Prepare Jenkins, Docker and Kubectl in CentOS 9

An Ansible playbook to prepare Jenkins server, Docker and Kubectl configuration in CentOS 9

Pre-requisites

Prepare an Ansible connection from the control node to the managed node using the Ansible setup document.

Prepare kubernetes cluster

If you are to maintain a Kubernetes cluster from the Jenkins server with kubectl, you can follow the instructions in the kubernetes-cluster-setup-playbook repository to create a cluster with a master and worker node.

Clone this repository

su - ansible
git clone https://github.com/mohammadrony/jenkins-docker-setup-playbook.git

Check ansible hosts file

Check hosts file for host-group and host-names with control plane and worker node host names. By default, it would work as follows

[admin]
admin-server

Run Ansible playbook

ansible-playbook playbook.yml

Start Jenkins service

jenkins_host="admin-server"
ssh ${jenkins_host} "sudo systemctl start jenkins"
ssh ${jenkins_host} "sudo systemctl status jenkins"

Browse Jenkins dashboard from browser

• Visit http://admin-server:8080 URL from local browser.
• Find the initial admin password from ansible control host's /home/ansible/jenkins-admintoken.txt file or Jenkins server host's /var/lib/jenkins/secrets/initialAdminPassword file.

Thank you.