Replace deprecated k8s registry references.

Problem: Previously all of Kubernetes' image hosting has been out of gcr.io. There were significant egress costs associated with this when images were pulled from entities outside gcp.  Refer to https://github.com/kubernetes/k8s.io/wiki/New-Registry-url-for-Kubernetes-(registry.k8s.io)

Solution: As highlighted at KubeCon NA 2022 k8s infra SIG update, the replacement for k8s.gcr.io which is registry.k8s.io is now ready for mainstream use and the old k8s.gcr.io has been formally deprecated and projects are requested to migrate off it. This commit migrates remaining references for kubernetes/git-sync to registry.k8s.io.
Signed-off-by: James Blair <mail@jamesblair.net>

Makefile

@@ -43,7 +43,7 @@ ALL_PLATFORMS := linux/amd64 linux/arm linux/arm64 linux/ppc64le linux/s390x
 OS := $(if $(GOOS),$(GOOS),$(shell go env GOOS))
 ARCH := $(if $(GOARCH),$(GOARCH),$(shell go env GOARCH))
 
-BASEIMAGE ?= k8s.gcr.io/build-image/debian-base:bullseye-v1.4.2
+BASEIMAGE ?= registry.k8s.io/build-image/debian-base:bullseye-v1.4.2
 
 IMAGE := $(REGISTRY)/$(BIN)
 TAG := $(VERSION)__$(OS)_$(ARCH)

RELEASING.md

@@ -61,7 +61,7 @@ name from above.  For example:
 ```
 
 When that PR is merged, the promoter bot will copy the images from staging to
-the final prod location (e.g. `k8s.gcr.io/git-sync/git-sync:v3.3.2`).
+the final prod location (e.g. `registry.k8s.io/git-sync/git-sync:v3.3.2`).
 
 ## Make a GitHub release
 

demo/config/deployment.yaml

@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
       - name: git-sync
-        image: k8s.gcr.io/git-sync:v3.1.3
+        image: registry.k8s.io/git-sync:v3.1.3
         volumeMounts:
         - name: markdown
           mountPath: /tmp/git
@@ -24,7 +24,7 @@ spec:
         - name: GIT_SYNC_LINK
           value: git-sync
       - name: hugo
-        image: k8s.gcr.io/hugo
+        image: registry.k8s.io/hugo
         volumeMounts:
         - name: markdown
           mountPath: /src

docs/kubernetes.md

@@ -35,7 +35,7 @@ spec:
           # "current" (see -dest below) which points to a checked-out copy of
           # the master branch (see -branch) of the repo (see -repo).
           # NOTE: git-sync already runs as non-root.
-          image: k8s.gcr.io/git-sync/git-sync:v4.0.0
+          image: registry.k8s.io/git-sync/git-sync:v4.0.0
           args:
             - --repo=https://github.com/kubernetes/git-sync
             - --branch=master

docs/ssh.md

@@ -79,7 +79,7 @@ as user ID "65533" which is created for running git-sync as non-root.
       # ...
       containers:
       - name: git-sync
-        image: k8s.gcr.io/git-sync:v3.1.5
+        image: registry.k8s.io/git-sync:v3.1.5
         args:
          - "--ssh"
          - "--repo=git@github.com:foo/bar"
@@ -138,7 +138,7 @@ spec:
           defaultMode: 0400
       containers:
       - name: git-sync
-        image: k8s.gcr.io/git-sync:v3.1.5
+        image: registry.k8s.io/git-sync:v3.1.5
         args:
          - "--ssh"
          - "--repo=git@github.com:torvalds/linux"