add delete for env groups upon stack deletion

api/server/handlers/stack/delete.go

@@ -9,6 +9,7 @@ import (
 	"github.com/porter-dev/porter/api/server/shared/apierrors"
 	"github.com/porter-dev/porter/api/server/shared/config"
 	"github.com/porter-dev/porter/api/types"
+	"github.com/porter-dev/porter/internal/kubernetes/envgroup"
 	"github.com/porter-dev/porter/internal/models"
 )
 
@@ -40,6 +41,13 @@ func (p *StackDeleteHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
+		k8sAgent, err := p.GetAgent(r, cluster, "")
+
+		if err != nil {
+			p.HandleAPIError(w, r, apierrors.NewErrInternal(err))
+			return
+		}
+
 		helmAgent, err := p.GetHelmAgent(r, cluster, namespace)
 
 		if err != nil {
@@ -54,6 +62,11 @@ func (p *StackDeleteHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				name:      appResource.Name,
 			})
 		}
+
+		// delete all env groups in stack
+		for _, envGroup := range revision.EnvGroups {
+			envgroup.DeleteEnvGroup(k8sAgent, envGroup.Name, envGroup.Namespace)
+		}
 	}
 
 	stack, err := p.Repo().Stack().DeleteStack(stack)