Fix local setup issues

Makefile

@@ -144,6 +144,7 @@ ci-e2e-kind: $(KIND) $(YQ)
 export SKAFFOLD_BUILD_CONCURRENCY = 0
 extension-up extension-dev: export SKAFFOLD_DEFAULT_REPO = localhost:5001
 extension-up extension-dev: export SKAFFOLD_PUSH = true
+extension-up extension-dev: export EXTENSION_VERSION = $(VERSION)
 # use static label for skaffold to prevent rolling all gardener components on every `skaffold` invocation
 extension-up extension-dev extension-down: export SKAFFOLD_LABEL = skaffold.dev/run-id=extension-local
 

skaffold.yaml

@@ -1,8 +1,17 @@
-apiVersion: skaffold/v4beta3
+apiVersion: skaffold/v4beta7
 kind: Config
 metadata:
   name: rsyslog-relp-echo-server
 build:
+  tagPolicy:
+    customTemplate:
+      template: "{{.version}}-{{.sha}}"
+      components:
+        - name: version
+          envTemplate:
+            template: "{{.EXTENSION_VERSION}}"
+        - name: sha
+          inputDigest: {}
   artifacts:
     - image: local-skaffold/gardener-extension-shoot-rsyslog-relp-echo-server
       docker:
@@ -22,11 +31,20 @@ deploy:
         setValues:
           service.clusterIP: 10.2.64.54
 ---
-apiVersion: skaffold/v4beta3
+apiVersion: skaffold/v4beta7
 kind: Config
 metadata:
   name: extension
 build:
+  tagPolicy:
+    customTemplate:
+      template: "{{.version}}-{{.sha}}"
+      components:
+        - name: version
+          envTemplate:
+            template: "{{.EXTENSION_VERSION}}"
+        - name: sha
+          inputDigest: {}
   artifacts:
     - image: local-skaffold/gardener-extension-shoot-rsyslog-relp
       ko:
@@ -69,13 +87,31 @@ manifests:
     paths:
     - local-setup
 deploy:
-  kubectl: {}
+  # --server-side apply is a workaround for https://github.com/gardener/gardener/issues/10267.
+  # kubectl apply attempts a strategic merge patch which fails for a ControllerDeployment.
+  # For more details, see https://github.com/gardener/gardener/issues/10267.
+  #
+  # TODO: Switch back to "kubectl: {}" when the above issue is resolved.
+  kubectl:
+    flags:
+      apply:
+        - --server-side
+        - --force-conflicts
 ---
-apiVersion: skaffold/v4beta3
+apiVersion: skaffold/v4beta7
 kind: Config
 metadata:
   name: admission
 build:
+  tagPolicy:
+    customTemplate:
+      template: "{{.version}}-{{.sha}}"
+      components:
+        - name: version
+          envTemplate:
+            template: "{{.EXTENSION_VERSION}}"
+        - name: sha
+          inputDigest: {}
   artifacts:
     - image: local-skaffold/gardener-extension-shoot-rsyslog-relp-admission
       ko: