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Dockerfile
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# s2i-java
FROM openshift/base-centos7
# TODO: Put the maintainer name in the image metadata
LABEL maintainer="Dan Shao <shaodan.cn@gmail.com>"
# TODO: Rename the builder environment variable to inform users about application you provide them
# ENV BUILDER_VERSION 1.0
# TODO: Set labels used in OpenShift to describe the builder image
LABEL io.k8s.description="Platform for building(Maven Wrapper, Gradle Wrapper) and running Java applications " \
io.k8s.display-name="Java S2I Builder" \
io.openshift.expose-services="8080:http" \
io.openshift.tags="builder,java,s2i,maven,gradle"
# TODO: Install required packages here:
# RUN yum install -y ... && yum clean all -y
# Install Java
RUN INSTALL_PKGS="java-1.8.0-openjdk java-1.8.0-openjdk-devel" && \
yum install -y $INSTALL_PKGS && \
rpm -V $INSTALL_PKGS && \
yum clean all -y && \
mkdir -p /opt/s2i/destination
# TODO (optional): Copy the builder files into /opt/app-root
# COPY ./<builder_folder>/ /opt/app-root/
# TODO: Copy the S2I scripts to /usr/libexec/s2i, since openshift/base-centos7 image
# sets io.openshift.s2i.scripts-url label that way, or update that label
COPY ./s2i/bin/ /usr/libexec/s2i
# TODO: Drop the root user and make the content of /opt/app-root owned by user 1001
RUN chown -R 1001:1001 /opt/app-root
# This default user is created in the openshift/base-centos7 image
USER 1001
# TODO: Set the default port for applications built using this image
EXPOSE 8080
# TODO: Set the default CMD for the image
CMD ["/usr/libexec/s2i/usage"]