{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ssm:GetCommandInvocation",
        "ssm:DescribeInstanceInformation"
      ],
      "Resource": [
        "*"
      ],
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:CalledVia": [
            "mgn.amazonaws.com"
          ]
        }
      }
    },
    {
      "Effect": "Allow",
      "Action": [
        "ssm:SendCommand",
        "ssm:DescribeDocument",
        "ssm:StartAutomationExecution"
      ],
      "Resource": [
        "arn:aws:ssm:*:*:document/*",
        "arn:aws:ssm:*:*:automation-execution/*",
        "arn:aws:ssm:*:*:automation-definition/*:*"
      ],
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:CalledVia": [
            "mgn.amazonaws.com"
          ]
        }
      }
    },
    {
      "Effect": "Allow",
      "Action": [
        "ssm:SendCommand"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:instance/*"
      ],
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:CalledVia": [
            "mgn.amazonaws.com"
          ]
        },
        "Null": {
          "aws:ResourceTag/AWSApplicationMigrationServiceManaged": "false"
        }
      }
    },
    {
      "Effect": "Allow",
      "Action": [
        "ssm:ListDocuments"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ssm:ListDocumentVersions",
        "ssm:GetDocument"
      ],
      "Resource": "arn:aws:ssm:*:*:document/*"
    },
    {
      "Sid": "SsmViaMgnSendCommandToConnector",
      "Effect": "Allow",
      "Action": "ssm:SendCommand",
      "Resource": "arn:aws:ssm:*:*:managed-instance/*",
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:CalledVia": [
            "mgn.amazonaws.com"
          ]
        },
        "StringEquals": {
          "aws:ResourceAccount": "${aws:PrincipalAccount}"
        }
      }
    }
  ]
}