Dino Apps Deserve Love Too!

on YouTube ↗43m

" summary

Describes containerizing a legacy Java web app without changing a line of code using a four-step process — build with Maven inside Docker, put builds in a CI pipeline, create a multi-stage Dockerfile runtime (Tomcat 7 → Tomcat 8 → Alpine experiments), and run end-to-end Selenium tests in containers. Uses docker-compose with docker-compose --exit-code-from to gate CI, spins up LDAP/MySQL/CAS mocks and a standalone Chrome debug Selenium container, finds 26 critical CVEs then reduces them to 5, and demonstrates successful read-only rootfs + tmpfs testing.

AI-written summary · about

" chapters (11)

1. 0:00Start
2. 4:46The Migration Journey
3. 5:32Pre-Migration Notes
4. 11:36Put in a pipeline
5. 13:02Pipeline Feedback in GitLab
6. 22:13Testing with Docker
7. 28:28Rebasing our App . As an example, by simply changing the FROM command in our Dockerfis. we can move our app to Tomcat
8. 32:17Results
9. 33:11Swapping to an Alpine base...
10. 34:23Running our app in read-only mode
11. 35:26A quick note about using read-only . This makes the filesystem of the individual container read only

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