Kubernetes ConfigMap and Secret: Per-Service Config That Rolls Out
Manage Kubernetes ConfigMaps and Secrets per service: env vs volume injection, rollouts on config change, immutable versions, security limits and debugging.
14 min read
Category
DevOps
Docker, Kubernetes, CI/CD, PostgreSQL, Redis, Nginx, monitoring and deployment.
PostgreSQL Backup and Restore: pg_dump, PITR and Restore Testing
Choose between pg_dump and base backups with WAL archiving based on RPO and RTO, run point in time recovery, and prove backups work with scheduled restores.
14 min read
Deployment Rollback Strategy for Code, Config and Database
Learn how to design a deployment rollback for code, config and database schema, using immutable artifacts, expand/contract migrations and feature flags.
13 min read
Nginx Reverse Proxy Configuration That Holds Up in Production
Configure an nginx reverse proxy correctly: proxy_pass URI rewriting, header inheritance, TLS termination, upstream keepalive, WebSockets and timeouts.
14 min read
PostgreSQL Indexing for Application Developers: A Practical Guide
Learn how B-tree indexes work, how to verify them with EXPLAIN (ANALYZE, BUFFERS), design composite and partial indexes, and ship index changes safely.
14 min read
Backend Hosting Options for Small Teams: VPS vs PaaS vs Kubernetes
Compare VPS, PaaS and Kubernetes for a small backend by operational burden, failure recovery and total hosting cost, including the engineer time each one takes.
12 min read
How to Speed Up GitHub Actions: Caching, Concurrency and Matrix
Speed up GitHub Actions by caching dependencies, cancelling superseded runs with concurrency groups, and shaping matrix jobs to save CI minutes.
14 min read
Backend Monitoring Basics: Metrics, Logs, Traces and SLOs
Learn what metrics, logs and traces each answer, how to tie them together with trace IDs, and how to drive alerting from SLOs instead of raw signals.
13 min read
Dockerfile Best Practices for Small, Fast, Secure Node.js and Java Images
Build small, fast, secure Node.js and Java images with multi-stage builds, cache-aware layer order, pinned minimal bases and a non-root user.
15 min read
CI/CD Pipeline Design: Ordering Stages, Gates and Rollbacks
Learn to order CI/CD stages by cost, build gates with clear pass/fail criteria, and design tested rollbacks before your first production deploy.
13 min read
Kubernetes Basics for Backend Developers: Pods, Deployments, Services
Learn Kubernetes basics as a control loop: how Pods, Deployments and Services work, how to deploy and debug a service, and when Kubernetes is not worth it.
14 min read
GitHub Actions CI for Backends: A Reliable Pipeline Template
Build a reliable backend GitHub Actions CI pipeline: triggers, job splitting, dependency caching, scoped matrix builds, service containers and hardening.
14 min read