- name: Create a Swarm cluster
  docker_swarm:
    state: present
    advertise_addr: "{{ansible_default_ipv4.address}}"

- name: install docker_stack python requirements
  pip:
    name: jsondiff,pyyaml

- name: Create a stack without name
  register: output
  docker_stack:
    state: present
  ignore_errors: yes

- name: assert failure when name not set
  assert:
    that:
    - output is failed
    - 'output.msg == "missing required arguments: name"'

- name: Create a stack without compose
  register: output
  docker_stack:
    name: test_stack
  ignore_errors: yes

- name: assert failure when compose not set
  assert:
    that:
    - output is failed
    - 'output.msg == "compose parameter must be a list containing at least one element"'

- name: Ensure stack is absent
  register: output
  docker_stack:
    state: absent
    name: test_stack
    absent_retries: 30

- name: Copy compose files
  copy:
    src: "{{item}}"
    dest: "{{output_dir}}/"
  with_items:
  - stack_compose_base.yml
  - stack_compose_overrides.yml

- name: Create stack with compose file
  register: output
  docker_stack:
    state: present
    name: test_stack
    compose:
    - "{{output_dir}}/stack_compose_base.yml"

- name: assert test_stack changed on stack creation with compose file
  assert:
    that:
    - output is changed

# FIXME: updating the stack prevents leaving the swarm on Shippable
#- name: Update stack with YAML
#  register: output
#  docker_stack:
#    state: present
#    name: test_stack
#    compose:
#    - "{{stack_compose_base}}"
#    - "{{stack_compose_overrides}}"
#
#- name: assert test_stack correctly changed on update with yaml
#  assert:
#    that:
#    - output is changed
#    - output.docker_stack_spec_diff == stack_update_expected_diff

- name: Delete stack
  register: output
  docker_stack:
    state: absent
    name: test_stack
    absent_retries: 30

- name: assert delete of existing stack returns changed
  assert:
    that:
    - output is changed

- name: Delete stack again
  register: output
  docker_stack:
    state: absent
    name: test_stack
    absent_retries: 30

- name: assert state=absent idempotency
  assert:
    that:
    - output is not changed

- name: Remove a Swarm cluster
  docker_swarm:
    state: absent
    force: true