How Ansible knows whether a docker image has changed?

[Dr. Hector Valverde Pareja]

 Hi all,

I'm using the Docker module Ansible provides and I'm currently facing a little problem with it. I need further information to find the solution.

Here is the task I'm using in the playbook:

- name: Run the docker container for the service in QA
  docker:
    docker_api_version: "1.17"
    name: "{{ service }}"
    image: "{{docker_image_uri}}:{{ docker_tag }}"
    env: "{{ ENV_VARS }}"
    state: reloaded
    pull: always
    ports: "{{http_port}}:5000"

I'm using exactly the same code for 4 different services I'm deploying but I have the following problem with two of them:

The docker container is always reloaded regardless the docker image has changed or not

Given that situation, I need to understand how Ansible makes the decision to restart the container or not.

I hope I've been clear enough in my question. Any insight?

Thanks in advance.

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