Merge pull request #62 from mgajda/master

Add all valid regions as of July 19th 2018...

cmd/root.go

@@ -45,7 +45,7 @@ CPU (CPU Units)    Memory (MiB)
 4096               8192 through 30720 in 1GiB increments
 `)
 
-var validRegions = []string{"us-east-1"}
+var validRegions = []string{"us-east-1", "us-east-2", "us-west-2", "ap-southeast-1", "ap-southeast-2", "ap-northeast-1", "eu-central-1", "eu-west-1"}
 
 var (
 	clusterName string
@@ -105,11 +105,14 @@ CloudWatch Logs, and Amazon Route 53 into an easy-to-use CLI.`,
 			}
 		}
 
+		var foundRegion bool = false
 		for _, validRegion := range validRegions {
 			if region == validRegion {
+				foundRegion = true
 				break
 			}
-
+		}
+		if !foundRegion {
 			console.IssueExit("Invalid region: %s [valid regions: %s]", region, strings.Join(validRegions, ", "))
 		}