FROM alpine:latest
LABEL description="Jenkins"
LABEL maintainer="racken@one27.cf"
LABEL notes="Get initial admin password by docker exec -it <container-id> and cat /root/.jenkins/secrets/initialAdminPassword"
LABEL java-version="openjdk11"
LABEL jenkins-version="2.222.3"
LABEL exposed-port="8080"
LABEL jenkins-path="/jenkins"
ENV container docker
RUN apk add openjdk11 wget openjdk11-jre-headless ttf-dejavu; mkdir /opt/tomcat
WORKDIR /opt/tomcat
RUN wget -q -O- http://ftp.cuhk.edu.hk/pub/packages/apache.org/tomcat/tomcat-9/v9.0.34/bin/apache-tomcat-9.0.34.tar.gz | tar zxf - --strip-components=1
RUN rm -rf /opt/tomcat/webapps/ROOT
RUN wget -q -O /opt/tomcat/webapps/jenkins.war http://mirrors.jenkins.io/war-stable/latest/jenkins.war
ENV JAVA_HOME="/usr"
ENV JAVA_OPTS="-Djava.awt.headless=true -Xmx2g -Dhudson.DNSMultiCast.disabled=true -Duser.timezone=Asia/Hong_Kong"
EXPOSE 8080
CMD ["/opt/tomcat/bin/catalina.sh", "run"]