Create groovy scripts to install any Jenkins pre-reqs such as plugins and credentials.

To create/add a new credential:

• Create a groovy script to create a specific credential, exemple: https://github.com/fheng/jenkins-bob-builder/blob/master/scripts/add_ssh_credentials.groovy
• Invoke the new script in https://github.com/fheng/jenkins-bob-builder/blob/master/scripts/configure_jenkins.sh

Some plugins that may need to be installed:

• android-signing
• xcode-plugin