Jenkins builds Docker images and pushes them to Harbor warehouse

Dockerfile
pom.xml
Jenkins Configuration

The spring boot project uses Jenkins to build a Docker image, push it to the harbor repository, start the container, and then pull the image to the local running container.

Dockerfile

Location: in the root directory, at the same level as src

FROM java:8
 # Author: MAINTAINER zhaoyc
VOLUME /tmp
#ARG JAR_FILE
#Add the jar package to the container and rename it to app.jar
ADD target/*.jar app.jar
RUN bash -c 'touch /app.jar'
ENV TZ=Asia/Shanghai
#RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
EXPOSE 81
#CMD ["-jar", "/app.jar"] "nohup" "&"
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

pom.xml

To specify the Maven version number as 1.4.2, other versions have not been tested, otherwise the main-class cannot be found

<plugins>
 <!-- mavn jar package startup plug-in -->
	<plugin>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-maven-plugin</artifactId>
		<version>1.4.2.RELEASE</version>
	</plugin>
</plugins>

Jenkins Configuration

System settings configuration docker – need to install Docker plugin

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Create a new Maven project configuration parameter build

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Project git repository configuration

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mvn build buile configuration

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Build the Docker image and push it to the repository configuration

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Execute the script after pushing to the repository

#!/bin/bash
#IMAGE=${module_filename}
#TAG=${Tag}
IMAGE=$1
TAG=$2
PULL_IMAGE=192.168.1.100:81/project/${IMAGE}:${TAG}
# Calculate subtraction and output with 0 in front of the decimal point, such as 0.3-0.1=0.2
CURRENT_IAMGE=`echo "$TAG - 0.1" | bc | awk '{printf "%.1f", $0}'`

echo '================Start logging into Harbor warehouse================'
docker login http://192.168.1.100:81 -u admin -p Harbor12345

if [ $? -eq 0 ]; then
    echo '================Login successful================='
else
    echo '================Login failed================='
    return 1
fi

echo '================Start pulling image================'
docker pull ${PULL_IMAGE}
echo '================End of pulling image================'

# Update container operation echo '================Stop running the image================'
docker stop ${IMAGE}_${CURRENT_IAMGE}
echo "wait 10 seconds"
sleep 10

echo '================Start starting mirror================'
#if [ ${IMAGE} == "java-demo" ]; then
# docker run -d --name ${IMAGE}_${TAG} -p 9001:9001 ${PULL_IMAGE}
#elif [ ${IMAGE} == "spring-cloud-eureka-client-demo" ]; then
# docker run -d --name ${IMAGE}_${TAG} -p 9012:9012 ${PULL_IMAGE}
#fi
docker run -d --name ${IMAGE}_${TAG} -p 9001:9001 ${PULL_IMAGE}
if [ $? -eq 0 ]; then
    echo '================Mirroring started successfully================'
else
    echo '================Mirror startup failed================'
    return 1
fi

This is the end of this article about how Jenkins builds Docker images and pushes them to the Harbor repository. For more information about how Jenkins builds Docker images, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future!

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