Continuous Integration: Tips & Tricks
summary
Practical CI tactics, starting from a real pipeline that runs 1 hour 20 minutes per push and showing concrete fixes that cut time and cost: use spot EC2 + executors=1, enable shallow clones and repo caching, parallelize tests with Docker Compose -p for isolated parallel runs, split and segment slow suites, lint early, run test scripts outside the CI YAML, and use Docker BuildKit secrets. Examples include Jenkins, Docker and AWS, applied to UK Government & large organizations, and reported to work in production.
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chapters (23)
- 0:00Introduction
- 2:16CI/CD fundamentals
- 9:59CI pipeline hardware
- 12:27Slow Jenkins case study
- 15:56Optimizing Jenkins workers
- 19:28Shallow cloning in CI
- 23:21Conditional test execution
- 25:30CI cleanup strategies
- 27:35Linting in CI workflows
- 31:26Avoiding vendor lock-in
- 34:13CI pipeline architecture
- 39:52Dockerfile best practices
- 41:15PHP-FPM health checks
- 42:59Secure PHP extensions in Docker
- 44:43Docker BuildKit for CI
- 46:30Integration test prep
- 47:52Parallel tests with Docker
- 50:39Breaking down test suites
- 53:27CI pipeline pre/post steps
- 54:10Optimizing Git clone
- 56:18Debugging UI tests
- 58:25Load testing securely
- 1:00:54Q&A
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