One‑Click Automated Deployment of Spring Boot with Jenkins and Docker

This article provides a step‑by‑step guide to set up a one‑click automated deployment pipeline for a Spring Boot application using Docker and Jenkins on a CentOS 7 host.

Environment : CentOS 7 with Git (Gitee). The process includes installing Docker, installing Jenkins, configuring system plugins, creating a Jenkins job, testing, and running the application.

Install Docker – update yum, remove old versions, install required packages, add Docker repository, install Docker CE, start and enable the service, and verify with docker version.

Install Jenkins – run a Jenkins container, access http://{host_ip}:8080, unlock Jenkins by retrieving the initial admin password with cat /var/lib/jenkins/secrets/initialAdminPassword, install the recommended plugins, and create an admin user.

System configuration – install Maven Integration, Publish Over SSH, and Gitee plugins; configure Maven installation under “Global Tool Configuration”.

Create job – create a freestyle project, set the Git repository URL and credentials, add a Maven build step with goal clean install -Dmaven.test.skip=true, and save.

Test – trigger a build, view console output, and verify that a JAR is produced; check the workspace at /var/jenkins_home/workspace.

Run project – write a Dockerfile that uses JDK 8, copies the built JAR, exposes port 8888, and defines the entrypoint. In the Jenkins job add shell steps to stop/remove old containers, build the image with docker build -t zx-order ., and run it with docker run -d -p 8888:8888 --name zx-order zx-order:latest.

After the build finishes, verify the container is running with docker ps and access the application via http://{host_ip}:8888.