AWS SDK：ECS -> createTaskSet -> 如何设置最后一个任务定义版本

Question

I want to make docker fargate task using node server

so, I use AWS node sdk like this.

 createTaskSet: { cluster: 'Cluster name', service: 'Service name', taskDefinition: 'Definition', //last definition으로 생성하는 방식 }

but in here I must insert task definition name with version so I want to this use every last version of task definition

can I use

{ taskDefinition: 'arn:aws:ecs:us-west-2:123456789012:task-definition/MyTaskDefinition:last', }

like this?

Answer 1

No, You can not mention the latest in the task definition, as it starts from 1 and after that work sequentially.

If you tried so, this will throw error naming error as : not allowed in family name.

Family

family
Type: string

Required: yes

When you register a task definition, you give it a family, which is similar to a name for multiple versions of the task definition, specified with a revision number. The first task definition that is registered into a particular family is given a revision of 1, and any task definitions registered after that are given a sequential revision number.

You need to get the latest revision before using it.

You can get in AWS-cli the latest revision like

aws ecs describe-task-definition --task-definition my_task_definition_name --query 'taskDefinition.revision'