NO-ISSUE: Fix DNS wilcard domain validation

DNS wildcard domain starts with validateNoWildcardDNS. The domain may have an optional trailing dot.
Currently the assumption is that the trailing dot is mandatory for the domain name.

pkg/validations/validations.go

@@ -18,7 +18,7 @@ import (
 const (
 	baseDomainRegex          = `^[a-z\d]+[\-]*[a-z\d]+$`
 	dnsNameRegex             = `^([a-z\d]([\-]*[a-z\d]+)*\.)+[a-z\d]+[\-]*[a-z\d]+$`
-	wildCardDomainRegex      = `^(validateNoWildcardDNS\.).+\.$`
+	wildCardDomainRegex      = `^(validateNoWildcardDNS\.).+\.?$`
 	hostnameRegex            = `^[a-z0-9][a-z0-9\-\.]{0,61}[a-z0-9]$`
 	installerArgsValuesRegex = `^[A-Za-z0-9@!#$%*()_+-=//.,";':{}\[\]]+$`
 )

pkg/validations/validations_test.go

@@ -264,6 +264,14 @@ var _ = Describe("dns name", func() {
 			domainName: "exam--ple",
 			valid:      true,
 		},
+		{
+			domainName: "validateNoWildcardDNS.test.com",
+			valid:      true,
+		},
+		{
+			domainName: "validateNoWildcardDNS.test.com.",
+			valid:      true,
+		},
 		{
 			domainName: "a.c",
 			valid:      false,