This project uses for 'articles' and 'web-api' a Java image with only open source components:
- OpenJ9 0.12.1
- OpenJDK 8u202-b08 from AdoptOpenJDK
- Open Liberty 19.0.0.9
Additionally zipkintracer is copied onto the image to support distributed tracing.
This is the used Dockerfile which uses multiple stages so that the image can be built on environments that don't have Java and Maven (or wrong versions) installed.
FROM maven:3.5-jdk-8 as BUILD
COPY src /usr/src/app/src
COPY pom.xml /usr/src/app
RUN mvn -f /usr/src/app/pom.xml clean package
FROM open-liberty:19.0.0.9-kernel-java11
ADD liberty-opentracing-zipkintracer-1.3-sample.zip /
RUN unzip liberty-opentracing-zipkintracer-1.2-sample.zip -d /opt/ol/wlp/usr/ \
&& rm liberty-opentracing-zipkintracer-1.2-sample.zip
COPY liberty/server.xml /config/
COPY --from=BUILD /usr/src/app/target/articles.war /config/dropins/
# This script will add the requested XML snippets, grow image to be fit-for-purpose and apply interim fixes
# https://github.com/WASdev/ci.docker
RUN configure.sh
EXPOSE 8080
Invoke the following commands to set up the Java based microservice 'articles':
$ cd $PROJECT_HOME
$ scripts/check-prerequisites.sh
$ scripts/delete-all.sh
$ scripts/deploy-articles-java-jee.sh
$ scripts/show-urls.sh
Invoke the curl command which is displayed as output of 'scripts/show-urls.sh' to get ten articles.
Check out the article Dockerizing Java MicroProfile Applications for more details.