[PCUI] Support PCUI in us-gov-east-1(OSU) region and other future GovCloud regions (#433)

* Support PCUI in us-gov-east-1(OSU) region and other future GovCloud regions

* Fix the hardcode aws patition by using AWS::Partition

Author: hehe7318

infrastructure/parallelcluster-ui-cognito.yaml

@@ -27,7 +27,7 @@ Parameters:
     Default: ''
 
 Conditions:
-  GovCloud: !Equals [!Ref AWS::Region, 'us-gov-west-1']
+  GovCloud: !Equals [!Ref 'AWS::Partition', 'aws-us-gov']
   UsePermissionBoundary: !Not [ !Equals [ !Ref PermissionsBoundaryPolicy, '' ] ]
   UseCustomDomain: !Not [!Equals [!Ref CustomDomain, '']]
 

infrastructure/parallelcluster-ui.yaml

@@ -162,7 +162,7 @@ Conditions:
       - !Not [!Equals [!Ref SNSRole, ""]]
   UseNewCognito:
     !Not [ Condition: UseExistingCognito]
-  InGovCloud: !Equals ['us-gov-west-1', !Ref "AWS::Region"]
+  InGovCloud: !Equals [!Ref 'AWS::Partition', 'aws-us-gov']
   UsePermissionBoundary: !Not [!Equals [!Ref PermissionsBoundaryPolicy, '']]
   UsePermissionBoundaryPCAPI: !Not [!Equals [!Ref PermissionsBoundaryPolicyPCAPI, '']]
   UseIAMRoleAndPolicyPrefix: !Not [!Equals [!Ref IAMRoleAndPolicyPrefix, '']]
@@ -517,7 +517,7 @@ Resources:
             Action:
               - 'sts:AssumeRole'
       ManagedPolicyArns:
-        - 'arn:aws:iam::aws:policy/service-role/AmazonAPIGatewayPushToCloudWatchLogs'
+        - 'arn:${AWS::Partition}:iam::aws:policy/service-role/AmazonAPIGatewayPushToCloudWatchLogs'
       PermissionsBoundary: !If [UsePermissionBoundary, !Ref PermissionsBoundaryPolicy, !Ref 'AWS::NoValue']
 
   ApiGatewayAccessLog: