docker: enable sccache (redis) in the Rust image builds (JEF-84)#230
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Wire both Rust image builds into the shared in-cluster sccache Redis (sccache-redis.dev.svc.cluster.local:6379), now that BuildKit is meshed and can reach it. - Dockerfile (engine): REMOVE cargo-chef and collapse to a single builder stage (COPY . . + one `cargo build`). sccache + cargo-chef's `cook` fight over the shared target dir and abort on `.rmeta` hashing (JEF-389). The node/web dashboard stage, cmake, CFLAGS=gnu17, cache mounts, and runtime stage are unchanged. - agent/Dockerfile: already a plain `cargo build`, so just add the sccache install + wrap the build (nothing to remove). Both use the static musl sccache 0.16.0 binary (arch-aware; mozilla/sccache ships no x86_64/aarch64 linux-gnu build — it runs fine on the glibc base). sccache is a HARD GATE (no fallback), CARGO_INCREMENTAL=0, and each build picks a unique random SCCACHE_SERVER_PORT to avoid the shared-netns port 4226 collision on concurrent matrix builds. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013cYVqzH7Xfwea7fAozdQK7
… gate on deploy build) The e2e job runs on ubuntu-latest and does a plain docker build of this Dockerfile, which can never reach the in-cluster sccache-redis — so the redis HARD GATE (timeout 10 sccache --start-server) always trips there (exit 124). Add an ARG SCCACHE_DISABLE (default empty => hard gate stays on for the real deploy build on the meshed BuildKit); scripts/e2e.sh passes --build-arg SCCACHE_DISABLE=1 to build plain/uncached instead of failing. No mesh, no fail-soft on the deploy path.
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Wire both Rust image builds into the shared in-cluster sccache Redis (
sccache-redis.dev.svc.cluster.local:6379), now that BuildKit is meshed and can reach it. Mirrors the proven pattern just merged inmetrics.Changes
Dockerfile(engine): cargo-chef REMOVED. Collapsed thechef/planner/buildersplit into a single builder stage (COPY . .+ onecargo build). sccache + cargo-chef'scookfight over the shared/app/targetdir and abort on.rmetahashing (JEF-389). Base swapped from the cargo-chef image tomirror.gcr.io/library/rust:1-bookworm. The node/web dashboard stage,cmake,CFLAGS=gnu17, cache-mount IDs, and the slim runtime stage are all preserved.agent/Dockerfile: already a plaincargo build(no cargo-chef) — just added the sccache install block and wrapped the build RUN. eBPF/bpf-linker/nightly setup untouched.Notes
x86_64/aarch64linux-gnu build, so both use the static musl sccache 0.16.0 binary (arch-awareuname -mselection) — it runs fine on glibc.CARGO_INCREMENTAL=0; each build exports a unique randomSCCACHE_SERVER_PORTto dodge the shared-netns fixed-port-4226 collision on concurrent matrix builds.🤖 Generated with Claude Code