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352 lines
13 KiB
352 lines
13 KiB
import hashlib
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import json
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import os
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import shutil
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from socket import gethostname
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import yaml
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from django.conf import settings
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from django.utils import timezone
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from django.utils.translation import gettext as _
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from sshtunnel import SSHTunnelForwarder
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from assets.automations.methods import platform_automation_methods
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from common.utils import get_logger, lazyproperty, is_openssh_format_key, ssh_pubkey_gen
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from ops.ansible import JMSInventory, DefaultCallback, SuperPlaybookRunner
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from ops.ansible.interface import interface
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logger = get_logger(__name__)
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class SSHTunnelManager:
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def __init__(self, *args, **kwargs):
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self.gateway_servers = dict()
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@staticmethod
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def file_to_json(path):
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with open(path, 'r') as f:
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d = json.load(f)
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return d
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@staticmethod
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def json_to_file(path, data):
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with open(path, 'w') as f:
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json.dump(data, f, indent=4, sort_keys=True)
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def local_gateway_prepare(self, runner):
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info = self.file_to_json(runner.inventory)
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servers, not_valid = [], []
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for k, host in info['all']['hosts'].items():
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jms_asset, jms_gateway = host.get('jms_asset'), host.get('jms_gateway')
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if not jms_gateway:
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continue
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try:
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server = SSHTunnelForwarder(
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(jms_gateway['address'], jms_gateway['port']),
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ssh_username=jms_gateway['username'],
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ssh_password=jms_gateway['secret'],
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ssh_pkey=jms_gateway['private_key_path'],
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remote_bind_address=(jms_asset['address'], jms_asset['port'])
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)
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server.start()
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except Exception as e:
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err_msg = 'Gateway is not active: %s' % jms_asset.get('name', '')
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print(f'\033[31m {err_msg} 原因: {e} \033[0m\n')
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not_valid.append(k)
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else:
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local_bind_port = server.local_bind_port
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host['ansible_host'] = jms_asset['address'] = host[
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'login_host'] = interface.get_gateway_proxy_host()
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host['ansible_port'] = jms_asset['port'] = host['login_port'] = local_bind_port
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servers.append(server)
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# 网域不可连接的，就不继续执行此资源的后续任务了
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for a in set(not_valid):
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info['all']['hosts'].pop(a)
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self.json_to_file(runner.inventory, info)
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self.gateway_servers[runner.id] = servers
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def local_gateway_clean(self, runner):
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servers = self.gateway_servers.get(runner.id, [])
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for s in servers:
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try:
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s.stop()
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except Exception:
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pass
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class PlaybookCallback(DefaultCallback):
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def playbook_on_stats(self, event_data, **kwargs):
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super().playbook_on_stats(event_data, **kwargs)
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class BasePlaybookManager:
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bulk_size = 100
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ansible_account_policy = 'privileged_first'
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ansible_account_prefer = 'root,Administrator'
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def __init__(self, execution):
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self.execution = execution
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self.method_id_meta_mapper = {
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method['id']: method
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for method in self.platform_automation_methods
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if method['method'] == self.__class__.method_type()
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}
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# 根据执行方式就行分组, 不同资产的改密、推送等操作可能会使用不同的执行方式
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# 然后根据执行方式分组, 再根据 bulk_size 分组, 生成不同的 playbook
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self.playbooks = []
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params = self.execution.snapshot.get('params')
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self.params = params or {}
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def get_params(self, automation, method_type):
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method_attr = '{}_method'.format(method_type)
