Feature/lab6 Tatyana Shmykova

[lime413]

Goal

Complete Lab 6 by containerizing QuickNotes with Docker Compose, persistence, healthcheck, and bonus hardening.

Changes

• Added a multi-stage Dockerfile for QuickNotes
• Added .dockerignore to reduce the build context
• Added a small Go healthcheck binary for a distroless-friendly healthcheck
• Added compose.yaml with:
  • quicknotes service
  • named volume for /data
  • healthcheck
  • restart policy
  • bonus hardening options
• Added submissions/lab6.md with command output and written analysis for all required tasks and bonus

Testing

• Built the image with docker build -t quicknotes:lab6 ./app
• Verified final image size with docker images quicknotes:lab6 (21.4MB)
• Verified runtime with docker run and curl http://localhost:8080/health
• Verified Compose startup with docker compose up --build -d
• Verified persistence:
  • note exists after docker compose down and up
  • note is removed after docker compose down -v
• Verified bonus hardening with docker inspect, failed sh exec, and read-only root filesystem test
• Ran trivy image --severity HIGH,CRITICAL --no-progress quicknotes:lab6
• Verified signed commit with git log --show-signature

Checklist

• Title is a clear sentence (≤ 70 chars)
• Commits are signed (git log --show-signature)
• submissions/labN.md updated