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fix: replace yarn wrapper with ENV vars in Containerfile #5

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Merged
durandom merged 1 commit into from
Jun 10, 2026
Merged

fix: replace yarn wrapper with ENV vars in Containerfile #5

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29 changes: 11 additions & 18 deletions images/code/Containerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,7 @@
# - Node.js is already in the base image (installed by Claude Code)
#
# Yarn is available on PATH immediately — no runtime corepack setup needed.
# DNS proxy config is handled by env/yarn-proxy.env (maps OpenShell's
# HTTP_PROXY to YARN_HTTP_PROXY).
# Proxy config is baked into the image via YARN_HTTP(S)_PROXY env vars.
#
# Build (native arch):
# podman build -t rhdh-fullsend-code:local \
Expand All @@ -24,26 +23,20 @@ FROM ${BASE_IMAGE}
USER root

# ---------------------------------------------------------------------------
# corepack + yarn — the sandbox filesystem policy makes /usr read-only,
# so `corepack enable` fails at runtime. Pre-enable it here and
# pre-download yarn so agents get yarn on PATH with zero startup cost.
# corepack + yarn — pre-enable corepack and pre-download yarn so agents
# get yarn on PATH with zero startup cost. corepack's own shim lands in
# /usr/local/bin and is the only yarn binary — no wrapper script needed.
#
# COREPACK_HOME is set to a writable location that persists across
# the sandbox session. The shim symlinks land in /usr/local/bin
# (writable during build, read-only at runtime — which is fine,
# they're already there).
ENV COREPACK_HOME=/usr/local/share/corepack
# COREPACK_HOME=/tmp/corepack — writable under every sandbox policy.
# YARN_HTTP(S)_PROXY — hardcoded OpenShell proxy; inherited by all child
# processes (including git hook subprocesses), replacing the old wrapper.
ENV COREPACK_HOME=/tmp/corepack
ENV YARN_HTTP_PROXY=http://10.200.0.1:3128
ENV YARN_HTTPS_PROXY=http://10.200.0.1:3128
Comment on lines +30 to +35

RUN mkdir -p "$COREPACK_HOME" \
&& corepack enable \
&& corepack prepare yarn@stable --activate \
&& yarn --version
Comment on lines 37 to 40

# ---------------------------------------------------------------------------
# Wrapper for git hooks (husky) — hooks run in subprocesses without
# the agent's PATH modifications. This wrapper in /usr/local/bin
# (on default PATH) ensures `yarn lint-staged` etc. work.
RUN printf '#!/bin/bash\nexport COREPACK_HOME=/usr/local/share/corepack\nexec /usr/bin/corepack yarn "$@"\n' \
> /usr/local/bin/yarn \
&& chmod +x /usr/local/bin/yarn

USER sandbox