
X Link @brankopetric00 2025-10-16T22:23Z 5269 followers, 46.3K 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 @brankopetric00 2025-10-18T13:11Z 5266 followers, X engagements

"Simple DevOps project for beginners: X. Create AWS VPC with Terraform X. Create EC2 with Terraform X. Containerize three tier application (FE BE DB) with Docker X. Create simple GitHub Actions pipeline to build and push docker images to Docker Hub X. Create simple GitHub Actions pipeline to deploy docker images to EC2 Advanced: X. Store Terraform state on S3 X. Write docker-compose for three tier app X. Automate Terraform plan and apply with GitHub Actions This project covers basics of: Terraform AWS Docker and GitHub Actions. If you need help feel free to reach out"
X Link @brankopetric00 2025-10-02T10:36Z 5267 followers, 71.5K engagements

"Simple Terraform project for beginners: 1) Install Terraform on your local machine 2) Create AWS account and configure AWS CLI credentials 3) Write Terraform configuration to create a VPC with public and private subnets 4) Deploy an EC2 instance in the public subnet 5) Create a Security Group to allow SSH and HTTP traffic 6) Output the EC2 public IP address Advanced: 1) Store Terraform state in S3 backend with DynamoDB locking 2) Organize code with modules (VPC module EC2 module) 3) Use variables and tfvars files for environment configuration 4) Implement Terraform workspaces for multiple"
X Link @brankopetric00 2025-10-07T11:05Z 5263 followers, 30.4K engagements

"How Kubernetes handles traffic: From URL to Pod You type a URL in your browser. Heres the journey your request takes through Kubernetes: X. DNS Resolution: - Browser asks DNS: Whats the IP for api.myapp.com(http://api.myapp.com) - DNS returns the Load Balancer IP address - Browser now knows where to send the request X. Load Balancer (Entry Point): - Request hits AWS ALB/NLB (cloud load balancer) - Load balancer is created by Kubernetes Ingress or Service type LoadBalancer - Terminates SSL/TLS connection here - Routes traffic based on hostname and path X. Ingress Controller: - Load Balancer"
X Link @brankopetric00 2025-10-13T06:03Z 5266 followers, 31K engagements

"What happens when you type a URL in your browser: You type: google.com X. DNS lookup (domain gets resolved to IP address) X. TCP handshake (connection established with server) X. TLS handshake (HTTPS encryption negotiated) X. HTTP request (browser asks for the page) X. Server response (HTML CSS JS sent back) X. Browser rendering (page displayed on screen)"
X Link @brankopetric00 2025-10-12T13:17Z 5269 followers, 58.6K engagements

"AWS: ALB vs NLB Application Load Balancer (ALB) - Works at Layer X (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 X (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 @brankopetric00 2025-10-16T05:17Z 5251 followers, 6966 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 @brankopetric00 2025-10-17T03:39Z 5267 followers, XXX 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 @brankopetric00 2025-10-11T09:48Z 5269 followers, 6066 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 XX% 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 X or X years - Save up to XX% vs On-Demand - Pay upfront partial or no"
X Link @brankopetric00 2025-10-12T15:35Z 5092 followers, 3757 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 @brankopetric00 2025-10-13T16:16Z 5166 followers, XXX 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 @brankopetric00 2025-10-16T20:21Z 5208 followers, 1014 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 X - Setup: X. Prerequisites: - Azure account with active subscription - Azure CLI installed locally - Docker installed - kubectl installed - Sample application (Node.js/Python/Java) X. Azure Resources: - Create Resource Group - Create Azure Container Registry (ACR) - Create AKS cluster (2 nodes Standard tier) - Enable managed identity for AKS X. Authentication Setup: -"
X Link @brankopetric00 2025-10-14T08:46Z 5269 followers, 16.9K engagements

"My app with XXX monthly active users Tech Stack & Costs - EC2 t3.medium backend API server $30.37/month - Route53 DNS management $0.60/month - Lambda serverless functions $XXXX (free tier) - API Gateway $0.52/month - DynamoDB User data storage $XXXX (free tier) Amazon Cognito $XXXX (free tier) Total: $31.50/month Per User: $0.21/month"
X Link @brankopetric00 2025-10-16T11:37Z 5196 followers, 1390 engagements

"DevOps project for beginners Terraform + AWS X. Install and configure Terraform X. Create AWS IAM credentials for Terraform X. Create S3 bucket for Terraform state X. Create DynamoDB for Terraform state locking X. Create X Terraform modules: VPC Subnet EC2 X. Write Terraform configuration which uses X modules to provision infrastructure X. Use Terraform Workspaces to provision infrastructure to three different environments (dev qa prod) Ansible X. Create Ansible playbook to install Docker on all three EC2 servers X. Create Ansible playbook deploy Nginx on all three EC2 servers XX. Use Ansible"
X Link @brankopetric00 2025-10-17T23:34Z 5269 followers, 5189 engagements

