Grypse commented on code in PR #270:
URL: 
https://github.com/apache/flink-kubernetes-operator/pull/270#discussion_r898754833


##########
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/validation/DefaultValidator.java:
##########
@@ -100,6 +104,21 @@ private static Optional<String> 
firstPresent(Optional<String>... errOpts) {
         return Optional.empty();
     }
 
+    private Optional<String> validateDeploymentName(String name) {
+        if (name == null) {
+            return Optional.of("FlinkDeployment name must be define.");
+        } else {
+            Matcher matcher = DEPLOYMENT_NAME_PATTERN.matcher(name);
+            if (!matcher.matches()) {
+                return Optional.of(
+                        String.format(
+                                "The FlinkDeployment meta.name: %s is a 
invalid value, and must start and end with an alphanumeric character (e.g. 
'my-name',  or '123-abc', regex used for validation is 
'[a-z0-9]([-a-z0-9]*[a-z0-9])?'",

Review Comment:
   Corrected!



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