Elements of Dockerfile OpenShift Containers amp Kubernetes Part12 RedHat EX180 EX288
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=BSFTyUUHl9k
Correct way of writing Dockerfile (OpenShift Containers Kubernetes Part-12) • FROM, ADD, RUN, WORKDIR, ENV, EXPOSE, USER, CMD, ENTRYPOINT • CMD vs ENTRYPOINT • ADD vs COPY • Architecture of Dockerfile • Dockerfile layers • • ---- Dockerfile used to explain concept ---- • dockerfile to build image for JBoss EAP 6.4 • start from rhel 7.7 • FROM ubi7/ubi:7.7 • file author / maintainer • MAINTAINER Tejendra Rana [email protected] • update OS • RUN yum -y update \\ • yum -y install sudo openssh-clients telnet unzip java-1.8.0-openjdk-devel \\ • yum clean all • enabling sudo group • enabling sudo over ssh • RUN echo '%wheel ALL=(ALL) NOPASSWD: ALL' #62; #62; /etc/sudoers \\ • sed -i 's/.*requiretty$/Defaults !requiretty/' /etc/sudoers • add a user for the application, with sudo permissions • RUN useradd -m jboss ; echo jboss: | chpasswd ; usermod -a -G wheel jboss • create workdir • RUN mkdir -p /opt/rh • WORKDIR /opt/rh • install JBoss EAP 6.4.0 • ADD jboss-eap-6.4.0.zip /tmp/jboss-eap-6.4.0.zip • RUN unzip /tmp/jboss-eap-6.4.0.zip • set environment • ENV JBOSS_HOME /opt/rh/jboss-eap-6.4 • create JBoss console user • RUN $JBOSS_HOME/bin/add-user.sh admin admin@2016 --silent • configure JBoss • RUN echo JAVA_OPTS=\\ \\$JAVA_OPTS -Djboss.bind.address=0.0.0.0 -Djboss.bind.address.management=0.0.0.0\\ #62; #62; $JBOSS_HOME/bin/standalone.conf • set permission folder • RUN chown -R jboss:jboss /opt/rh • JBoss ports • EXPOSE 8080 9990 9999 • start JBoss • ENTRYPOINT $JBOSS_HOME/bin/standalone.sh -c standalone-full-ha.xml • deploy app • ADD myapp.war $JBOSS_HOME/standalone/deployments/ • USER jboss • CMD 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