diff --git a/site/content/en/docs/tutorials/ambassador_ingress_controller.md b/site/content/en/docs/tutorials/ambassador_ingress_controller.md new file mode 100644 index 0000000000000000000000000000000000000000..faf56fafee5e84b6ee94be0b9e14bbad3f74f415 --- /dev/null +++ b/site/content/en/docs/tutorials/ambassador_ingress_controller.md @@ -0,0 +1,131 @@ +--- +title: "Using Ambassador Ingress Controller" +linkTitle: "Using Ambassador Ingress Controller" +weight: 1 +date: 2020-05-14 +description: > + Using Ambassador Ingress Controller with Minikube +--- + +## Overview + +[Ambassador](https://getambassador.io/) allows access to Kubernetes services running inside Minikube. Ambassador can be +configured via both, [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/) resources and +[Mapping](https://www.getambassador.io/docs/latest/topics/using/intro-mappings/) resources. + +## Prerequisites + +- Minikube version higher than v1.10.1 +- kubectl + +## Configuring Ambassador + +### Installing Ambassador + +Ambassador is available as a Minikube +[addon]((https://github.com/kubernetes/minikube/tree/master/deploy/addons/ambassdor)). Install it by running - + +```shell script +minikube addons enable ambassador +``` + +This will install Ambassador in the namespace `ambassador`. + +### Accessing Ambassador via `minikube tunnel` + +The service `ambassador` is of type `LoadBalancer`. To access this service, run a +[Minikube tunnel](https://minikube.sigs.k8s.io/docs/handbook/accessing/#using-minikube-tunnel) in a separate terminal. + +```shell script +minikube tunnel +``` + +You can now access Ambassador at the external IP allotted to the `ambassador` service. +Get the external IP with the following command: +```shell script +kubectl get service ambassador -n ambassador +NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE +ambassador LoadBalancer 10.104.86.124 10.104.86.124 80:31287/TCP,443:31934/TCP 77m +``` + +### Configuring via Ingress resource + +In this tutorial, we'll configure Ambassador via an Ingress resource. To configure via `IngressClass` resource, read +this [post](https://blog.getambassador.io/new-kubernetes-1-18-extends-ingress-c34abdc2f064). + +First, let's create a Kubernetes deployment and service which we will talk to via Ambassador. + +```shell script +kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.4 +kubectl expose deployment hello-minikube --port=8080 +``` + +This service `hello-minikube` is of type `ClusterIP` and is not accessible from outside the cluster. + +Now, create an Ingress resource which exposes this service at the path `/hello/` + +**Note:** The Ingress resource must have the annotation `kubernetes.io/ingress.class: ambassador` for Ambassador to +pick it up. + +`hello-ingress.yaml` +```yaml +apiVersion: extensions/v1beta1 +kind: Ingress +metadata: + annotations: + kubernetes.io/ingress.class: ambassador + name: test-ingress +spec: + rules: + - http: + paths: + - path: /hello/ + backend: + serviceName: hello-minikube + servicePort: 8080 +``` +Run the command: `kubectl apply -f hello-ingress.yaml` + +That's it! You can now access your service via Ambassador: +```shell script +curl http:// +``` + +**Note:** For more advanced Ingress configurations with Ambassador, like TLS termination and name-based virtual hosting, +see Ambassador's [documentation](https://www.getambassador.io/docs/latest/topics/running/ingress-controller/). + +### Configuring via Mapping resource + +While Ambassador understands the Ingress spec, the Ingress spec does not leverage all of Ambassador's features. The +[Mapping](https://www.getambassador.io/docs/latest/topics/using/intro-mappings/) resource is Ambassador's core resource +that maps a target backend service to a given host or prefix. + +Let's create another Kubernetes deployment and service that we will expose via Ambassador - +```shell script +kubectl create deployment mapping-minikube --image=k8s.gcr.io/echoserver:1.4 +kubectl expose deployment mapping-minikube --port=8080 +``` + +This service `mapping-minikube` is of type `ClusterIP` and is not accessible from outside the cluster. + +Now, let's create a mapping that exposes this service via Ambassador at the path `/hello-mapping/` + +`hello-mapping.yaml` +```yaml +apiVersion: getambassador.io/v2 +kind: Mapping +metadata: + name: mapping-minikube +spec: + prefix: /hello-mapping/ + service: mapping-minikube.default:8080 +``` +Run the command: `kubectl apply -f hello-mapping.yaml` + +That's it! You can now access your service via Ambassador: +```shell script +curl http:// +``` + +**Note:** Read more about mappings in Ambassador's +[documentation](https://www.getambassador.io/docs/latest/topics/using/mappings/). \ No newline at end of file