Prerequisite
Kubernetes Cluster with metallb (self-hosted) ref: https://github.com/Technicatgor/k3s-ansible
Installation
- Create a Namespace for your app:
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| kubectl create namespace my-web-app
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- Deploy Nginx Ingress Controller:
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| kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.8.2/deploy/static/provider/cloud/deploy.yaml
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- Deploy your web app: There are three parts in the deployment.yaml file.
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|
---
apiVersion: v1
kind: Service
metadata:
name: my-web-app
namespace: my-web-app
labels:
app: my-web-app
spec:
type: ClusterIP
selector:
app: my-web-app
ports:
- name: http
port: 80
targetPort: 80
protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-web-app
namespace: my-web-app
labels:
app: my-web-app
spec:
replicas: 1
selector:
matchLabels:
app: my-web-app
template:
metadata:
labels:
app: my-web-app
spec:
containers:
- name: my-web-app
image: nginx
ports:
- containerPort: 80
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: my-web-app-ingress
namespace: my-web-app
spec:
ingressClassName: nginx
rules:
- host: web-app.homelab.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: my-web-app
port:
number: 80
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Test ingress
check your app ingress IP kubectl get ingress -n my-web-app
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2
| NAME CLASS HOSTS ADDRESS PORTS AGE
my-web-app-ingress nginx web-app.homelab.local 192.168.30.221 80 117m
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| Add your domain into `/etc/host`
192.168.30.221 web-app.homelab.local
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curl web-app.homelab.local
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| <!doctype html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html {
color-scheme: light dark;
}
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.
</p>
<p>
For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br />
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.
</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
|
