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Extract OPA executable from opa docker image #316

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merged 6 commits into from
Nov 8, 2022
Merged

Extract OPA executable from opa docker image #316

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82926df
[enh] Extract OPA executable from official docker images
tibotix Nov 5, 2022
cf961ad
[enh] Configure build and publish various opal-tags
tibotix Nov 5, 2022
975fc67
[fix] typo and missing netcat
tibotix Nov 5, 2022
7922052
[enh] use separate opa-extractor image
tibotix Nov 5, 2022
6b63bd0
[enh] Test all OPA tags in CI
tibotix Nov 6, 2022
458de42
Revert workflow files
tibotix Nov 8, 2022
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22 changes: 19 additions & 3 deletions docker/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,21 @@ ENV OPAL_INLINE_OPA_ENABLED=false
EXPOSE 7000
USER opal


FROM alpine:latest as opa-extractor
USER root

RUN apk update && apk add skopeo tar
WORKDIR /opal

# copy opa from official docker image
ARG opa_tag=latest-static
RUN skopeo copy "docker://openpolicyagent/opa:${opa_tag}" docker-archive:./image.tar && \
mkdir image && tar xf image.tar -C ./image && cat image/*.tar | tar xf - -C ./image -i && \
find image/ -name "opa*" -type f -executable -print0 | xargs -0 -I "{}" cp {} ./opa && chmod 755 ./opa && \
rm -r image image.tar


# CLIENT IMAGE --------------------------------------
# Using standalone image as base --------------------
# ---------------------------------------------------
Expand All @@ -74,10 +89,11 @@ FROM client-standalone as client
# Temporarily move back to root for additional setup
USER root

RUN apt-get update && apt-get install -y curl netcat && apt-get clean
RUN apt-get update && apt-get install -y netcat && apt-get clean

# copy opa from opa-extractor
COPY --from=opa-extractor /opal/opa ./opa

# copy opa from official image (main binary and lib for web assembly)
RUN curl -L -o ./opa https://openpolicyagent.org/downloads/latest/opa_linux_amd64_static && chmod 755 ./opa
# enable inline OPA
ENV OPAL_INLINE_OPA_ENABLED=true
# expose opa port
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