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---
- block:
- name: Make sure we're not already using Docker swarm
docker_swarm:
state: absent
force: true
- name: Try to get docker_node_info when docker is not running in swarm mode
docker_node_info:
ignore_errors: yes
register: output
- name: assert failure when called when swarm is not in use or not run on manager node
assert:
that:
- 'output is failed'
- 'output.msg == "Error running docker swarm module: must run on swarm manager node"'
- name: Create a Swarm cluster
docker_swarm:
state: present
advertise_addr: "{{ansible_default_ipv4.address | default('127.0.0.1')}}"
register: output
- name: assert changed when create a new swarm cluster
assert:
that:
- 'output is changed'
- 'output.actions[0] | regex_search("New Swarm cluster created: ")'
- 'output.swarm_facts.JoinTokens.Manager'
- 'output.swarm_facts.JoinTokens.Worker'
- name: Try to get docker_node_info when docker is running in swarm mode and as manager
docker_node_info:
register: output
- name: assert reading docker swarm node facts
assert:
that:
- 'output.nodes | length > 0'
- 'output.nodes[0].ID is string'
- name: Try to get docker_node_info using the self parameter
docker_node_info:
self: yes
register: output
- name: assert reading swarm facts with list of nodes option
assert:
that:
- 'output.nodes | length == 1'
- 'output.nodes[0].ID is string'
- name: Get local docker node name
set_fact:
localnodename: "{{ output.nodes[0].Description.Hostname }}"
- name: Try to get docker_node_info using the local node name as parameter
docker_node_info:
name: "{{ localnodename }}"
register: output
- name: assert reading reading swarm facts and using node filter (random node name)
assert:
that:
- 'output.nodes | length == 1'
- 'output.nodes[0].ID is string'
- name: Create random name
set_fact:
randomnodename: "{{ 'node-%0x' % ((2**32) | random) }}"
- name: Try to get docker_node_info using random node name as parameter
docker_node_info:
name: "{{ randomnodename }}"
register: output
- name: assert reading reading swarm facts and using node filter (random node name)
assert:
that:
- 'output.nodes | length == 0'
always:
- name: Cleanup
docker_swarm:
state: absent
force: true
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