shuuji3.xyz
metallb-lab#
🗼 metallb-lab: Experiments to publish two services using MetalLB and Ingress on MicroK8s
Install microk8s and enable metallb and ingress addon#
sudo snap install microk8s
sudo microk8s enable metallb ingress
Apply configs#
git clone git@github.com:shuuji3/metallb-lab.git && cd metallb-lab/
sudo microk8s kubectl apply -f ./
Created resources#
The above kubectl apply will create the following resources:
kubectl get svc,deploy,ingress
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.152.183.1 <none> 443/TCP 2d3h
service/web ClusterIP 10.152.183.89 <none> 8080/TCP 52m
service/nginx ClusterIP 10.152.183.194 <none> 80/TCP 26m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/web 1/1 1 1 52m
deployment.apps/nginx 1/1 1 1 28m
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress.extensions/ingress <none> example.com 127.0.0.1 80 27m
Ingress#
kubectl describe ingress
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
Name: ingress
Namespace: default
Address: 127.0.0.1
Default backend: default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
Host Path Backends
---- ---- --------
example.com
/hello-app web:8080 10.1.75.67:8080)
/ nginx:80 10.1.205.4:80)
Annotations: nginx.ingress.kubernetes.io/rewrite-target: /$1
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal CREATE 27m nginx-ingress-controller Ingress default/ingress
Access services#
You can now access two services with each path defined in the Ingress resource.
svc/nginx at the path http://<host-public-ip>/#
curl -s -H 'host: example.com' http://<host-public-ip>/ | head
should return
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
svc/hello-app at the path http://<host-public-ip>/hello-app/#
curl -s -H 'host: example.com' http://<host-public-ip>/hello-app
will return
Hello, world!
Version: 1.0.0
Hostname: web-79d88c97d6-sckw6