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build: add distroless image variant #830

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36 changes: 36 additions & 0 deletions Dockerfile.distroless
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FROM eclipse-temurin:21-jdk-noble AS builder

@SuperQ SuperQ Jun 5, 2026

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FYI, I've updated to Java 25.


SHELL ["/bin/bash", "-xe", "-o", "pipefail", "-c"]

ARG MAVEN_VERSION=3.8.5
ARG MAVEN_SHA512=89ab8ece99292476447ef6a6800d9842bbb60787b9b8a45c103aa61d2f205a971d8c3ddfb8b03e514455b4173602bd015e82958c0b3ddc1728a57126f773c743

ADD https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz /opt/maven.tar.gz
RUN mkdir -p /opt/maven \
&& echo "${MAVEN_SHA512} /opt/maven.tar.gz" | sha512sum -c \
&& tar -x --strip-components=1 -C /opt/maven -f /opt/maven.tar.gz
ENV PATH=/opt/maven/bin:${PATH}

WORKDIR /cloudwatch_exporter
COPY . /cloudwatch_exporter

RUN mvn package \
&& mv target/cloudwatch_exporter-*-with-dependencies.jar /cloudwatch_exporter.jar

FROM gcr.io/distroless/java21-debian12:nonroot

@loosebazooka loosebazooka Jun 15, 2026

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fyi debian12 images are unmaintained, please use a debian13 image

@loosebazooka loosebazooka Jun 15, 2026

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see: https://github.com/GoogleContainerTools/distroless/#what-images-are-available


LABEL org.opencontainers.image.authors="The Prometheus Authors"
LABEL org.opencontainers.image.vendor="Prometheus"
LABEL org.opencontainers.image.title="cloudwatch_exporter"
LABEL org.opencontainers.image.description="CloudWatch exporter for Prometheus"
LABEL org.opencontainers.image.source="https://github.com/prometheus/cloudwatch_exporter"
LABEL org.opencontainers.image.url="https://github.com/prometheus/cloudwatch_exporter"
LABEL org.opencontainers.image.documentation="https://github.com/prometheus/cloudwatch_exporter"
LABEL org.opencontainers.image.licenses="Apache License 2.0"
LABEL io.prometheus.image.variant="distroless"

COPY --from=builder /cloudwatch_exporter.jar /cloudwatch_exporter.jar

EXPOSE 9106
ENTRYPOINT [ "java", "-jar", "/cloudwatch_exporter.jar", "9106"]
CMD [ "/config/config.yml" ]
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