Jenkins with GIT

Jenkins provides us with various options in building the code. On the other hand, git provides us with the Source code management system. Jenkins provides us with various plug-ins in dealing with various repository systems. In this article we will see how we can configure Jenkins with the local Git Repository System.

This article will explain you on how to create a maven web application and use the git repository. The final step is to use the Jenkins with Git in building and packing into a war file.

1) Create a directory SampleTest

2) Inside the sampleTest , run the maven web application command as,

mvn archetype:generate -DgroupId=com.git.testing -DartifactId= sampleTest -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false

[root@vx111a testing]# git status

# On branch master

#

# Initial commit

#

# Untracked files:

#   (use "git add <file>..." to include in what will be committed)

#

#       sampleTest /

nothing added to commit but untracked files present (use "git add" to track) 

[root@vx111a testing]# ll

total 0

drwxr-xr-x. 3 root root 30 Dec  3 14:47 sampleTest

3) Git add and commit

[root@vx111a testing]# git add .

[root@vx111a testing]# git status

# On branch master

#

# Initial commit

#

# Changes to be committed:

#   (use "git rm --cached <file>..." to unstage)

#

#       new file:   sampleTest /pom.xml

#       new file:   sampleTest /src/main/webapp/WEB-INF/web.xml

#       new file:   sampleTest /src/main/webapp/index.jsp

#

[root@vx111a testing]# git commit -m "Jenkins Testing with Local Repo"

[master (root-commit) 551c28c] Jenkins Testing with Local Repo

 3 files changed, 33 insertions(+)

 create mode 100644 sampleTest /pom.xml

 create mode 100644 sampleTest /src/main/webapp/WEB-INF/web.xml

 create mode 100644 sampleTest /src/main/webapp/index.jsp

Now if we check the git status, we can see the no untracked files.

[root@vx111a testing]# git status

# On branch master

nothing to commit, working directory clean

Configuring Jenkins

Once the maven application is done and git is configured, the next step is configure local git to jenkins in such a way that the jenkins build the locally developed code.

1) Download the Git-plugin using the manage Jenkins in the jenkins Web. Select the Manage Plug-in tab, go to the Available section and search for the GIT plugin. Once Obtained , check the plugin and click "Download now and install after restart"

2) The Installation goes with the plug-in installation and restart of the Jenkins

3) Now we will see how we use the installed plug-in along with local git repository to build the maven web application. For this choose the new Item and check for the "Maven project" . Give a Name to the item and click ok.

4) In the next page of the build item,  there are certain configurations that needs to be done.

Provide the Git Executable location

Provide the Git repository user name and Email Details

Now this is the important part, For building the code from our local git repository and build the code we need to specify the path to the local Git repo as file:// protocol like this:

file:///home/ay/dev/projects/my_new_project

Now for our project we need to configure the Git repository details as, 

 If you see the Path of the local Git repository is "file:///work/SampleTest".

Provide the Local Git Credentials. This is one of the important Step in getting the source code from the local Git repository.

Click on the Add credentials under the Repositories in the above screen and provide the credentials that we are using for the local repository

Now once the changes are done run the Build now command and see the Console output to get the war file generation