"AWS vs Azure - Common services comparison: Compute: - EC2 Azure VMs (virtual servers) - Lambda Azure Functions (serverless) - EKS AKS (Kubernetes) Storage: - S3 Blob Storage (object storage) - EBS Managed Disks (block storage) - EFS Azure Files (file storage) Database: - RDS Azure Database (managed SQL) - DynamoDB Cosmos DB (NoSQL) - Aurora Azure SQL (high performance) Networking: - VPC Virtual Network (private network) - Route XX Azure DNS (domain management) - CloudFront Azure CDN (content delivery) Identity: IAM Azure RBAC (resource access control) IAM Identity Center Entra ID (formerly"
X Link @brankopetric00 2025-10-12T15:08Z 5258 followers, 16.9K 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 @brankopetric00 2025-10-16T09:57Z 5269 followers, 7413 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 X 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 @brankopetric00 2025-10-08T22:03Z 5248 followers, 6361 engagements

"DevOps project for beginners: Terraform + Azure What you'll build: Deploy a complete web application on Azure using Terraform. Part X - Infrastructure with Terraform: X. Setup (Local machine): - Install Terraform CLI - Install Azure CLI and login: az login - Install kubectl for AKS management - Install Helm X for package management X. 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 X subnets (AKS: 10.0.1.0/24 Services: 10.0.2.0/24) - Configure Network Security Group (NSG) - Allow HTTPS"
X Link @brankopetric00 2025-10-13T07:10Z 5269 followers, 12.1K engagements

"Karpenter + KEDA explained (Kubernetes Scaling): - Your SQS queue has 1000 messages. - KEDA sees it scales pods from X to XX - XX pods need nodes. - Karpenter sees it adds nodes in XX 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 @brankopetric00 2025-10-14T21:36Z 5251 followers, 5697 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 X. User sends request X. Hits load balancer first X. Load balancer picks a server X. Forwards request to chosen server X. Server responds back through load balancer How It Picks Servers Round Robin - Server X - Server X - Server X - 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 @brankopetric00 2025-10-17T00:29Z 5269 followers, 11K engagements

"DevSecOps scanning tools for CI/CD pipelines: SAST (Static Analysis): X. SonarQube - scans code for bugs vulnerabilities and code smells X. Semgrep - fast customizable static analysis with simple rules Dependency Scanning: X. Snyk - finds vulnerabilities in open-source dependencies X. OWASP Dependency-Check - free tool for known vulnerable components Container Security: X. Trivy - scans container images for vulnerabilities and misconfigurations X. Grype - fast vulnerability scanner for container images and filesystems Secret Detection: X. GitGuardian - detects secrets API keys credentials in"
X Link @brankopetric00 2025-10-12T14:34Z 5268 followers, 14.9K engagements

"HTTP Status Codes Every Dev Should Know XXX OK - Success everything worked XXX Created - Successfully made something new XXX No Content - Success but nothing to return XXX Moved Permanently - Resource moved forever update your links XXX Found - Temporary redirect XXX Bad Request - Your request is malformed XXX Unauthorized - Need to login first XXX Forbidden - Logged in but not allowed XXX Not Found - Resource doesn't exist XXX Too Many Requests - You're being rate limited XXX Internal Server Error - Something broke on server XXX Bad Gateway - Proxy/load balancer can't reach server 503"
X Link @brankopetric00 2025-10-17T21:09Z 5269 followers, 5673 engagements

"@CordasFilip @kelvinjay1 @RealBirdman85 Personally I do not like their UI"
X Link @brankopetric00 2025-10-18T13:04Z 5269 followers, XX 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 @brankopetric00 2025-10-16T09:28Z 5262 followers, XXX engagements

"DevOps project for beginners 1) Create EC2 instance 2) Find X tier application (FE BE DB) 3) Containerize application with Docker 4) Build Docker image and push to AWS ECR 5) SSH into EC2 and get AWS ECR credentials 6) Pull Docker image and start container 7) Install nginx web server 8) Configure nginx to point to local container 9) Try accessing application on EC2 public IP Advanced: 1) Create GitHub Actions pipeline for automated deployment 2) Create EC2 IAM profile for accessing AWS ECR 3) Configure Route53 domain and point to EC2 public IP This project covers the basics of deploying an"
X Link @brankopetric00 2025-10-16T13:15Z 5269 followers, 58K engagements