Add a list function

api/v1/environments.go

@@ -97,5 +97,39 @@ func (e *EnvironmentsServer) Get(ctx context.Context, in *proto.EnvironmentId) (
 }
 
 func (e *EnvironmentsServer) List(in *empty.Empty, stream proto.Environments_ListServer) error {
+	md, ok := metadata.FromIncomingContext(stream.Context())
+	if !ok {
+		return errors.New("metadata is not provided")
+	}
+	token, ok := md["token"]
+	if !ok {
+		return errors.New("token is not sent via metadata")
+	}
+
+	uuid, ok := md["uuid"]
+	if !ok {
+		return errors.New("used id is not sent via metadata")
+	}
+
+	environment := &controllers.Environemnt{
+		UserID:     uuid[0],
+		Controller: e.controller,
+		Token:      token[0],
+	}
+	envs, err := environment.ListEnvs(stream.Context())
+	if err != nil {
+		return err
+	}
+
+	for _, env := range envs {
+		if err := stream.Send(&proto.EnvironmentFull{
+			Id: &proto.EnvironmentId{Id: "test"},
+			Data: &proto.EnvironmentData{
+				Name: env,
+			},
+		}); err != nil {
+			return err
+		}
+	}
 	return nil
 }

internal/controllers/environments.go

@@ -13,6 +13,7 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/rest"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 )
 
 type Environemnt struct {
@@ -91,6 +92,7 @@ func (env *Environemnt) Create(ctx context.Context) error {
 			Namespace: env.UserID,
 			Labels: map[string]string{
 				"component": "bootstrap",
+				"kind":      "environment",
 			},
 		},
 		Data: map[string]string{
@@ -138,3 +140,34 @@ func (env *Environemnt) Delete(ctx context.Context) error {
 
 	return nil
 }
+
+func (env *Environemnt) ListEnvs(ctx context.Context) ([]string, error) {
+	conf := &rest.Config{
+		Host:        "https://kubernetes.default.svc.cluster.local:443",
+		BearerToken: env.Token,
+		TLSClientConfig: rest.TLSClientConfig{
+			Insecure: true,
+		},
+	}
+	controller, err := ctrl.NewManager(conf, ctrl.Options{})
+	if err != nil {
+		return []string{}, err
+	}
+	cms := corev1.ConfigMapList{}
+	cl := controller.GetClient()
+
+	labels := client.MatchingLabels{
+		"kind": "environment",
+	}
+
+	ns := client.InNamespace(env.UserID)
+	if err := cl.List(ctx, &cms, labels, ns); err != nil {
+		return []string{}, err
+	}
+
+	result := []string{}
+	for _, env := range cms.Items {
+		result = append(result, env.Name)
+	}
+	return result, nil
+}