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community.general/plugins/modules/source_control/bitbucket/bitbucket_pipeline_known_host.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2019, Evgeniy Krysanov <evgeniy.krysanov@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community',
}
DOCUMENTATION = r'''
---
module: bitbucket_pipeline_known_host
short_description: Manages Bitbucket pipeline known hosts
description:
- Manages Bitbucket pipeline known hosts under the "SSH Keys" menu.
- The host fingerprint will be retrieved automatically, but in case of an error, one can use I(key) field to specify it manually.
author:
- Evgeniy Krysanov (@catcombo)
requirements:
- paramiko
options:
client_id:
description:
- The OAuth consumer key.
- If not set the environment variable C(BITBUCKET_CLIENT_ID) will be used.
type: str
client_secret:
description:
- The OAuth consumer secret.
- If not set the environment variable C(BITBUCKET_CLIENT_SECRET) will be used.
type: str
repository:
description:
- The repository name.
type: str
required: true
username:
description:
- The repository owner.
type: str
required: true
name:
description:
- The FQDN of the known host.
type: str
required: true
key:
description:
- The public key.
type: str
state:
description:
- Indicates desired state of the record.
type: str
required: true
choices: [ absent, present ]
notes:
- Bitbucket OAuth consumer key and secret can be obtained from Bitbucket profile -> Settings -> Access Management -> OAuth.
- Check mode is supported.
'''
EXAMPLES = r'''
- name: Create known hosts from the list
bitbucket_pipeline_known_host:
repository: 'bitbucket-repo'
username: bitbucket_username
name: '{{ item }}'
state: present
with_items:
- bitbucket.org
- example.com
- name: Remove known host
bitbucket_pipeline_known_host:
repository: bitbucket-repo
username: bitbucket_username
name: bitbucket.org
state: absent
- name: Specify public key file
bitbucket_pipeline_known_host:
repository: bitbucket-repo
username: bitbucket_username
name: bitbucket.org
key: '{{lookup("file", "bitbucket.pub") }}'
state: absent
'''
RETURN = r''' # '''
import socket
try:
import paramiko
HAS_PARAMIKO = True
except ImportError:
HAS_PARAMIKO = False
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.community.general.plugins.module_utils.source_control.bitbucket import BitbucketHelper
error_messages = {
'invalid_params': 'Account or repository was not found',
'unknown_key_type': 'Public key type is unknown',
}
BITBUCKET_API_ENDPOINTS = {
'known-host-list': '%s/2.0/repositories/{username}/{repo_slug}/pipelines_config/ssh/known_hosts/' % BitbucketHelper.BITBUCKET_API_URL,
'known-host-detail': '%s/2.0/repositories/{username}/{repo_slug}/pipelines_config/ssh/known_hosts/{known_host_uuid}' % BitbucketHelper.BITBUCKET_API_URL,
}
def get_existing_known_host(module, bitbucket):
"""
Search for a host in Bitbucket pipelines known hosts
with the name specified in module param `name`
:param module: instance of the :class:`AnsibleModule`
:param bitbucket: instance of the :class:`BitbucketHelper`
:return: existing host or None if not found
:rtype: dict or None
Return example::
{
'type': 'pipeline_known_host',
'uuid': '{21cc0590-bebe-4fae-8baf-03722704119a7}'
'hostname': 'bitbucket.org',
'public_key': {
'type': 'pipeline_ssh_public_key',
'md5_fingerprint': 'md5:97:8c:1b:f2:6f:14:6b:4b:3b:ec:aa:46:46:74:7c:40',
'sha256_fingerprint': 'SHA256:zzXQOXSFBEiUtuE8AikoYKwbHaxvSc0ojez9YXaGp1A',
'key_type': 'ssh-rsa',
'key': 'AAAAB3NzaC1yc2EAAAABIwAAAQEAubiN81eDcafrgMeLzaFPsw2kN...seeFVBoGqzHM9yXw=='
},
}
"""
content = {
'next': BITBUCKET_API_ENDPOINTS['known-host-list'].format(
username=module.params['username'],
repo_slug=module.params['repository'],
)
}
# Look through all response pages in search of hostname we need
while 'next' in content:
info, content = bitbucket.request(
api_url=content['next'],
method='GET',
)
if info['status'] == 404:
module.fail_json(msg='Invalid `repository` or `username`.')
