Tag: devops
Docker HEALTHCHECK
A Dockerfile instruction that defines how Docker tests whether a container is healthy — enabling automatic restart and load balancer removal on failure.
2mo ago
devops intermediate
Dependency Audit & CVE Scanning
PHP 5.0+
Automated scanning of project dependencies for known vulnerabilities (CVEs) — composer audit, npm audit, and tools like Snyk run in CI to catch vulnerable packages before deployment.
3mo ago
general intermediate
Docker Multi-Stage Builds
PHP 5.0+ Dockerfile builds using multiple FROM stages — build dependencies (Composer, Node, test tools) in earlier stages, copy only production artifacts to the final minimal image.
3mo ago
devops intermediate
Database Connection Pool Sizing
PHP 5.0+ The optimal pool size is smaller than you think — follow the formula (cores × 2) + effective_spindle_count rather than matching thread count.
3mo ago
performance advanced
Database Migrations
PHP 5.0+
Version-controlled, incremental scripts that evolve the database schema alongside code, enabling reproducible deployments and rollbacks.
3mo ago
general intermediate
Deployment Rollback Strategies
PHP 5.0+ Strategies for reverting a broken deployment quickly — from git revert and re-deploy to instant traffic switching with blue-green or feature flags.
3mo ago
devops intermediate
DevOps
1
A culture and set of practices that unifies development and operations teams to deliver software faster and more reliably.
3mo ago
devops beginner
Documentation as Code
Treating documentation with the same discipline as code — version controlled, reviewed in pull requests, tested for accuracy, and kept close to the code it describes.
3mo ago
general beginner
DORA Metrics
PHP 5.0+ Four metrics from the DevOps Research and Assessment team that predict software delivery performance: deployment frequency, lead time, change failure rate, and time to restore.
3mo ago
devops intermediate