Blue-Green vs Canary vs Rolling Deployments
How the three common deployment strategies differ, when to use each one, and what health checks, traffic shifting, rollback plans, and database compatibility need to be in place first.
devdevopsdeployments
Posts tagged “devops”
Tiny explainers grouped by topic. Spend less time Googling, more time building.
DNS for Engineers
How TTLs really affect changes, why propagation feels slow, where DNS failover helps and where it doesn’t, plus cutover playbooks that keep rollback easy.
devdnsnetworking
Reverse Proxy vs API Gateway vs Load Balancer
Three edge layers, three different jobs: one shapes HTTP traffic, one spreads load, one enforces API policy. Here’s where each belongs.
devdevopsapi
TLS / HTTPS: the parts that break in production
Cert chains, renewals, mTLS, HSTS, and handshake debugging, explained from the operator’s side.
devsecurityweb
Nginx vs Apache — a practical comparison and migration guide
Event‑driven Nginx vs process/thread‑based Apache: performance, memory, config models, .htaccess, reverse proxying, PHP, HTTP/2/3, and how to switch without breaking prod.
devwebservers
Securely Managing Environment Variables (The Right Way)
Why you shouldn’t commit .env files, how to handle secrets differently in local, staging, and production, and the exact patterns to inject, validate, rotate, and audit configuration safely.
devsecuritysecrets
Docker vs Podman — what’s different and how to migrate
As Podman’s daemonless, rootless approach gains traction, here’s a practical comparison with Docker—architecture, security, node networking/volumes, speed, and real migration paths.
devcontainersdocker
When to Use an ENV File (and How to Use it Securely)
.env files are fine for some jobs and a liability for others. Here’s where they fit, where they don’t, and how to keep secrets out of repos and images.
devsecuritysecrets
An Introduction to CI/CD — what Continuous Integration & Deployment actually mean
What CI/CD actually changes day to day, how a pipeline is structured, and the smallest useful version to put in place first.
devcicd