if info['status'] != 200:
module.fail_json(msg='Failed to retrieve list of known hosts: {0}'.format(info))
host = next(filter(lambda v: v['hostname'] == module.params['name'], content['values']), None)
if host is not None:
return host
return None
def get_host_key(module, hostname):
"""
Fetches public key for specified host
:param module: instance of the :class:`AnsibleModule`
:param hostname: host name
:return: key type and key content
:rtype: tuple
Return example::
(
'ssh-rsa',
'AAAAB3NzaC1yc2EAAAABIwAAA...SBne8+seeFVBoGqzHM9yXw==',
)
"""
try:
sock = socket.socket()
sock.connect((hostname, 22))
except socket.error:
module.fail_json(msg='Error opening socket to {0}'.format(hostname))
try:
trans = paramiko.transport.Transport(sock)
trans.start_client()
host_key = trans.get_remote_server_key()
except paramiko.SSHException:
module.fail_json(msg='SSH error on retrieving {0} server key'.format(hostname))
trans.close()
sock.close()
key_type = host_key.get_name()
key = host_key.get_base64()
return key_type, key
def create_known_host(module, bitbucket):
hostname = module.params['name']
key_param = module.params['key']
if key_param is None:
key_type, key = get_host_key(module, hostname)
elif ' ' in key_param:
key_type, key = key_param.split(' ', 1)
else:
module.fail_json(msg=error_messages['unknown_key_type'])
info, content = bitbucket.request(
api_url=BITBUCKET_API_ENDPOINTS['known-host-list'].format(
username=module.params['username'],
repo_slug=module.params['repository'],
),
method='POST',
data={
'hostname': hostname,
'public_key': {
'key_type': key_type,
'key': key,
}
},
)
if info['status'] == 404:
module.fail_json(msg=error_messages['invalid_params'])
if info['status'] != 201:
module.fail_json(msg='Failed to create known host `{hostname}`: {info}'.format(
hostname=module.params['hostname'],
info=info,
))
def delete_known_host(module, bitbucket, known_host_uuid):
info, content = bitbucket.request(
api_url=BITBUCKET_API_ENDPOINTS['known-host-detail'].format(
username=module.params['username'],
repo_slug=module.params['repository'],
known_host_uuid=known_host_uuid,
),
method='DELETE',
)
if info['status'] == 404:
module.fail_json(msg=error_messages['invalid_params'])
if info['status'] != 204:
module.fail_json(msg='Failed to delete known host `{hostname}`: {info}'.format(
hostname=module.params['name'],
info=info,
))
def main():
argument_spec = BitbucketHelper.bitbucket_argument_spec()
argument_spec.update(
repository=dict(type='str', required=True),
username=dict(type='str', required=True),
name=dict(type='str', required=True),
key=dict(type='str'),
state=dict(type='str', choices=['present', 'absent'], required=True),
)
module = AnsibleModule(
argument_spec=argument_spec,
supports_check_mode=True,
)
if (module.params['key'] is None) and (not HAS_PARAMIKO):
module.fail_json(msg='`paramiko` package not found, please install it.')
bitbucket = BitbucketHelper(module)
# Retrieve access token for authorized API requests
bitbucket.fetch_access_token()
# Retrieve existing known host
existing_host = get_existing_known_host(module, bitbucket)
state = module.params['state']
changed = False
# Create new host in case it doesn't exists
if not existing_host and (state == 'present'):
if not module.check_mode:
create_known_host(module, bitbucket)
changed = True
# Delete host
elif existing_host and (state == 'absent'):
if not module.check_mode:
delete_known_host(module, bitbucket, existing_host['uuid'])
changed = True
module.exit_json(changed=changed)
if __name__ == '__main__':
main()