Beyond Docker Buzzwords
summary
Explains why Docker isn’t magic for scalability and shows concrete uses and tradeoffs: Linux kernel features like cgroups and namespaces plus copy‑on‑write make containers fast but require a Linux layer; containerized dev environments replace brittle local setups (moved from H2 to MySQL locally), but VirtualBox vboxfs is slow so teams use NFS/rsync mounts. Describes CI as containers with dynamic CI agents created by job tags, testing strategies (build/test images, use Serverspec/InSpec), Raspberry Pi demos, and what actually worked.
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chapters (14)
- 0:00Start
- 9:10VIRTUAL MACHINES
- 12:18CGROUPS
- 13:59NAMESPACES
- 27:27LOCAL DEVELOPER ENVIRONMENT
- 30:18AUTOMATE DEV ENVIRONMENT SET UP
- 31:38TIPS & TRICKS
- 41:13WHY ONE HESITATES TO TEST
- 42:29COMPLETE ISOLATION
- 43:23TESTING APPROACH 1
- 49:23INTEGRATION TESTS
- 51:01BENEFITS
- 51:39TEST DRIVEN INFRA CODE
- 53:48INNOVATION
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