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https://github.com/carlossg/kubernetes-jenkins
Kubernetes examples running Jenkins master and slaves
https://github.com/carlossg/kubernetes-jenkins
Last synced: about 1 month ago
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Kubernetes examples running Jenkins master and slaves
- Host: GitHub
- URL: https://github.com/carlossg/kubernetes-jenkins
- Owner: carlossg
- License: apache-2.0
- Created: 2014-11-18T16:43:15.000Z (almost 10 years ago)
- Default Branch: master
- Last Pushed: 2017-04-17T12:57:33.000Z (over 7 years ago)
- Last Synced: 2023-11-07T15:21:06.968Z (about 1 year ago)
- Size: 40 KB
- Stars: 147
- Watchers: 19
- Forks: 71
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
Running Jenkins master and slaves in a Kubernetes cluster
=========================================================
Kubernetes examples running Jenkins master and slaves
Creating a cluster
==================
Local with Docker Compose
-------------------------
A local testing cluster with one node can be created with Docker Compose
```
docker-compose up
```
When using boot2docker or Docker Engine with a remote host, the remote Kubernetes API can be exposed
with `docker-machine ssh MACHINE_NAME -L 0.0.0.0:8080:localhost:8080` or `boot2docker ssh -L 0.0.0.0:8080:localhost:8080`
More info
* [Docker CookBook examples](https://github.com/how2dock/docbook/tree/master/ch05/docker)
* [Kubernetes Getting started with Docker](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-guides/docker.md)
Google Compute Engine
---------------------
```
export KUBERNETES_HOME=~/kubernetes
export KUBERNETES_PROVIDER=gce
export KUBERNETES_NUM_MINIONS=2
export KUBE_GCE_ZONE=us-central1-a
$KUBERNETES_HOME/cluster/kube-up.sh
```
Creating the pods and services
==============================
GKE
-------
```
gcloud compute disks create --size 20GB jenkins-data-disk
kubectl get nodes
kubectl create -f jenkins-master-gke.yml
kubectl get rc
kubectl get pods
kubectl create -f service-gke.yml
kubectl get services
kubectl create -f jenkins-slaves.yml
kubectl get rc
kubectl get pods
kubectl scale replicationcontrollers --replicas=2 jenkins-slave
kubectl describe services/jenkins
gcloud compute forwarding-rules list
```
AWS
-------
This assumes a working kubernetes installation. I generate mine with [kops](https://github.com/kubernetes/kops).
If `kubectl cluster-info` gives you output about the location of the API server, you are likely in pretty good shape.
Next, create the working volume for jenkins:
`aws ec2 create-volume --availability-zone us-east-1a --size 20 --volume-type gp2
You'll get a response back that looks something like this:
```
{
"AvailabilityZone": "us-east-1a",
"Encrypted": false,
"VolumeType": "gp2",
"VolumeId": "vol-002d2b99000000000", # Write this value down
"State": "creating",
"Iops": 100,
"SnapshotId": "",
"CreateTime": "2016-12-24T17:39:34.725Z",
"Size": 20
}
```
Edit `jenkins-master-aws.yml` and put the VolumeID in the volumeID field`.
```
kubectl create -f jenkins-master-aws.yml
kubectl get rc
kubectl get pods
kubectl create -f service-aws.yml
kubectl get services
kubectl describe service jenkins
kubectl create -f jenkins-slaves.yml
kubectl get rc
kubectl get pods
kubectl scale replicationcontrollers --replicas=2 jenkins-slave
kubectl describe services/jenkins
```
These instructions get you a publically accessible Jenkins dashboard at the load balancer specified in `kubectl describe service jenkins`. This is likely not ideal for a production environment for a number of reasons to be explored at some future date.
Vagrant
-------
```
kubectl get nodes
kubectl create -f jenkins-master-vagrant.yml
kubectl get rc
kubectl get pods
kubectl create -f service-vagrant.yml
kubectl get services
kubectl describe services/jenkins
kubectl create -f jenkins-slaves.yml
kubectl get rc
kubectl get pods
kubectl scale replicationcontrollers --replicas=2 jenkins-slave
```
Rolling update
==============
```
kubectl rolling-update jenkins-slave --update-period=10s -f replication-v2.yml
```
Tearing down
============
```
kubectl stop replicationcontrollers jenkins-slave
kubectl stop replicationcontrollers jenkins
kubectl delete services jenkins
$KUBERNETES_HOME/cluster/kube-down.sh
```
Demo
====
Kubernetes cluster up
[](https://asciinema.org/a/18161)
Jenkins master and slaves provisioning
[](https://asciinema.org/a/18162)
Kubernetes cluster teardown
[](https://asciinema.org/a/18163)