Add variable reference to container env

Author: Liujingfang1

examples/wordpress/README.md

@@ -89,7 +89,7 @@ The patch has following content
 >       - name: wordpress
 >         env:
 >         - name: WORDPRESS_DB_HOST
->           value: mysql
+>           value: $(MYSQL_SERVICE)
 >         - name: WORDPRESS_DB_PASSWORD
 >           valueFrom:
 >             secretKeyRef:

examples/wordpress/patch.yaml

@@ -15,7 +15,7 @@ spec:
       - name: wordpress
         env:
         - name: WORDPRESS_DB_HOST
-          value: mysql
+          value: $(MYSQL_SERVICE)
         - name: WORDPRESS_DB_PASSWORD
           valueFrom:
             secretKeyRef:

pkg/transformers/refvars.go

@@ -58,6 +58,26 @@ func NewRefVarTransformer(vars map[string]string) (Transformer, error) {
 				GroupVersionKind: &schema.GroupVersionKind{Kind: "Job"},
 				Path:             []string{"spec", "template", "spec", "containers", "args"},
 			},
+			{
+				GroupVersionKind: &schema.GroupVersionKind{Kind: "StatefulSet"},
+				Path:             []string{"spec", "template", "spec", "initContainers", "env", "value"},
+			},
+			{
+				GroupVersionKind: &schema.GroupVersionKind{Kind: "StatefulSet"},
+				Path:             []string{"spec", "template", "spec", "containers", "env", "value"},
+			},
+			{
+				GroupVersionKind: &schema.GroupVersionKind{Kind: "Deployment"},
+				Path:             []string{"spec", "template", "spec", "initContainers", "env", "value"},
+			},
+			{
+				GroupVersionKind: &schema.GroupVersionKind{Kind: "Deployment"},
+				Path:             []string{"spec", "template", "spec", "containers", "env", "value"},
+			},
+			{
+				GroupVersionKind: &schema.GroupVersionKind{Kind: "Job"},
+				Path:             []string{"spec", "template", "spec", "containers", "env", "value"},
+			},
 		},
 	}, nil
 }