how to update alb in ecs service

Question

my ecs service need change a target group ,split from others 
but I cant find   a area to change service alb target in update service page

Venkat Penmetsa · Accepted Answer

Hello xerphigh,

It is currently not possible to update the ECS service load balancer configurations using the ECS console. However, you can use the [update-service](https://docs.aws.amazon.com/cli/latest/reference/ecs/update-service.html) CLI operation to perform the update.

You can use the below command to update the target group associated with your ECS service by passing the `containerName`, `containerPort`, and `targetGroupArn` values using the `--load-balancers` flag.
```
aws ecs update-service --cluster  --region  --service  --load-balancers '
[{
    "containerName": "",
    "containerPort": ,
    "targetGroupArn": ""
}]
'
```

I hope this helps!

JaegEr · Answer

Unknown option --load-balancers
Did the syntax change ?
$ aws ecs update-service --cluster shopping_cart-ecs-cluster --region ap-southeast-1 --service shopping_cart --load-balancers '
[{
    "containerName": "shopping_cart",
    "containerPort": 8070,
    "targetGroupArn": "arn:aws:elasticloadbalancing:ap-southeast-1:325842618176:targetgroup/shopping-cart-tg/4dc345363556433"
}]
'
To see help text, you can run:

aws help
  aws  help
  aws   help

usage: aws [options]   [ ...] [parameters]

Unknown options: --load-balancers,
[{
    "containerName": "shopping_cart",
    "containerPort": 8070,
    "targetGroupArn": "arn:aws:elasticloadbalancing:ap-southeast-1:325842618176:targetgroup/shopping-cart-tg/4dc345363556433"
}]

how to update alb in ecs service

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