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https://github.com/etiennetremel/kubernetes-nginx-multisite-example
Example of a multisite cluster using Kubernetes, Docker and NGINX
https://github.com/etiennetremel/kubernetes-nginx-multisite-example
Last synced: about 19 hours ago
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Example of a multisite cluster using Kubernetes, Docker and NGINX
- Host: GitHub
- URL: https://github.com/etiennetremel/kubernetes-nginx-multisite-example
- Owner: etiennetremel
- Created: 2015-11-27T20:02:14.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2015-11-27T21:20:28.000Z (almost 9 years ago)
- Last Synced: 2023-03-23T02:02:20.765Z (over 1 year ago)
- Language: Shell
- Size: 7.81 KB
- Stars: 8
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Kubernetes NGINX multisite cluster
==================================
An NGINX instance used as a reverse proxy dispatch traffic to the corresponding Pod via service discovery.
Services should be created before the Proxy replication controller.
```
PUBLIC IP
|
|
+--------------------------------v--------------------------------+
| K8S CLUSTER | |
| +------------v------------+ |
| | SERVICE PROXY HTTPS | |
| +-------------------------+ |
| +-------------------------+ |
| | REPLICATION CONTROLLER | |
| | | |
| | POD POD | |
| | +---------+ +---------+ | |
| | | PROXY | | PROXY | | |
| | | NGINX | | NGINX | | |
| | +---------+ +---------+ | |
| +-------------------------+ |
| | | |
| +-----------------------v---+ +---v-----------------------+ |
| | SERVICE SITE ONE HTTP | | SERVICE SITE TWO HTTP | |
| +---------------------------+ +---------------------------+ |
| +---------------------------+ +---------------------------+ |
| | REPLICATION CONTROLLER | | REPLICATION CONTROLLER | |
| | | | | |
| | POD POD | | POD POD | |
| | +----------+ +----------+ | | +----------+ +----------+ | |
| | | SITE ONE | | SITE ONE | | | | SITE TWO | | SITE TWO | | |
| | | NGINX | | NGINX | | | | NGINX | | NGINX | | |
| | +----------+ +----------+ | | +----------+ +----------+ | |
| +---------------------------+ +---------------------------+ |
| |
+-----------------------------------------------------------------+
```
### Getting started
##### 1. Run a Kubernetes cluster locally:
Make sure to have access to GCloud container registry, images will be pushed on their container registry.
###### a. Install dependencies, run cluster
[https://github.com/kubernetes/kubernetes/blob/master/docs/getting-started-guides/locally.md](https://github.com/kubernetes/kubernetes/blob/master/docs/getting-started-guides/locally.md)
Install necessary dependencies (Go, ETCD, Docker), clone the Kubernetes repo, then:
```bash
hack/local-up-cluster.sh
```
###### b. Setup K8S context
In a new shell:
Make sure Kubectl is in you path: (path/to/kubernetes/repo/cluster/kubectl.sh)
```bash
cluster/kubectl.sh config set-cluster local --server=http://127.0.0.1:8080 --insecure-skip-tls-verify=true
cluster/kubectl.sh config set-context local --cluster=local
cluster/kubectl.sh config use-context local
```
##### 2. Run startup script (build images, push to GCloud container registry, create replications controllers and services)
To how what is happening in your cluster, you can run the following command in a different terminal:
```bash
# Show available pods
watch -n1 'cluster/kubectl.sh get pods'
```
And in another terminal the startup script:
```bash
/bin/bash startup.sh
```
##### 3. Test
```bash
curl -k -H "Host: www.site-one.com" https://$(kubectl get svc | grep proxy | awk '{print $2}')
curl -k -H "Host: www.site-two.com" https://$(kubectl get svc | grep proxy | awk '{print $2}')
# This command get the proxy service IP: kubectl get svc | grep proxy | awk '{print $2}'
```
##### 4. Clean up
Bring down replication controllers and services
```bash
/bin/bash cleanup.sh
```