Adjust environment loading to use external files for redis and registry.

+namespace: redis
+namePrefix: "test-"
+redisServer:
+  jsonPatches: []
+  strategicMergePatches: []
+images:
+  redis: "redis:6.2.6"
+

-environments:
-  default:
-    values:
-      - namespace: redis
-        namePrefix: "test-"
-        redisServer:
-          jsonPatches: []
-          strategicMergePatches: []
-        images:
-          redis: "redis:6.2.6"
+bases:
+  - ../common/environments.yaml
 
 ---
 releases:

+namespace: registry
+namePrefix: "test-"
+restoreFromEmpty:
+  enabled: true
+registry:
+  jsonPatches: []
+  strategicMergePatches: []
+  service:
+    registry:
+      nodePort: 0
+      clusterIP: 0
+      type: NodePort
+certificate:
+  hostNames:
+    - registry.local
+  issuerRef: ca-issuer
+istioVirtualService:
+  enabled: true
+  jsonPatches: []
+  strategicMergePatches: []
+  gateways:
+    - default/cluster-local-gateway
+  vhosts:
+    - registry.local
+images:
+  debian: "debian:bullseye-20211220"
+  registry: "registry:2"
+  redis: "redis:6.2.6"

-environments:
-  default:
-    values:
-      - namespace: registry
-        namePrefix: "test-"
-        restoreFromEmpty:
-          enabled: true
-        registry:
-          jsonPatches: []
-          strategicMergePatches: []
-          service:
-            registry:
-              nodePort: 0
-              clusterIP: 0
-              type: NodePort
-        certificate:
-          hostNames:
-            - registry.local
-          issuerRef: ca-issuer
-        istioVirtualService:
-          enabled: true
-          jsonPatches: []
-          strategicMergePatches: []
-          gateways:
-            - default/cluster-local-gateway
-          vhosts:
-            - registry.local
-        images:
-          debian: "debian:bullseye-20211220"
-          registry: "registry:2"
-          redis: "redis:6.2.6"
+bases:
+  - ../common/environments.yaml
+
 ---
 helmfiles:
   - path: ../redis/helmfile.yaml