Assembling a continuous integration service for a Django project on Jenkins shows how to set up a Ubuntu instance with a Jenkins server that'll build a Django project.
My book on deploying Python web applications walks through every step of setting up a Jenkins project with a WSGI application to enable continuous delivery. Take a look if you're not grokking all of the steps provided in these other blog posts.
Revisiting Docker and Jenkins is a fantastic series of posts that explains how Riot Games combines Jenkins and Docker to test their back end services.
Setting up Jenkins as a continuous integration server for Django is another solid tutorial that also shows how to send email notifications as part of the build process.
If you're running into difficulty adding an SSH key to your Jenkins system account so you can connect to another server or Git repository this blog post on connecting Jenkins with Git to get the steps to solve that problem.
Securing Jenkins is the landing page for Jenkins security. If you're deploying your own instance, you'll need to lock it down against unauthorized users.
Updating the GOV.UK Continuous Integration environment describes the configuration improvements one infrastructure team made to Jenkins, where they enabled jenkinsfiles to store CI data within project repositories instead of having to handle the setup through the Jenkins user interface. The team also published their Puppet files for building Jenkins infrastructure.
Jenkins configuration as code details the launch of a new Jenkins tool for programmatically configuring Jenkins so you can automate the setup of this part of your deployment infrastructure. The post goes into the motivations behind creating another tool for code configuration when other similar libraries already exist.
Automated servers and deployments with Ansible & Jenkins covers using Ansible for automating deployments and handling the coordination via Jenkins builds.
Building GitHub Pull Requests using Jenkins Pipelines explains how to use Jenkins 2.0 with Pipelines to create builds that run in Docker containers off of new GitHub pull requests.
Deploy web apps with the Ansible configuration management tool.