Using Ansible docker_service module to deploy service to swarm

Archives Ansible Project
1

I’m trying to deploy a Docker service into swarm but always ending up with running container on my localhost (the one I use as a docker swarm manager) and no service

Here’s my setup:

I have 3 node Docker (v. 1.12.1) swarm that includes one host running as manager and two worker nodes all running on CentOS 7. On the manager node (localhost) I run Ansible (v. 2.1.1.0) playbook and the swarm is already configured and is running

Swarm: active
 NodeID: d9h5xa832ax7wzeq8q44fjld3
 Is Manager: true
 ClusterID: 9cztoin3gy2ntbwehsmrkjuxi
 Managers: 1
 Nodes: 3
 Orchestration:
  Task History Retention Limit: 5
 Raft:
  Snapshot Interval: 10000
  Heartbeat Tick: 1
  Election Tick: 3
 Dispatcher:
  Heartbeat Period: 5 seconds
 CA Configuration:
  Expiry Duration: 3 months
 Node Address: 10.25.190.209

Starting with a playbook that has this code

- hosts: localhost
  name: Run JMeter test
  vars_files:
    - user.config.yml
  vars:
    execute_tpcds_test : "{{ run_tpcds_test }}"    
  roles:
    - { role: run_jmeter, when: execute_tpcds_test is defined and execute_tpcds_test ==1 }

Which calls this role:

- name: Deploy tpcds_tpg service to swarm
  docker_service:
    project_name: tpcds-tpg
    definition:
      version: '2'
      services:
        run_tests: 
          image: 'pbench/tpcds_tpg'
          volumes: 
            - /opt/pbench/run_output/
          command: ./run_jmeter.sh "{{jmeter_output_dir}}" 
  register: output
- debug: var=output

When I run ansible-playbook ./site.yml I end up with a running container. Doing docker ps -adisplays

[pdo@sdl02133 tpcds-tpg]$ docker ps -a
CONTAINER ID        IMAGE              COMMAND                  CREATED             STATUS              PORTS               NAMES
fef245b41365        pbench/tpcds_tpg   "./run_jmeter.sh /opt"   21 seconds ago      Up 20 seconds                           tpcdstpg_run_tests_1

And doing docker service ls shows no services running so it looks like docker_service deploys my image as a local container and not as a service on the swarm

So my assumption was that if I have an active swarm on the machine that is a swarm manager and I use Ansible docker_service module, then it will automatically be aware of the swarm and deploy the service to it. Looks like my assumption is wrong and I cannot find any docs, blog posts, etc. that would hint me what to do and what I am missing. Ansible experts please help!

P.S. This is a duplicate of post on Stackoverflow. You are welcome to answer there and claim points