Fix broken indentation in cockroachdb config from #45447

While I'm here, bring the e2e config precisely in line with the example
config.

examples/cockroachdb/cockroachdb-statefulset.yaml

@@ -93,24 +93,23 @@ spec:
         image: cockroachdb/cockroach-k8s-init:0.1
         imagePullPolicy: IfNotPresent
         args:
-          - "-on-start=/on-start.sh"
-          - "-service=cockroachdb"
+        - "-on-start=/on-start.sh"
+        - "-service=cockroachdb"
         env:
-          - name: POD_NAMESPACE
-            valueFrom:
-              fieldRef:
-                apiVersion: v1
-                fieldPath: metadata.namespace
-       volumeMounts:
-       - name: datadir
-         mountPath: "/cockroach/cockroach-data"
+        - name: POD_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        volumeMounts:
+        - name: datadir
+          mountPath: "/cockroach/cockroach-data"
       affinity:
         podAntiAffinity:
           preferredDuringSchedulingIgnoredDuringExecution:
           - weight: 100
             podAffinityTerm:
               labelSelector:
-                matchExpress:
+                matchExpressions:
                 - key: app
                   operator: In
                   values:

test/e2e/testing-manifests/statefulset/cockroachdb/statefulset.yaml

@@ -23,6 +23,7 @@ spec:
       initContainers:
       - name: bootstrap
         image: cockroachdb/cockroach-k8s-init:0.1
+        imagePullPolicy: IfNotPresent
         args:
         - "-on-start=/on-start.sh"
         - "-service=cockroachdb"
@@ -30,11 +31,22 @@ spec:
         - name: POD_NAMESPACE
           valueFrom:
             fieldRef:
-              apiVersion: v1
               fieldPath: metadata.namespace
         volumeMounts:
         - name: datadir
           mountPath: "/cockroach/cockroach-data"
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app
+                  operator: In
+                  values:
+                  - cockroachdb
+              topologyKey: kubernetes.io/hostname
       containers:
       - name: cockroachdb
         # Runs the master branch. Not recommended for production, but since