Dockerfile

FROM codeworksio/ubuntu:18.04-20180212

# SEE: https://github.com/docker-library/openjdk/blob/master/8-jdk/Dockerfile

ARG APT_PROXY
ARG APT_PROXY_SSL
ENV JAVA_VERSION="8u151" \
    JAVA_UBUNTU_VERSION="8u151-b12-1" \
    CA_CERTIFICATES_JAVA_VERSION="20170930" \
    JAVA_HOME="/java-home"

RUN set -ex; \
    \
    if [ -n "$APT_PROXY" ]; then echo "Acquire::http { Proxy \"http://${APT_PROXY}\"; };" > /etc/apt/apt.conf.d/00proxy; fi; \
    if [ -n "$APT_PROXY_SSL" ]; then echo "Acquire::https { Proxy \"https://${APT_PROXY_SSL}\"; };" > /etc/apt/apt.conf.d/00proxy; fi; \
    apt-get --yes update; \
    apt-get --yes install \
        openjdk-8-jdk=$JAVA_UBUNTU_VERSION \
        ca-certificates-java=$CA_CERTIFICATES_JAVA_VERSION \
    ; \
    ln -sT "/usr/lib/jvm/java-8-openjdk-$(dpkg --print-architecture)" $JAVA_HOME; \
    update-alternatives --get-selections | awk -v home="$(readlink -f $JAVA_HOME)" 'index($3, home) == 1 { $2 = "manual"; print | "update-alternatives --set-selections" }'; \
    /var/lib/dpkg/info/ca-certificates-java.postinst configure; \
    \
    rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/* /var/cache/apt/*; \
    rm -f /etc/apt/apt.conf.d/00proxy

### METADATA ###################################################################

ARG IMAGE
ARG BUILD_DATE
ARG VERSION
ARG VCS_REF
ARG VCS_URL
LABEL \
    org.label-schema.name=$IMAGE \
    org.label-schema.build-date=$BUILD_DATE \
    org.label-schema.version=$VERSION \
    org.label-schema.vcs-ref=$VCS_REF \
    org.label-schema.vcs-url=$VCS_URL \
    org.label-schema.schema-version="1.0"