Reduce CRD size.

1. Make the Restore hook.InitConatianer server side field pruing disable.
2. Remove restore patch in update-generate-crd-code.sh.
3. Modify related testcases.
4. Add Container fields validation in Restore Init hook.

Signed-off-by: Xun Jiang <jxun@vmware.com>

hack/restore-crd-patch-v1.json

@@ -1,3 +0,0 @@
-[
-    { "op": "replace", "path": "/spec/versions/0/schema/openAPIV3Schema/properties/spec/properties/hooks/properties/resources/items/properties/postHooks/items/properties/init/properties/initContainers/items/properties/ports/items/required", "value": [ "containerPort", "protocol"] }
-]

hack/restore-crd-patch-v1beta1.json

@@ -1,3 +0,0 @@
-[
-    { "op": "replace", "path": "/spec/validation/openAPIV3Schema/properties/spec/properties/hooks/properties/resources/items/properties/postHooks/items/properties/init/properties/initContainers/items/properties/ports/items/required", "value": [ "containerPort", "protocol"] }
-]

hack/update-generated-crd-code.sh

@@ -47,7 +47,7 @@ ${GOPATH}/src/k8s.io/code-generator/generate-groups.sh \
 # Generate apiextensions.k8s.io/v1
 # Generate manifests e.g. CRD, RBAC etc.
 controller-gen \
-  crd:crdVersions=v1\
+  crd:crdVersions=v1 \
   paths=./pkg/apis/velero/v1/... \
   rbac:roleName=velero-perms \
   paths=./pkg/controller/... \
@@ -55,13 +55,4 @@ controller-gen \
   object \
   paths=./pkg/apis/velero/v1/...
 
-# this is a super hacky workaround for https://github.com/kubernetes/kubernetes/issues/91395
-# which a result of fixing the validation on CRD objects. The validation ensures the fields that are list map keys, are either marked
-# as required or have default values to ensure merging of list map items work as expected.
-# With "containerPort" and "protocol" being considered as x-kubernetes-list-map-keys in the container ports, and "protocol" was not
-# a required field, the CRD would fail validation with errors similar to the one reported in https://github.com/kubernetes/kubernetes/issues/91395.
-# once controller-gen (above) is able to generate CRDs with `protocol` as a required field, this hack can be removed.
-kubectl patch -f config/crd/v1/bases/velero.io_restores.yaml -p "$(cat hack/restore-crd-patch-v1.json)" --type=json --local=true -o yaml > /tmp/velero.io_restores-yaml.patched
-mv /tmp/velero.io_restores-yaml.patched config/crd/v1/bases/velero.io_restores.yaml
-
 go generate ./config/crd/v1/crds