update deployment for multi-environment setup

overlays/stg/kustomization.yaml

@@ -0,0 +1,18 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../../base
+
+namespace: anyway-stg
+
+images:
+  - name: backend-image
+    newName: git.kluster.moll.re/anydev/anyway-backend
+    newTag: unstable
+
+patches:
+  - path: patch-ingress.yaml
+    target:
+      kind: IngressRoute
+      name: anyway-ingress

overlays/stg/patch-ingress.yaml

@@ -0,0 +1,3 @@
+- op: replace #action 
+  path: /spec/routes/0/match
+  value: Host(`anyway-stg.anydev.info`) || Host(`anyway-stg.kluster.moll.re`)