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Kyle Carberry
89bb5bb945
## Problem The `build` job on `main` has been failing intermittently (and now consistently) with `no space left on device` on the `depot-ubuntu-22.04-8` runner. The runner's disk fills up during Docker image builds or SBOM generation, depending on how close to the limit a given run lands. The build was already at the boundary — the Go build cache alone is ~1.3 GB, build artifacts are ~2 GB, and Docker image builds + SBOM scans need several hundred MB of headroom in `/tmp`. No single commit caused this; cumulative growth in dependencies and the scheduled `coder-base:latest` rebuild on Monday morning nudged it past the limit. ## Fix Three changes to reclaim ~2 GB of disk before Docker runs: 1. **Build all platform archives and packages in the Build step** — moves arm64/armv7 `.tar.gz` and `.deb` from the Docker step to the Build step so we can clean caches in between. 2. **Clean up Go caches between Build and Docker** — once binaries are compiled, the Go build cache and module cache aren't needed. Also removes `.apk`/`.rpm` packages that are never uploaded. 3. **Set `DOCKER_IMAGE_NO_PREREQUISITES`** — tells make to skip redundantly building `.deb`/`.rpm`/`.apk`/`.tar.gz` as prerequisites of Docker image targets. The Makefile already supports this flag for exactly this purpose.