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method_params = '{}_params'.format(method_type)
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method_id = getattr(automation, method_attr)
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automation_params = getattr(automation, method_params)
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serializer = self.method_id_meta_mapper[method_id]['params_serializer']
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if serializer is None:
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return {}
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data = self.params.get(method_id)
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if not data:
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data = automation_params.get(method_id, {})
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params = serializer(data).data
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return params
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@property
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def platform_automation_methods(self):
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return platform_automation_methods
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@classmethod
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def method_type(cls):
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raise NotImplementedError
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def get_assets_group_by_platform(self):
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return self.execution.all_assets_group_by_platform()
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def prepare_runtime_dir(self):
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ansible_dir = settings.ANSIBLE_DIR
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task_name = self.execution.snapshot['name']
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dir_name = '{}_{}'.format(task_name.replace(' ', '_'), self.execution.id)
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path = os.path.join(
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ansible_dir, 'automations', self.execution.snapshot['type'],
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dir_name, timezone.now().strftime('%Y%m%d_%H%M%S')
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)
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if not os.path.exists(path):
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os.makedirs(path, exist_ok=True, mode=0o755)
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return path
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@lazyproperty
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def runtime_dir(self):
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path = self.prepare_runtime_dir()
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if settings.DEBUG_DEV:
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msg = 'Ansible runtime dir: {}'.format(path)
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print(msg)
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return path
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@staticmethod
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def write_cert_to_file(filename, content):
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with open(filename, 'w') as f:
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f.write(content)
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return filename
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def convert_cert_to_file(self, host, path_dir):
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if not path_dir:
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return host
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specific = host.get('jms_asset', {}).get('secret_info', {})
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cert_fields = ('ca_cert', 'client_key', 'client_cert')
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filtered = list(filter(lambda x: specific.get(x), cert_fields))
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if not filtered:
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return host
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cert_dir = os.path.join(path_dir, 'certs')
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if not os.path.exists(cert_dir):
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os.makedirs(cert_dir, 0o700, True)
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for f in filtered:
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result = self.write_cert_to_file(
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os.path.join(cert_dir, f), specific.get(f)
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)
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os.chmod(result, 0o600)
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host['jms_asset']['secret_info'][f] = result
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return host
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def host_callback(self, host, automation=None, **kwargs):
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method_type = self.__class__.method_type()
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enabled_attr = '{}_enabled'.format(method_type)
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method_attr = '{}_method'.format(method_type)
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method_enabled = automation and \
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getattr(automation, enabled_attr) and \
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getattr(automation, method_attr) and \
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getattr(automation, method_attr) in self.method_id_meta_mapper
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if not method_enabled:
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host['error'] = _('{} disabled'.format(self.__class__.method_type()))
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return host
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host = self.convert_cert_to_file(host, kwargs.get('path_dir'))
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host['params'] = self.get_params(automation, method_type)
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return host
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@staticmethod
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def generate_public_key(private_key):
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return ssh_pubkey_gen(private_key=private_key, hostname=gethostname())
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@staticmethod
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def generate_private_key_path(secret, path_dir):
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key_name = '.' + hashlib.md5(secret.encode('utf-8')).hexdigest()
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key_path = os.path.join(path_dir, key_name)
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if not os.path.exists(key_path):
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# https://github.com/ansible/ansible-runner/issues/544
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# ssh requires OpenSSH format keys to have a full ending newline.
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# It does not require this for old-style PEM keys.
