e2e: use docker.io/library as prefix for official images

Docker Hub offers a way to pull official images without any project
prefix, like "docker.io/vault:latest". This does a redirect to the
images located under "docker.io/library".

By using the full qualified image name, a redirect gets removed while
pulling the images. This reduces the likelyhood of hittin Docker Hub
pull rate-limits.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

examples/cephfs/deployment.yaml

@@ -17,7 +17,7 @@ spec:
     spec:
       containers:
         - name: web-server
-          image: docker.io/nginx:latest
+          image: docker.io/library/nginx:latest
           volumeMounts:
             - name: mypvc
               mountPath: /var/lib/www/html

examples/cephfs/pod-clone.yaml

@@ -6,7 +6,7 @@ metadata:
 spec:
   containers:
     - name: web-server
-      image: docker.io/nginx:latest
+      image: docker.io/library/nginx:latest
       volumeMounts:
         - name: mypvc
           mountPath: /var/lib/www/html

examples/cephfs/pod-restore.yaml

@@ -6,7 +6,7 @@ metadata:
 spec:
   containers:
     - name: web-server
-      image: docker.io/nginx:latest
+      image: docker.io/library/nginx:latest
       volumeMounts:
         - name: mypvc
           mountPath: /var/lib/www/html

examples/cephfs/pod.yaml

@@ -6,7 +6,7 @@ metadata:
 spec:
   containers:
     - name: web-server
-      image: docker.io/nginx:latest
+      image: docker.io/library/nginx:latest
       volumeMounts:
         - name: mypvc
           mountPath: /var/lib/www