Introduction to Jenkins X - a beginner's guide

© 2020 CloudBees, Inc. All Rights Reserved.© 2020 CloudBees, Inc. All Rights Reserved.
Introduction to Jenkins X

© 2020 CloudBees, Inc. All Rights Reserved. 2
Who am I?
• Long-time contributor to Jenkins and Jenkins X
• Engineer at CloudBees, working on Jenkins X
• @abayer on Twitter

Agenda
• What is Jenkins X
• Jenkins X Capabilities Overview
• Is Jenkins X for me?
• Next Steps

What is Jenkins X?

What is Jenkins X?
First, Jenkins X is NOT Jenkins

What is Jenkins X?
Completely new codebase
Zero code from Jenkins project
Entirely different architecture
Solving different problems, in different
ways

What is Jenkins X?
Jenkins X is Jenkins’ spiritual counterpart
for the world of cloud-native CD
The concept of pipelines and extensibility
is what they have in common. That is it!

What is Jenkins X?
Initially Jenkins X used static Jenkins
masters to power its pipelines.
That is no longer the case...

What is Jenkins X?
Today Tekton is the pipeline engine
behind the scenes in Jenkins X

0
What is Jenkins X?
Jenkins X is an opinionated cloud native CI/CD platform for
Kubernetes

1
Jenkins X Capabilities
Where can I run Jenkins X?

2
Install via CLI
# create a k8s cluster in GKE, skip
Jenkins X install
>$ jx create cluster gke
--skip-installationCreate k8s cluster

3
Install via CLI
# install Jenkins X using jx boot
# based on the values of
jx-requirements.yaml file
>$ jx boot
Install using JX Boot

© 2020 CloudBees, Inc. All Rights Reserved.14
jx-requirements.yaml
autoUpdate:
enabled: false
schedule: ""
bootConfigURL:
https://github.com/cloudbees/cloudbees-jenkin
s-x-boot-config.git
cluster:
azure: {}
clusterName: coolboot
environmentGitOwner: jenkins-oscar
environmentGitPublic: true
gitKind: github
gitName: github
gitServer: https://github.com
namespace: jx
project: jx-development
provider: gke
registry: gcr.io
zone: us-west1-a
environments:
- ingress:

Supported Git Providers
• GitHub
• GitHub Enterprise (Preview)
• GitLab (Preview)
• BitBucket Server (Preview)

Project Templates
AKA
QuickStarts
...and more

Creating a QuickStart
# create a quickstart for a nodejs app
>$ jx create quickstart
--language=javascript --name=carsweb

Import an existing app from source ctrl
# import an existing app from github
>$ jx import
--url https://github.com/jenkins-oscar/skiapp.git

Build Packs
• We give you canned Pipelines for many scenarios
• We use Draft for language detection auto-select build pack
• You can extend and modify on top of the build pack
A quickstart for your pipeline
or pipeline template

Pipelines in Jenkins X
• Pipelines are declarative (YAML)
• Each stage runs on its own ephemeral pod
• PR vs. Release Pipelines
• Dozens of pre-configured builder images

Triggering Pipelines
• Prow / Lighthouse
• Via ChatOps PR comment “/test this” or “/approve”
• GitHub Statuses
Triggered via different events

Monitor Pipelines
Several methods to monitor
Pipeline activity
# get build logs for a pipeline
>$ jx get build logs
# get pipeline activity for an app
>$ jx get activity -f appname
The Jenkins X UI

Monitor Pipelines
Install the UI
# Install the UI
>$ jx add app jx-app-ui --version=0.1.36
# Launch UI in browser
>$ jx ui -p 9845

Monitor Pipelines
The Jenkins X UI
Projects Page

Monitor Pipelines
The Jenkins X UI
Builds Page

Monitor Pipelines
The Jenkins X UI
Build Log Page

Monitor Pipelines
The Jenkins X UI
Environments Page

Preview Environments
PMs, Designers view app changes in
temporary live environment

ChatOps (
Preview Env Built)
Prow / Lighthouse listens to
Git Webhooks.

ChatOps (commands)
Commands like:
/approve
/lgtm
/test this

GitOps
GitOps is an iteration of a DevOps
process designed for cloud native
with a focus on Kubernetes
• Source Control is “Single Source of Truth”
• Env changes via PR trigger pipelines to
execute changes
• Jenkins X uses GitOps to manage itself
• Recover easily from disaster

DevPods
Develop in the cloud.
Avoid the “works on my laptop”
and not in production issues.
• Edit your app all within a Kubernetes Pod
• Use your own desktop IDE
• Use web based IDE

3
Is Jenkins X for me?
If you are deploying microservices, you
will likely use kubernetes for
orchestration. Are you a k8s, Helm,
KSync, Skaffold, Chartmuseum expert?
Jenkins X = faster deployments
abstracts you from knowing all the little
details of Kubernetes

4
Is Jenkins X for me?
Kubernetes is complex, and takes time to learn.
With Jenkins X you do NOT need to be an expert in Kubernetes,
Helm and other technologies to start delivering app features
today!

Next Steps
Kubernetes Workspace
#jenkins-x-user
#jenkins-x-dev
@jenkinsxio
Subscribe
Jenkins X Newsletter:
Twitter:
Slack:
jenkins-x.ioWeb:
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X Distribution:

Introduction to Jenkins X - a beginner's guide

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