Include a job to help operators migrate their storage version

DEVELOPMENT.md

@@ -199,8 +199,8 @@ ko apply -f config/
 
 # Run post-install job to setup nice XIP.IO domain name.  This only works
 # if your Kubernetes LoadBalancer has an IPv4 address.
-ko delete -f config/post-install --ignore-not-found
-ko apply -f config/post-install
+ko delete -f config/post-install/default-domain.yaml --ignore-not-found
+ko apply -f config/post-install/default-domain.yaml
 ```
 
 The above step is equivalent to applying the `serving.yaml` for released

config/core/roles/clusterrole.yaml

@@ -33,7 +33,7 @@ rules:
     resources: ["mutatingwebhookconfigurations", "validatingwebhookconfigurations"]
     verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
   - apiGroups: ["apiextensions.k8s.io"]
-    resources: ["customresourcedefinitions"]
+    resources: ["customresourcedefinitions", "customresourcedefinitions/status"]
     verbs: ["get", "list", "create", "update", "delete", "patch", "watch"]
   - apiGroups: ["autoscaling"]
     resources: ["horizontalpodautoscalers"]

config/post-install/storage-version-migration.yaml

@@ -0,0 +1,44 @@
+# Copyright 2020 The Knative Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: storage-version-migration
+  namespace: knative-serving
+  labels:
+    app: "storage-version-migration"
+    serving.knative.dev/release: devel
+spec:
+  ttlSecondsAfterFinished: 600
+  backoffLimit: 10
+  template:
+    metadata:
+      labels:
+        app: "storage-version-migration"
+        serving.knative.dev/release: devel
+    spec:
+      serviceAccountName: controller
+      restartPolicy: OnFailure
+      containers:
+      - name: migrate
+        # This is the Go import path for the binary that is containerized
+        # and substituted here.
+        image: ko://knative.dev/serving/vendor/knative.dev/pkg/apiextensions/storageversion/cmd/migrate
+        args:
+          - "services.serving.knative.dev"
+          - "configurations.serving.knative.dev"
+          - "revisions.serving.knative.dev"
+          - "routes.serving.knative.dev"
+

hack/generate-yamls.sh

@@ -51,6 +51,7 @@ rm -fr ${YAML_OUTPUT_DIR}/*.yaml
 readonly SERVING_YAML=${YAML_OUTPUT_DIR}/serving.yaml
 readonly SERVING_CORE_YAML=${YAML_OUTPUT_DIR}/serving-core.yaml
 readonly SERVING_DEFAULT_DOMAIN_YAML=${YAML_OUTPUT_DIR}/serving-default-domain.yaml
+readonly SERVING_STORAGE_VERSION_MIGRATE_YAML=${YAML_OUTPUT_DIR}/serving-storage-version-migration.yaml
 readonly SERVING_HPA_YAML=${YAML_OUTPUT_DIR}/serving-hpa.yaml
 readonly SERVING_CRD_YAML=${YAML_OUTPUT_DIR}/serving-crds.yaml
 readonly SERVING_CERT_MANAGER_YAML=${YAML_OUTPUT_DIR}/serving-cert-manager.yaml
@@ -85,7 +86,9 @@ cd "${YAML_REPO_ROOT}"
 echo "Building Knative Serving"
 ko resolve ${KO_YAML_FLAGS} -R -f config/300-imagecache.yaml -f config/core/ | "${LABEL_YAML_CMD[@]}" > "${SERVING_CORE_YAML}"
 
-ko resolve ${KO_YAML_FLAGS} -f config/post-install/ | "${LABEL_YAML_CMD[@]}" > "${SERVING_DEFAULT_DOMAIN_YAML}"
+ko resolve ${KO_YAML_FLAGS} -f config/post-install/default-domain.yaml | "${LABEL_YAML_CMD[@]}" > "${SERVING_DEFAULT_DOMAIN_YAML}"
+
+ko resolve ${KO_YAML_FLAGS} -f config/post-install/storage-version-migration.yaml | "${LABEL_YAML_CMD[@]}" > "${SERVING_STORAGE_VERSION_MIGRATE_YAML}"
 
 # These don't have images, but ko will concatenate them for us.
 ko resolve ${KO_YAML_FLAGS} -f config/core/resources/ -f config/300-imagecache.yaml | "${LABEL_YAML_CMD[@]}" > "${SERVING_CRD_YAML}"
@@ -152,6 +155,7 @@ cat << EOF > ${YAML_LIST_FILE}
 ${SERVING_YAML}
 ${SERVING_CORE_YAML}
 ${SERVING_DEFAULT_DOMAIN_YAML}
+${SERVING_STORAGE_VERSION_MIGRATE_YAML}
 ${SERVING_HPA_YAML}
 ${SERVING_CRD_YAML}
 ${SERVING_CERT_MANAGER_YAML}