Create a Service Account to access Jenkins with cli

• Step 1: Create a service user account in the Servana Identity Service admin console. 

• Step 2: Log in to Jenkins with the service account and create an API Token.

• Step 3: Create a role in Jenkins for the service account with the least privileges principle. Manage Jenkins -> Manage Roles.

• Step 4: Assign the new role created in Step 3 to the service account via the assign role menu in Jenkins. Assign Role Link.

• Step 5: Execute the Jenkins cli with the API Token and service user login information.

A link has been kindly shared of a resource that wraps the Jenkins CLI in a shell script. Here is a link to a gist which makes this process easier.

#!/bin/bash
# Jenkins-cli wrapper see. https://www.jenkins.io/doc/book/managing/cli/
#
# .installation:
#    curl -o ~/bin/jcli-wrapper 
#    chmod +x  ~/bin/jcli-wrapper
#
# .usage:
#    jcli-wrapper Jenins-URL file-with-credentilas
#
# .example:
#    jcli-wrapper https://jenkins.example.com $(realpath ~/.rcjenkins/jenkins) list-jobs
#
# .tip:
#   you can create own wrapper with pre-defined values like:
#   #file: ~/bin/jcli
#   #!/bin/bash
#   jcli-wrapper https://jenkins.example.com $(realpath ~/.rcjenkins/jenkins) $@
#
# .note:
#   content of  ~/.rcjenkins/jenkins is:
#   {username}:{token|password}
#   user:123456
jenkins_host=$1
shift 1
passwd_file=$1
shift 1

if [ ! -f ~/bin/jenkins-cli.jar ]
then
    mkdir -p ~/bin
    curl -o ~/bin/jenkins-cli.jar $jenkins_host/jnlpJars/jenkins-cli.jar
fi

java -jar ~/bin/jenkins-cli.jar -s ${jenkins_host} -webSocket -auth @${passwd_file} $@