Iterate over containerInstance feild

Question

 have a playbook that gets all container's ARNS in my aws ecs cluster

- name: List jenkins cluster container instances
  command: "aws ecs list-container-instances --cluster jenkins"
  register: jenkins_containers

- debug: var=jenkins_containers.stdout

output:

ok: [localhost] => {
    "jenkins_containers.stdout": {
        "containerInstanceArns": [
            "arn:aws:ecs:us-east-1:arn0", 
            "arn:aws:ecs:us-east-1:arn1", 
            "arn:aws:ecs:us-east-1:arn2"
        ]
    }
}​

How can I iterate over the containerInstanceArns field?

Answer 1

Try something like this:

- name: List jenkins cluster container instances
  command: "aws ecs list-container-instances --cluster jenkins"
  register: jenkins_containers

- set_fact:
    containers: "{{ jenkins_containers.stdout }}"

- debug: msg="{{ item }}" 
  with_items: "{{ containers.containerInstanceArns }}"