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Dockerfile
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FROM golang:1.16-buster as builder
# Up-to-date libgit2 dependencies are only available in
# unstable, as libssh2 in testing/bullseye has been linked
# against gcrypt which causes issues with PKCS* formats.
# Explicitly listing all build dependencies is required because
# they can only be automagically found for AMD64 builds.
# Ref: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668271
RUN echo "deb http:https://deb.debian.org/debian unstable main" >> /etc/apt/sources.list \
&& echo "deb-src http:https://deb.debian.org/debian unstable main" >> /etc/apt/sources.list
RUN set -eux; \
apt-get update \
&& apt-get install -y \
libgit2-dev/unstable \
zlib1g-dev/unstable \
libssh2-1-dev/unstable \
libpcre3-dev/unstable \
&& apt-get clean \
&& apt-get autoremove --purge -y \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /workspace
# copy api submodule
COPY api/ api/
# copy modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
# cache modules
RUN go mod download
# copy source code
COPY main.go main.go
COPY controllers/ controllers/
COPY pkg/ pkg/
COPY internal/ internal/
# build without specifing the arch
RUN CGO_ENABLED=1 go build -o source-controller main.go
FROM debian:buster-slim as controller
# link repo to the GitHub Container Registry image
LABEL org.opencontainers.image.source="https://github.com/fluxcd/source-controller"
# Up-to-date libgit2 dependencies are only available in
# unstable, as libssh2 in testing/bullseye has been linked
# against gcrypt which causes issues with PKCS* formats.
# Ref: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668271
RUN echo "deb http:https://deb.debian.org/debian unstable main" >> /etc/apt/sources.list \
&& echo "deb-src http:https://deb.debian.org/debian unstable main" >> /etc/apt/sources.list
RUN set -eux; \
apt-get update \
&& apt-get install -y \
ca-certificates \
libgit2-1.1 \
&& apt-get clean \
&& apt-get autoremove --purge -y \
&& rm -rf /var/lib/apt/lists/*
COPY --from=builder /workspace/source-controller /usr/local/bin/
RUN groupadd controller && \
useradd --gid controller --shell /bin/sh --create-home controller
USER controller
ENTRYPOINT [ "source-controller" ]