devops
Practical resources about devops for software engineers.
203 results
Automating Infrastructure and Delivery
DevOps bridges the gap between writing code and running it in production. Containerization, CI/CD pipelines, infrastructure as code, and observability are no longer optional — they are table stakes for modern engineering teams.
Find practical recipes for building Docker images, writing GitHub Actions workflows, deploying to Kubernetes, managing Terraform state, and setting up Prometheus monitoring. Each guide is tested against real cloud environments and includes troubleshooting tips.
Slim Production Images with Multi-Stage Docker Builds
How to build minimal production Docker images using multi-stage builds with distroless base images,...
Docker Multi-Stage Build Optimization for Smaller Images
Reduce Docker image size with multi-stage builds and proper layering
Docker Network Isolation and Inter-Container Security
Secure inter-container communication with custom Docker networks, network segmentation, and access...
Docker Secrets Management Without Hardcoding Credentials
Inject secrets into containers using Docker secrets, env files, and external secret managers...
Environment Variables
How to read, set, and manage environment variables securely across Python, JavaScript, and Java.
Feature Flags: Rollout, Targeting, and Safe Rollback
Implement feature toggles to roll out, test, and revert functionality safely without redeploying...
Generate XML Sitemaps Dynamically
Build and serve XML sitemaps from live application data — pagination past the 50k-URL limit,...
Clean Git Commit History with Interactive Rebase
Squash, reorder, edit, and split commits with git rebase interactive. Covers pick, squash, fixup,...
Git Workflow
A practical branching strategy for teams: feature branches, pull requests, and clean commit history.
GitHub Actions Workflow Examples: CI/CD, Matrix & Secrets
How to build and deploy with GitHub Actions using workflows, matrices, caching, secrets,...
Across Multiple OS and Language Versions with GitHub
How to use GitHub Actions matrix strategy to test across multiple operating systems, language...
Share Workflow Logic with GitHub Actions Reusable Workflows
How to create and consume reusable workflows in GitHub Actions, covering inputs, secrets,...
Implement Graceful Shutdown and Zero-Downtime Restarts
How to implement graceful shutdown and zero-downtime restarts for web servers, workers, and...
Grafana Dashboards for Observability with Prometheus
Build Grafana dashboards that visualize Prometheus metrics. Use panels, template variables,...
Health Check Endpoint
How to implement a production-ready health check endpoint for monitoring and load balancers.
Deploy Applications to Kubernetes with Helm Charts
Package, version, and deploy Kubernetes applications using Helm charts with value overrides,...
Immutable Infrastructure
Build immutable infrastructure with versioned machine images and containers to eliminate...
Canary Deployments with Istio Service Mesh
How to use Istio traffic splitting to perform safe canary deployments by gradually shifting user...
Mount Configs and Secrets into Kubernetes Pods
How to mount ConfigMaps and Secrets into Kubernetes pods using env vars, volumes, projected...
Helm Chart Templating: Package Kubernetes Manifests
Build a production-ready Helm chart from scratch: values, helpers, conditionals, ranges, hooks,...
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