docker_swarm_service: Add hosts option (#53290)

* Add hosts option

* Add changelog fragment
pull/53354/head
Hannes Ljungberg 6 years ago committed by John R Barker
parent 1323dca9e9
commit 7a130d5446

@ -0,0 +1,2 @@
minor_changes:
- "docker_swarm_service - Added support for ``hosts`` parameter."

@ -121,6 +121,14 @@ options:
- Corresponds to the C(--hostname) option of C(docker service create).
- Requires API version >= 1.25.
type: str
hosts:
description:
- Dict of host-to-IP mappings, where each host name is a key in the dictionary.
Each host name will be added to the container's /etc/hosts file.
- Corresponds to the C(--host) option of C(docker service create).
- Requires API version >= 1.25.
type: dict
version_added: "2.8"
tty:
description:
- Allocate a pseudo-TTY.
@ -934,6 +942,7 @@ class DockerService(DockerBaseClass):
self.healthcheck = None
self.healthcheck_disabled = None
self.hostname = None
self.hosts = None
self.tty = None
self.dns_search = None
self.dns_options = None
@ -990,6 +999,7 @@ class DockerService(DockerBaseClass):
'healthcheck': self.healthcheck,
'healthcheck_disabled': self.healthcheck_disabled,
'hostname': self.hostname,
'hosts': self.hosts,
'env': self.env,
'force_update': self.force_update,
'groups': self.groups,
@ -1202,6 +1212,7 @@ class DockerService(DockerBaseClass):
s.dns_options = ap['dns_options']
s.healthcheck, s.healthcheck_disabled = parse_healthcheck(ap['healthcheck'])
s.hostname = ap['hostname']
s.hosts = ap['hosts']
s.tty = ap['tty']
s.labels = ap['labels']
s.container_labels = ap['container_labels']
@ -1420,6 +1431,8 @@ class DockerService(DockerBaseClass):
differences.add('healthcheck', parameter=self.healthcheck, active=os.healthcheck)
if self.hostname is not None and self.hostname != os.hostname:
differences.add('hostname', parameter=self.hostname, active=os.hostname)
if self.hosts is not None and self.hosts != (os.hosts or {}):
differences.add('hosts', parameter=self.hosts, active=os.hosts)
if self.tty is not None and self.tty != os.tty:
differences.add('tty', parameter=self.tty, active=os.tty)
if self.working_dir is not None and self.working_dir != os.working_dir:
@ -1544,6 +1557,8 @@ class DockerService(DockerBaseClass):
container_spec_args['healthcheck'] = types.Healthcheck(**self.healthcheck)
if self.hostname is not None:
container_spec_args['hostname'] = self.hostname
if self.hosts is not None:
container_spec_args['hosts'] = self.hosts
if self.stop_grace_period is not None:
container_spec_args['stop_grace_period'] = self.stop_grace_period
if self.stop_signal is not None:
@ -1762,6 +1777,11 @@ class DockerServiceManager(object):
ds.dns_options = dns_config.get('Options')
ds.hostname = task_template_data['ContainerSpec'].get('Hostname')
hosts = task_template_data['ContainerSpec'].get('Hosts')
if hosts:
hosts = [host.split(' ', 1) for host in hosts]
ds.hosts = dict((hostname, ip) for ip, hostname in hosts)
ds.tty = task_template_data['ContainerSpec'].get('TTY')
placement = task_template_data.get('Placement')
@ -2111,6 +2131,7 @@ def main():
retries=dict(type='int'),
)),
hostname=dict(type='str'),
hosts=dict(type='dict'),
labels=dict(type='dict'),
container_labels=dict(type='dict'),
mode=dict(type='str', default='replicated'),
@ -2179,6 +2200,7 @@ def main():
force_update=dict(docker_py_version='2.1.0', docker_api_version='1.25'),
healthcheck=dict(docker_py_version='2.0.0', docker_api_version='1.25'),
hostname=dict(docker_py_version='2.2.0', docker_api_version='1.25'),
hosts=dict(docker_py_version='2.6.0', docker_api_version='1.25'),
groups=dict(docker_py_version='2.6.0', docker_api_version='1.25'),
tty=dict(docker_py_version='2.4.0', docker_api_version='1.25'),
secrets=dict(docker_py_version='2.1.0', docker_api_version='1.25'),

@ -1064,6 +1064,58 @@
- "('version is ' ~ docker_api_version ~'. Minimum version required is 1.25') in hostname_1.msg"
when: docker_api_version is version('1.25', '<')
###################################################################
## hosts ##########################################################
###################################################################
- name: hosts
docker_swarm_service:
name: "{{ service_name }}"
image: alpine:3.8
command: '/bin/sh -v -c "sleep 10m"'
hosts:
example.com: 1.2.3.4
example.org: 4.3.2.1
register: hosts_1
- name: hosts (idempotency)
docker_swarm_service:
name: "{{ service_name }}"
image: alpine:3.8
command: '/bin/sh -v -c "sleep 10m"'
hosts:
example.com: 1.2.3.4
example.org: 4.3.2.1
register: hosts_2
- name: hosts (change)
docker_swarm_service:
name: "{{ service_name }}"
image: alpine:3.8
command: '/bin/sh -v -c "sleep 10m"'
hosts:
example.com: 1.2.3.4
register: hosts_3
- name: cleanup
docker_swarm_service:
name: "{{ service_name }}"
state: absent
diff: no
- assert:
that:
- hosts_1 is changed
- hosts_2 is not changed
- hosts_3 is changed
when: docker_api_version is version('1.25', '>=')
- assert:
that:
- hosts_1 is failed
- "('version is ' ~ docker_api_version ~'. Minimum version required is 1.25') in hosts_1.msg"
when: docker_api_version is version('1.25', '<')
###################################################################
## image ##########################################################
###################################################################

@ -16,6 +16,7 @@ service_expected_output:
healthcheck: null
healthcheck_disabled: null
hostname: null
hosts: null
image: busybox
labels: null
limit_cpu: null

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