Jenkins

Basics

You develop Pipelines, the main object in Jenkins

Pipelines have 3 basic steps: build step, test step, and deploy (or "deliver") step.

Get Started

Installing

DigitalOcean guide to installing Jenkins on Ubuntu 16.04: https://www.digitalocean.com/community/tutorials/how-to-install-jenkins-on-ubuntu-16-04

wget -q -O - https://pkg.jenkins.io/debian/jenkins-ci.org.key | sudo apt-key add -
echo deb https://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list
sudo apt-get -y update
sudo apt-get -y install jenkins

Starting

Jenkins runs as a service, so start it like this:

sudo systemctl start jenkins

Check its status like this:

sudo systemctl status jenkins

Should see something like this:

Output
● jenkins.service - LSB: Start Jenkins at boot time
  Loaded: loaded (/etc/init.d/jenkins; bad; vendor preset: enabled)
  Active:active (exited) since Thu 2017-04-20 16:51:13 UTC; 2min 7s ago
    Docs: man:systemd-sysv-generator(8)

Accessing

You should be able to access Jenkins at port 8080. (http://your-ip:8080)

If it is not available, you may nee to open port 8080 using your firewall (ufw or iptables or other).

To get your Jenkins admin secret, run:

sudo cat /var/lib/jenkins/secrets/initialAdminPassword

AWS

Spin up an AWS node.

Tasks:

IF setting up SSL:

• Open firewall port 8081 (security group)
• Set up nginx on the front end
• Obtain an SSL certificate for the domain that points to your server (you need a domain, not a bare IP address)
• Yes this is a pain in the ass. Good luck. You can find domains for as cheap as $0.40/month on Namecheap.com
• LetsEncrypt is how you get your certificate
• See https://git.charlesreid1.com/charlesreid1/certbot
• Set up nginx to reverse-proxy to port 8081

Otherwise:

• Open firewall port 8080 (security group)

Okay, now on to the rest:

• Set up nginx on the frontend for SSL
• Install Jenkins
• Access Jenkins
• Run a basic Python workflow

Links

Jenkins tutorial on python build workflows with Jenkins: https://jenkins.io/doc/tutorials/build-a-python-app-with-pyinstaller/

Guide to setting up a Jenkins build server on AWS: https://aws.amazon.com/getting-started/projects/setup-jenkins-build-server/