Automate Build Process
Using Jenkins and Git
These days automating the builds is a commonly observed practice, not only it saves efforts and time of a developer, but takes care of updating your server with the latest available code .
Let’s hit our innovation engine this time to make Jenkins team up with Git repo.
Plan of Action -
1. Developer check-ins the code, in Git Repo.
2. Jenkins listens to the event occurred.
3. Jenkins initiates the build and creates a war (in this example).
4. The war is later deployed onto the Apache Tomcat server running.
A simple project with a jsp - helloWorld.jsp.
<h3 style="color: blue"> Message from the project</h3>
2. Tomcat installed. Here I have installed it at this location - /home/jenkins/apache-tomcat-7.0.77, on my Fedora OS.
Start the tomcat server, for this example we have selected port 8081.
3. Download jenkins and make it up and running.
For Fedora, I used the following commands -
sudo dnf install jenkins // installs
sudo service jenkins start / stop // kicks on/off
sudo chkconfig jenkins on // to monitor
Time to execute -
Once you successfully install Jenkins locally, please refer to the config changes required on the Jenkins dashboard @ localhost:8080. In case you are stuck anywhere take help of the below screenshot. It has the config I have used for this example.
Now whenever any commit is made in the git repo, the build will be triggered, and latest war will be deployed on the Tomcat server.
Please note - In case tomcat requires a user to be created, as the below line in - apache-tomcat-7.0.77/conf/tomcat-users.xml
<user username="admin" password="admin" roles="manager-script"/>
So here you go, tell at your workplace that you will take care of automating the builds, and enjoy :)
Happy coding !!