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Deploy in about a minute: pull CI-built images instead of building on the VPS - #3
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- Push every image to ghcr.io/<repo>/<name>:<commit> from the images job on main, reusing its build cache
- Name compose images ${IMAGE_REGISTRY:-o11y}/<name>:${IMAGE_TAG:-local}, so local builds keep working
- Make infra/deploy.sh pull and start with --no-build when IMAGE_TAG is set, and build only when run by hand without it
- Log the VPS into GHCR with the deploy job's short-lived token and log out when done
- Remove this stack's images from earlier deploys after each pull, leaving other images on the machine alone
- Document the faster deploy and the manual path in infra/README.md
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Why
The deploy job ran
docker compose build --pullon the VPS: all 14 images, including three Rust servers, compiled on a 2-core, 4 GB machine that is also serving the stack and other sites. The deploy for PR #2 was still building after 27 minutes, while CI had already built every image on GitHub's runners minutes earlier.What changes
main, also pushes each image toghcr.io/rshdhere/load-test/<name>:<commit>. It reuses the build cache from the step before, so this is mostly an upload.${IMAGE_REGISTRY:-o11y}/<name>:${IMAGE_TAG:-local}, so localdocker compose up --buildis unchanged.IMAGE_TAGset it runscompose pullandup --no-build, then deletes this stack's images from earlier deploys (only those, so other images on the machine are untouched). Without it, it still builds, for manual use.GITHUB_TOKEN(packages: read, valid only while the job runs), deploys, and logs out. No long-lived credential on the VPS; works whether or not the packages are public.Notes
up, so the running stack keeps serving the previous version.maincreates the GHCR packages.