Question about configuring policy for uploading docker image to ECR in Jenkins

Question

I created a new role for upload docker image to ECR by using Jenkins, I attached this policy I found here

{
   "Version":"2012-10-17",
   "Statement":[
      {
         "Sid":"ListImagesInRepository",
         "Effect":"Allow",
         "Action":[
            "ecr:ListImages"
         ],
         "Resource":"arn:aws:ecr:us-east-1:123456789012:repository/my-repo"
      },
      {
         "Sid":"GetAuthorizationToken",
         "Effect":"Allow",
         "Action":[
            "ecr:GetAuthorizationToken"
         ],
         "Resource":"*"
      },
      {
         "Sid":"ManageRepositoryContents",
         "Effect":"Allow",
         "Action":[
                "ecr:GetAuthorizationToken",
                "ecr:BatchCheckLayerAvailability",
                "ecr:GetDownloadUrlForLayer",
                "ecr:GetRepositoryPolicy",
                "ecr:DescribeRepositories",
                "ecr:ListImages",
                "ecr:DescribeImages",
                "ecr:BatchGetImage",
                "ecr:InitiateLayerUpload",
                "ecr:UploadLayerPart",
                "ecr:CompleteLayerUpload",
                "ecr:PutImage"
         ],
         "Resource":"arn:aws:ecr:us-east-1:123456789012:repository/my-repo"
      }
   ]
}

I tested in Policy Simulator, it gave me denied:

I suspect something goes wrong with the ARN, I've only found a URL for ECR repo, but I changed the format according to the example, can someone help me? Been struggling with it for a very long time now.

Answer 1

The issue is with the Simulation Resource . You are testing for * , but your policy, wisely, doesn't allow all. You should test it for the actual ARN of the resource you need to access.