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with open(key_path, 'w') as f:
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f.write(secret)
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if is_openssh_format_key(secret.encode('utf-8')):
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f.write("\n")
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os.chmod(key_path, 0o400)
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return key_path
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def generate_inventory(self, platformed_assets, inventory_path, protocol):
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inventory = JMSInventory(
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assets=platformed_assets,
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account_prefer=self.ansible_account_prefer,
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account_policy=self.ansible_account_policy,
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host_callback=self.host_callback,
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task_type=self.__class__.method_type(),
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protocol=protocol,
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)
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inventory.write_to_file(inventory_path)
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@staticmethod
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def generate_playbook(method, sub_playbook_dir):
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method_playbook_dir_path = method['dir']
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sub_playbook_path = os.path.join(sub_playbook_dir, 'project', 'main.yml')
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shutil.copytree(method_playbook_dir_path, os.path.dirname(sub_playbook_path))
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with open(sub_playbook_path, 'r') as f:
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plays = yaml.safe_load(f)
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for play in plays:
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play['hosts'] = 'all'
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with open(sub_playbook_path, 'w') as f:
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yaml.safe_dump(plays, f)
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return sub_playbook_path
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def get_runners(self):
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assets_group_by_platform = self.get_assets_group_by_platform()
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if settings.DEBUG_DEV:
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msg = 'Assets group by platform: {}'.format(dict(assets_group_by_platform))
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print(msg)
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runners = []
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for platform, assets in assets_group_by_platform.items():
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if not assets:
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continue
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if not platform.automation or not platform.automation.ansible_enabled:
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print(_(" - Platform {} ansible disabled").format(platform.name))
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continue
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assets_bulked = [assets[i:i + self.bulk_size] for i in range(0, len(assets), self.bulk_size)]
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for i, _assets in enumerate(assets_bulked, start=1):
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sub_dir = '{}_{}'.format(platform.name, i)
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playbook_dir = os.path.join(self.runtime_dir, sub_dir)
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inventory_path = os.path.join(self.runtime_dir, sub_dir, 'hosts.json')
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method_id = getattr(platform.automation, '{}_method'.format(self.__class__.method_type()))
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method = self.method_id_meta_mapper.get(method_id)
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if not method:
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logger.error("Method not found: {}".format(method_id))
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continue
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protocol = method.get('protocol')
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self.generate_inventory(_assets, inventory_path, protocol)
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playbook_path = self.generate_playbook(method, playbook_dir)
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if not playbook_path:
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continue
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runer = SuperPlaybookRunner(
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inventory_path,
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playbook_path,
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self.runtime_dir,
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callback=PlaybookCallback(),
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)
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with open(inventory_path, 'r') as f:
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inventory_data = json.load(f)
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if not inventory_data['all'].get('hosts'):
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continue
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runners.append(runer)
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return runners
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def on_host_success(self, host, result):
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pass
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def on_host_error(self, host, error, result):
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if settings.DEBUG_DEV:
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print('host error: {} -> {}'.format(host, error))
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def on_runner_success(self, runner, cb):
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summary = cb.summary
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for state, hosts in summary.items():
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for host in hosts:
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result = cb.host_results.get(host)
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if state == 'ok':
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self.on_host_success(host, result.get('ok', ''))
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elif state == 'skipped':
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pass
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else:
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error = hosts.get(host)
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self.on_host_error(
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host, error,
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result.get('failures', '')
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or result.get('dark', '')
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)
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def on_runner_failed(self, runner, e):
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print("Runner failed: {} {}".format(e, self))
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@staticmethod
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def json_dumps(data):
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return json.dumps(data, indent=4, sort_keys=True)
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def delete_runtime_dir(self):
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if settings.DEBUG_DEV:
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return
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shutil.rmtree(self.runtime_dir, ignore_errors=True)
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def run(self, *args, **kwargs):
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print(_(">>> Task preparation phase"), end="\n")
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runners = self.get_runners()
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if len(runners) > 1:
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print(_(">>> Executing tasks in batches, total {runner_count}").format(runner_count=len(runners)))
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elif len(runners) == 1:
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print(_(">>> Start executing tasks"))
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else:
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print(_(">>> No tasks need to be executed"), end="\n")
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self.execution.date_start = timezone.now()
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for i, runner in enumerate(runners, start=1):
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if len(runners) > 1:
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print(_(">>> Begin executing batch {index} of tasks").format(index=i))
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ssh_tunnel = SSHTunnelManager()
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ssh_tunnel.local_gateway_prepare(runner)
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try:
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kwargs.update({"clean_workspace": False})
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cb = runner.run(**kwargs)
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self.on_runner_success(runner, cb)
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except Exception as e:
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self.on_runner_failed(runner, e)
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finally:
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ssh_tunnel.local_gateway_clean(runner)
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print('\n')
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self.execution.status = 'success'
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self.execution.date_finished = timezone.now()
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self.execution.save()
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self.delete_runtime_dir()
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