如果查看 centos/wildly 的官方仓库,你会发现类似
RUN yum -y install tar java-1.7.0-openjdk-devel
wildfly/centos7/Dockerfile
所以你不需要修改现有的镜像,只需构建你自己的镜像,在 Dockerfile 中更新 JDK 版本,构建它并从你自己的镜像运行容器。
创建您自己的 Dockerfile 并运行以下命令。
docker build --tag=centos/wildfly-admin-jdk-1.8 .
docker run -it -p 9990:9990 centos/wildfly-admin-jdk-1.8
这里是 JDK-1.8.0 的 Dockerfile
# Use latest Fedora image as the base
FROM centos:latest
MAINTAINER http://www.centos.org
LABEL Vendor="CentOS"
LABEL License=GPLv2
LABEL Version=8.2.0.Final
# Update base image
RUN yum -y update && yum clean all
# xmlstarlet is useful when modifying attributes/elements
# saxon can be used to execute configuration transformation using XSLT
# augeas is a great tool to edit any configuration files (XML too)
# bsdtar can be used to unpack zip files using pipes
RUN yum -y install tar java-1.8.0-openjdk-devel saxon \
augeas bsdtar shadow-utils && yum clean all
# Set the WILDFLY_VERSION env variable
ENV WILDFLY_VERSION 8.2.0.Final
# Create the wildfly user and group
RUN groupadd -r wildfly -g 433 && useradd -u 431 -r -g wildfly -d /opt/wildfly -s /sbin/nologin -c "WildFly user" wildfly
# Create directory to extract tar file to
RUN mkdir /opt/wildfly-$WILDFLY_VERSION
# Add the WildFly distribution to /opt, and make wildfly the owner of the extracted tar content
RUN cd /opt && curl http://download.jboss.org/wildfly/$WILDFLY_VERSION/wildfly-$WILDFLY_VERSION.tar.gz | tar zx && chown -R wildfly:wildfly /opt/wildfly-$WILDFLY_VERSION
# Make sure the distribution is available from a well-known place
RUN ln -s /opt/wildfly-$WILDFLY_VERSION /opt/wildfly && chown -R wildfly:wildfly /opt/wildfly
# Set the JBOSS_HOME env variable
ENV JBOSS_HOME /opt/wildfly
# Expose the ports we're interested in
EXPOSE 8080 9990
# Run everything below as the wildfly user
USER wildfly
# Set the default command to run on boot
# This will boot WildFly in the standalone mode and bind to all interface
CMD ["/opt/wildfly/bin/standalone.sh", "-c", "standalone-full.xml", "-b", "0.0.0.0", "-bmanagement", "0.0.0.0"]