added required k8s and docker file

k8s/overlays/local/kustomization.yaml

@@ -0,0 +1,14 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: ecommerce
+resources:
+  - ../../base
+images:
+  - name: ecommerce-backend
+    newName: ecommerce-backend
+    newTag: latest
+patches:
+  - path: patches/deployment-patch.yaml
+    target:
+      kind: Deployment
+      name: ecommerce-app