Configure Jenkins 2.0 with Ansible - jenkins

Question

I am using Ansible for provision our servers, I installed the Jenkins 2.0 but it is becomeing with a startup configuration when I open the web UI. How can I do it with Ansible or shell or jenkins-cli. CentOS 7, Ansible 2.0.1.0.
So,
Installing Jenkins 2.0 from http://pkg.jenkins-ci.org/redhat-rc/jenkins-2.0-1.1.noarch.rpm rpm.
Install java with yum.
Service start jenkins.
Open 192.168.46.10:8080, which is opening the Jenkins.
In Web UI adding the initial admin password.
In web UI select and install plugins.
In web UI create a new admin user.
The 5,6,7 points are all the startup config of the new Jenkins. I haven't idea how we can install it autmatically.
Edit 1:
The 1,2,3 point is already done, just I didn't share because it is not necessary, because I only need an advice how can I configure the Jenkins. But now I add it to my question.
---
- name: Jenkins - install | Install java
yum: name=java state=installed
- name: Jenkins - install | Install Jenkins 2.0
yum: pkg=http://pkg.jenkins-ci.org/redhat-rc/jenkins-2.0-1.1.noarch.rpm state=installed
- name: Jenkins - install | Start and enable Jenkins 2.0
service: name=jenkins state=started enabled=yes

Answer 1

You can create an initialization script (in groovy) to add an admin account.
Script should be present in $JENKINS_HOME/init.groovy.d/*.groovy.
See Jenkins CI Wiki for more details.
Here's an example.
security.groovy.j2 file:
#!groovy
import java.util.logging.Level
import java.util.logging.Logger
import hudson.security.*
import jenkins.model.*
def instance = Jenkins.getInstance()
def logger = Logger.getLogger(Jenkins.class.getName())
logger.log(Level.INFO, "Ensuring that local user '{{ jenkins.admin_username }}' is created.")
if (!instance.isUseSecurity()) {
logger.log(Level.INFO, "Creating local admin user '{{ jenkins.admin_username }}'.")
def strategy = new FullControlOnceLoggedInAuthorizationStrategy()
strategy.setAllowAnonymousRead(false)
def hudsonRealm = new HudsonPrivateSecurityRealm(false)
hudsonRealm.createAccount("{{ jenkins.admin_username }}", "{{ jenkins.admin_password }}")
instance.setSecurityRealm(hudsonRealm)
instance.setAuthorizationStrategy(strategy)
instance.save()
}
How to use in Ansible playbook:
- name: Create initialization scripts directory
file: path={{ jenkins.home }}/init.groovy.d
state=directory
owner=jenkins
group=jenkins
mode=0775
- name: Add initialization script to setup basic security
template: src=security.groovy.j2
dest={{ jenkins.home }}/init.groovy.d/security.groovy
I was inspired by this GitHub reposiotry.

Answer 2

I found a solution, this is turn off the setup wizard, after it I was able to change config files.
- name: Jenkins - configure | Turn off Jenkins setup wizard
lineinfile: dest=/etc/sysconfig/jenkins regexp='^JENKINS_JAVA_OPTIONS=' line='JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Djenkins.install.runSetupWizard=false"'
notify: restart jenkins

Answer 3

The above solution didn't work for me but give me hint and this is the solution that worked for me on Ubuntu:
- name: Configure JVM Arguments
lineinfile:
dest: /etc/default/jenkins
regexp: '^JAVA_ARGS='
line: 'JAVA_ARGS="-Djava.awt.headless=true -Djenkins.install.runSetupWizard=false"'
notify:
- Restart Jenkins

Answer 4

On Ubuntu 16.04 with Jenkins installed using apt-get, this works:
- name: "Turn off Jenkins setup wizard"
lineinfile:
dest: /etc/init.d/jenkins
regexp: '^JAVA_ARGS='
line: 'JAVA_ARGS="-Djava.awt.headless=true -Djenkins.install.runSetupWizard=false"'
insertbefore: '^DAEMON_ARGS='
notify: restart jenkins
- name: restart jenkins
service: name=jenkins state=restarted
You will still have to setup the security though!