fivetran-ashokborra commented on code in PR #1424:
URL: https://github.com/apache/polaris/pull/1424#discussion_r2168141530


##########
polaris-core/src/main/java/org/apache/polaris/core/storage/aws/AwsCredentialsStorageIntegration.java:
##########
@@ -185,7 +190,32 @@ private IamPolicy policyString(
     bucketGetLocationStatementBuilder
         .values()
         .forEach(statementBuilder -> 
policyBuilder.addStatement(statementBuilder.build()));
-    return 
policyBuilder.addStatement(allowGetObjectStatementBuilder.build()).build();
+
+    policyBuilder.addStatement(allowGetObjectStatementBuilder.build());
+
+    policyBuilder.addStatement(
+        IamStatement.builder()
+            .effect(IamEffect.ALLOW)
+            .addAction("kms:GenerateDataKey")
+            .addAction("kms:Decrypt")
+            .addAction("kms:DescribeKey")
+            .addResource("arn:aws:kms:" + region + ":" + awsAccountId + 
":key/*")
+            .addCondition(IamConditionOperator.STRING_EQUALS, 
"aws:PrincipalArn", roleARN)
+            .addCondition(
+                IamConditionOperator.STRING_LIKE,
+                "kms:EncryptionContext:aws:s3:arn",
+                getArnPrefixFor(roleARN)
+                    + StorageUtil.getBucket(
+                        URI.create(
+                            
awsStorageConfigurationInfo.getAllowedLocations().iterator().next()))

Review Comment:
   We get only the bucket ARN here. I think the order of allowedLocations 
doesn't matter.



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