Add on: Ambassador

Ambassador is available on the latest and 1.19+ tracks.

Ambassador API Gateway enables you to easily expose, secure, and manage traffic to your Kubernetes microservices of any type. Enable this add on with:

  1. microk8s enable ambassador

You can now expose a Service by creating an Ingress . Note that Ambassador will only serve Ingress resources that include the annotation kubernetes.io/ingress.class: ambassador (otherwise they are just ignored).

For example:

  1. cat<<EOF | microk8s.kubectl apply -f -
  2. ---
  3. kind: Pod
  4. apiVersion: v1
  5. metadata:
  6.   name: foo-app
  7.   labels:
  8.     app: foo
  9. spec:
  10.   containers:
  11.   - name: foo-app
  12.     image: hashicorp/http-echo:0.2.3
  13.     args:
  14.     - "-text=foo"
  15. ---
  16. kind: Service
  17. apiVersion: v1
  18. metadata:
  19.   name: foo-service
  20. spec:
  21.   selector:
  22.     app: foo
  23.   ports:
  24.   # Default port used by the image
  25.   - port: 5678
  26. ---
  27. apiVersion: extensions/v1beta1
  28. kind: Ingress
  29. metadata:
  30.   name: example-ingress
  31.   annotations:
  32.     kubernetes.io/ingress.class: ambassador
  33. spec:
  34.   rules:
  35.   - http:
  36.       paths:
  37.       - path: /foo
  38.         backend:
  39.           serviceName: foo-service
  40.           servicePort: 5678
  41. EOF

Now verify that the ingress works:

  1. # should output "foo"
  2. curl localhost/foo

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