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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = r'''
---
module: atomic_image
short_description: Manage the container images on the atomic host platform
description:
- Manage the container images on the atomic host platform.
- Allows to execute the commands specified by the RUN label in the container image when present.
author:
- Saravanan KR (@krsacme)
notes:
- Host should support C(atomic) command.
requirements:
- atomic
extends_documentation_fragment:
- community.general.attributes
attributes:
check_mode:
support: none
diff_mode:
support: none
options:
backend:
description:
- Define the backend where the image is pulled.
choices: [ 'docker', 'ostree' ]
type: str
name:
description:
- Name of the container image.
required: true
type: str
state:
description:
- The state of the container image.
- The state V(latest) will ensure container image is upgraded to the latest version and forcefully restart container, if running.
choices: [ 'absent', 'latest', 'present' ]
default: 'latest'
type: str
started:
description:
- Start or Stop the container.
type: bool
default: true
'''
EXAMPLES = r'''
- name: Execute the run command on rsyslog container image (atomic run rhel7/rsyslog)
community.general.atomic_image:
name: rhel7/rsyslog
state: latest
- name: Pull busybox to the OSTree backend
community.general.atomic_image:
name: busybox
state: latest
backend: ostree
'''
RETURN = r'''
msg:
description: The command standard output
returned: always
type: str
sample: 'Using default tag: latest ...'
'''
import traceback
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.common.text.converters import to_native
def do_upgrade(module, image):
atomic_bin = module.get_bin_path('atomic')
args = [atomic_bin, 'update', '--force', image]
rc, out, err = module.run_command(args, check_rc=False)
if rc != 0: # something went wrong emit the msg
module.fail_json(rc=rc, msg=err)
elif 'Image is up to date' in out:
return False
return True
def core(module):
image = module.params['name']
state = module.params['state']
started = module.params['started']
backend = module.params['backend']
is_upgraded = False
module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C')
atomic_bin = module.get_bin_path('atomic')
out = {}
err = {}
rc = 0
if backend:
if state == 'present' or state == 'latest':
args = [atomic_bin, 'pull', "--storage=%s" % backend, image]
rc, out, err = module.run_command(args, check_rc=False)
if rc < 0:
module.fail_json(rc=rc, msg=err)
else:
out_run = ""
if started:
args = [atomic_bin, 'run', "--storage=%s" % backend, image]
rc, out_run, err = module.run_command(args, check_rc=False)
if rc < 0:
module.fail_json(rc=rc, msg=err)
changed = "Extracting" in out or "Copying blob" in out
module.exit_json(msg=(out + out_run), changed=changed)
elif state == 'absent':
args = [atomic_bin, 'images', 'delete', "--storage=%s" % backend, image]
rc, out, err = module.run_command(args, check_rc=False)
if rc < 0:
module.fail_json(rc=rc, msg=err)
else:
changed = "Unable to find" not in out
module.exit_json(msg=out, changed=changed)
return
if state == 'present' or state == 'latest':
if state == 'latest':
is_upgraded = do_upgrade(module, image)
if started:
args = [atomic_bin, 'run', image]
else:
args = [atomic_bin, 'install', image]
elif state == 'absent':
args = [atomic_bin, 'uninstall', image]
rc, out, err = module.run_command(args, check_rc=False)
if rc < 0:
module.fail_json(rc=rc, msg=err)
elif rc == 1 and 'already present' in err:
module.exit_json(restult=err, changed=is_upgraded)
elif started and 'Container is running' in out:
module.exit_json(result=out, changed=is_upgraded)
else:
module.exit_json(msg=out, changed=True)
def main():
module = AnsibleModule(
argument_spec=dict(
backend=dict(type='str', choices=['docker', 'ostree']),
name=dict(type='str', required=True),
state=dict(type='str', default='latest', choices=['absent', 'latest', 'present']),
started=dict(type='bool', default=True),
),
)
# Verify that the platform supports atomic command
dummy = module.get_bin_path('atomic', required=True)
try:
core(module)
except Exception as e:
module.fail_json(msg=to_native(e), exception=traceback.format_exc())
if __name__ == '__main__':
main()
|
