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Update Dockerfile to use Jemalloc #116

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Update Dockerfile to use Jemalloc #116

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11 changes: 11 additions & 0 deletions Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ RUN export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true \
&& apt-get -q install -y \
ca-certificates \
tzdata \
libjemalloc-dev \
# If your app or its dependencies import FoundationNetworking, also install `libcurl4`.
# libcurl4 \
# If your app or its dependencies import FoundationXML, also install `libxml2`.
Expand All @@ -73,12 +74,22 @@ COPY --from=build --chown=vapor:vapor /staging /app
# Provide configuration needed by the built-in crash reporter and some sensible default behaviors.
ENV SWIFT_ROOT=/usr SWIFT_BACKTRACE=enable=yes,sanitize=yes,threads=all,images=all,interactive=no

# Set the Jemalloc environment variable to enable it depending on the architecture
# We do this as a symlink as there's no way to set an ENV value to something computed
RUN dpkgArch="$(dpkg --print-architecture)"; \
case "$dpkgArch" in \
arm64) ln -s /usr/lib/aarch64-linux-gnu/libjemalloc.so /usr/lib/libjemalloc.so ;; \
x86) ln -s /usr/lib/x86_64-linux-gnu/libjemalloc.so /usr/lib/libjemalloc.so ;; \
esac;

# Ensure all further commands run as the vapor user
USER vapor:vapor

# Let Docker bind to port 8080
EXPOSE 8080

ENV LD_PRELOAD=/usr/lib/libjemalloc.so

# Start the Vapor service when the image is run, default to listening on 8080 in production environment
ENTRYPOINT ["./App"]
CMD ["serve", "--env", "production", "--hostname", "0.0.0.0", "--port", "8080"]