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Split Dockerfile build steps for better layer caching

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Graham McIntire 2026-02-20 10:18:48 -06:00
parent 84e883701d
commit f1ead99e24
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1 changed files with 8 additions and 6 deletions
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@ -27,17 +27,19 @@ COPY mix.exs mix.lock ./
RUN mix deps.get --only $MIX_ENV && \ RUN mix deps.get --only $MIX_ENV && \
mix deps.compile mix deps.compile
# Copy and compile application # Copy config and application code, then compile
COPY config config COPY config config
COPY lib lib COPY lib lib
RUN mix compile
# Copy assets and static files, then deploy assets
COPY assets assets COPY assets assets
COPY priv priv COPY priv priv
COPY rel rel RUN mix assets.deploy
# Build application # Copy release config and build release
RUN mix compile && \ COPY rel rel
mix assets.deploy && \ RUN mix release
mix release
# Runtime stage # Runtime stage
FROM ${RUNNER_IMAGE} FROM ${RUNNER_IMAGE}