alertmanager/Dockerfile at release-0.27.0-gmp · GoogleCloudPlatform/alertmanager · GitHub

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FROM google-go.pkg.dev/golang:1.24.13@sha256:2ea380febc64f22355a66fd6141eb6575276b3ec45c97c1594f657bc47b60e60 AS gobase
WORKDIR /app
COPY . ./
RUN mkdir /etc/alertmanager
RUN mkdir /alertmanager
ENV GOEXPERIMENT=boringcrypto
ENV CGO_ENABLED=1
ENV GOFIPS140=off
ENV GOTOOLCHAIN=local
ENV GOARCH=${TARGETARCH}
ENV GOOS=${TARGETOS}
RUN if [ "${TARGETARCH}" = "arm64" ] && [ "${BUILDARCH}" != "arm64" ]; then \
      apt install -y --no-install-recommends \
        gcc-aarch64-linux-gnu libc6-dev-arm64-cross; \
      CC=aarch64-linux-gnu-gcc; \
    fi && \
    go build \
    -mod=vendor \
    -ldflags="-X github.com/prometheus/common/version.Version=$(cat VERSION) \
    -X github.com/prometheus/common/version.BuildDate=$(date --iso-8601=seconds)" \
    ./cmd/alertmanager && \
    go build \
    -mod=vendor \
    -ldflags="-X github.com/prometheus/common/version.Version=$(cat VERSION) \
    -X github.com/prometheus/common/version.BuildDate=$(date --iso-8601=seconds)" \
    ./cmd/amtool

FROM gke.gcr.io/gke-distroless/libc:gke_distroless_20260107.00_p0@sha256:76d0dfed4a2148e2c5d2f2c3aae5fc4f2f2ab9ccd842994359ee982a24cb22de
COPY --from=gobase /app/alertmanager /bin/alertmanager
COPY --from=gobase /app/amtool /bin/amtool
COPY --from=gobase --chown=nobody:nobody /etc/alertmanager /etc/alertmanager
COPY --from=gobase --chown=nobody:nobody /alertmanager /alertmanager
COPY LICENSE LICENSE
COPY NOTICE NOTICE

USER       nobody
EXPOSE     9093
VOLUME     [ "/alertmanager" ]
WORKDIR    /alertmanager
ENTRYPOINT [ "/bin/alertmanager" ]
CMD        [ "--config.file=/etc/alertmanager/alertmanager.yml", \
             "--storage.path=/alertmanager" ]