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Optimized adservice Image Size (#67)

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* adservice: Reduced docker image size to ~165MB
(down from ~886MB) by switching to alpine and
using multi stage builds

* adservice: Changed install of glibc in builder to not require untrusted packages

* adservice: Refactored Dockerfile to be a multi stage build. The 'build' step runs from openjdk:8-slim, but the final image is alpine based. We can get away from this since java runs in a vm & the architecture of the images doesn't change between biuld steps
This commit is contained in:
Colin Nelson 2018-10-09 10:42:49 -07:00 committed by Ahmet Alp Balkan
parent 7f40378ecc
commit 571285d9aa
1 changed files with 12 additions and 6 deletions
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18
src/adservice/Dockerfile
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@ -1,16 +1,22 @@
FROM openjdk:8 FROM openjdk:8-slim as builder
RUN GRPC_HEALTH_PROBE_VERSION=v0.1.0-alpha.1 && \
wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
chmod +x /bin/grpc_health_probe
WORKDIR /app WORKDIR /app
# Next three steps are for caching dependency downloads
# to improve subsequent docker build.
COPY ["build.gradle", "gradlew", "./"] COPY ["build.gradle", "gradlew", "./"]
COPY gradle gradle COPY gradle gradle
RUN ./gradlew downloadRepos RUN ./gradlew downloadRepos
COPY . . COPY . .
RUN ./gradlew installDist RUN ./gradlew installDist
FROM openjdk:8-alpine
RUN GRPC_HEALTH_PROBE_VERSION=v0.1.0-alpha.1 && \
wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
chmod +x /bin/grpc_health_probe
WORKDIR /app
COPY --from=builder /app .
EXPOSE 9555 EXPOSE 9555
ENTRYPOINT ["/app/build/install/hipstershop/bin/AdService"] ENTRYPOINT ["/app/build/install/hipstershop/bin/AdService"]