Dockerfile

# Build layer
FROM mcr.microsoft.com/openjdk/jdk:21-mariner AS builder

ARG ANT_VERSION=1.10.17
ARG ANT_DOWNLOAD_SHA512=a96ca6455ec9af5e702df7d1ed5a2ec1cfb381eac3e9a767ecb6be1706e826941045e8fd7ca663ba101bc47bfa18351f540dd27e9e7af57908ac78e65268eee7
ARG ANT_MIRROR=https://archive.apache.org

RUN tdnf install -y tar

# Install Ant
RUN set -o errexit -o nounset \
    && echo "Downloading Ant" \
    && curl -fsL -o ant.tar.gz "${ANT_MIRROR}/dist/ant/binaries/apache-ant-${ANT_VERSION}-bin.tar.gz" \
    && echo "Checking Ant download hash" \
    && echo "${ANT_DOWNLOAD_SHA512} ant.tar.gz" | sha512sum -c - \
    && echo "Extracting Ant" \
    && tar -zvxf ant.tar.gz -C /opt/ \
    && rm ant.tar.gz \
    && mv /opt/apache-ant-${ANT_VERSION} /opt/ant

ENV ANT_HOME=/opt/ant
ENV PATH=${PATH}:${ANT_HOME}/bin
RUN ant -version

# Build the application
COPY build.xml build.xml
COPY ./config config
COPY ./lib lib
COPY ./src src
# COPY ./web-customizations web-customizations
RUN ant package

# Runtime layer
FROM tomcat:9.0-jdk21

LABEL org.opencontainers.image.description="CMS Platform web application"
LABEL org.opencontainers.image.source="https://github.com/rajkowski/cms-platform"
LABEL org.opencontainers.image.licenses="Apache"

COPY --from=builder target/cms-platform.war /usr/local/tomcat/webapps/ROOT.war
ENV CATALINA_OPTS="-XX:InitialRAMPercentage=10 -XX:MinRAMPercentage=50 -XX:MaxRAMPercentage=80 -XX:+ExitOnOutOfMemoryError"
EXPOSE 8080
HEALTHCHECK --interval=10s --timeout=5s --start-period=30s --retries=3 CMD curl -I -f --max-time 5 --header "X-Monitor: healthcheck" http://localhost:8080/api/liveness || exit 1
CMD ["catalina.sh", "run"]