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Steps to setup E2E deployment using Jenkins, Ansible, Docker Swarm

  • Clone the repo in the /home (make sure to clone it there, as we will be creating symlink assuming this) folder of the server and run jenkins-setup.sh
cd scripts
chmod +x jenkins-setup.sh
./jenkins-setup.sh

  • Go to localhost:8080 and follow the mentioned steps to create admin user and then install suggested plugins.

  • Go to Manage Jenkins -> Plugin Manager and install Copy Artifact

  • Run jenkins-jobs-setup.sh

cd scripts
chmod +x jenkins-job-setup.sh
./jenkins-job-setup.sh

  • If the project is hosted on GitHub we would need ssh to connect to GitHub, in that case switch to jenkins user su jenkins

  • Generate key-pair ssh-keygen

  • Add private key to Jenkins and public key to GitHub

  • Configure jobs to use the new credentials

  • On the jenkins server setup a local registry

docker run -d -p 5000:5000 --restart=always --name registry registry:2

Also, you'll need to add this registry address to insecure-registries on all nodes accessing it. Open/create file /etc/docker/daemon.json and add:

{
    "insecure-registries" : [ "x.x.x.x:5000" ]
}

where x.x.x.x is the IP of the node where registry is hosted.

  • Run the following and add jenkins ALL=(ALL) NOPASSWD: ALL at the end
sudo visudo

  • Install Hashicorp vault plugin. Login into jenkins user: su jenkins & then install using command: pip install hvac.

  • Add Vault token variables in Jenkins ....

  • Generate an ssh key-pair for jenkins user & add the public key to the developer's Github account which has access to all the private repos in use currently. Some pipelines do operations like git clone and they need access to git. Post adding the key, please also verify git is able to verify the public key using command ssh -T git@github.com