I am trying to migrate from Amaxon ECS EC2 to Fargate. Here I have made some changes as per recommendation from https://aws.amazon.com/blogs/compute/migrating-your-amazon-ecs-containers-to-aws-fargate/. I am using amazon cloudformation to create/update the resources.
ECSTaskDefinition:
Type: AWS::ECS::TaskDefinition
Properties:
Family : !Join ["_", [!Ref "AppName", !Ref "ComponentName", !Ref "TargetEnv" ]]
NetworkMode: "awsvpc"
ExecutionRoleArn: arn:aws:iam::${AWS::AccountId}:role/ecsTaskExecutionRole
TaskRoleArn:
Fn::Sub:
[
"arn:aws:iam::${AWS::AccountId}:role/exec_dp_${TargetEnv}",
{
TargetEnv: !Ref "TargetEnv"
}
]
RequiresCompatibilities:
- "FARGATE"
Memory: "512"
Cpu: '256'
ContainerDefinitions:
Here the problem is when I try to create the stack it gives me error as below:
Unable to assume the service linked role. Please verify that the ECS service linked role exists
I have also tried creating service linked role something like below:
AwsEcsTaskExecutionRole:
Type: AWS::IAM::Role
Properties:
Path: /
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Principal:
Service: ecs.amazonaws.com
Action: sts:AssumeRole
ManagedPolicyArns:
- arn:aws:iam::aws:policy/aws-service-role/AmazonECSServiceRolePolicy
and then specified it as ExecutionRoleArn: !GetAtt AwsEcsTaskExecutionRole.Arn
Its not working. Any direction regarding would really help.