The agent version was always showing 0.1.0 because build.rs tried to
run 'git describe' inside the Docker build, but .git directory wasn't
copied into the image.
Changes:
- Add VERSION build arg to Dockerfile
- Pass VERSION as env var to cargo build commands
- Update GitLab CI to pass --build-arg VERSION
- Modify build.rs to prefer BUILD_VERSION env var over git commands
This ensures the version displayed by the agent matches the Docker
image tag it was built with.
Features:
- Parse and compare semantic versions from Docker Hub
- Check if current version is outdated on startup
- Only pull updates when newer version is available
- GitLab CI now tags images with Cargo.toml version
- Created bump-version.sh script for easy version bumping
How it works:
1. Cargo.toml contains source of truth version (0.1.0)
2. GitLab CI extracts version and tags Docker images with it
3. Agent queries Docker Hub for all semver tags
4. Compares current version against latest available
5. Only pulls and restarts if newer version exists
Version bumping workflow:
./scripts/bump-version.sh patch # 0.1.0 -> 0.1.1
./scripts/bump-version.sh minor # 0.1.0 -> 0.2.0
./scripts/bump-version.sh major # 0.1.0 -> 1.0.0
This creates git commit and tag, ready to push.
The multi-architecture builds (amd64 + arm64) were taking 15-20+ minutes
due to QEMU emulation for ARM64 cross-compilation. This is too slow for
regular development iteration.
Changes:
- Main branch builds: amd64 only (much faster, ~3-5 minutes)
- Tagged releases: Still build multi-arch (amd64 + arm64)
- Added Docker layer caching to speed up subsequent builds
- Cache stored in registry for persistence across CI runs
The 'latest' tag will be amd64-only from main branch. Users needing
ARM64 should use a specific version tag (e.g., v0.1.0).
Fixed docker buildx errors in CI/CD pipeline:
1. Set DOCKER_TLS_CERTDIR to empty string to disable TLS
(buildx with docker-in-docker doesn't work well with TLS certs)
2. Added fallback to reuse existing builder if creation fails
(docker buildx create ... || docker buildx use ...)
This fixes the error:
'could not create a builder instance with TLS data loaded from environment'
- Change registry from GitLab to Docker Hub (gmcintire/towerops-agent)
- Update authentication to use DOCKERHUB_USERNAME and DOCKERHUB_TOKEN
- Remove vntx runner tags to use GitLab shared runners
