# ~*~ coding: utf-8 ~*~
import json
import os
from collections import defaultdict
from django.utils.translation import gettext as _
__all__ = ['JMSInventory']
class JMSInventory:
def __init__(self, assets, account_policy='privileged_first',
account_prefer='root,Administrator', host_callback=None):
"""
:param assets:
:param account_prefer: account username name if not set use account_policy
:param account_policy: privileged_only, privileged_first, skip
"""
self.assets = self.clean_assets(assets)
self.account_prefer = account_prefer
self.account_policy = account_policy
self.host_callback = host_callback
self.exclude_hosts = {}
@staticmethod
def clean_assets(assets):
from assets.models import Asset
asset_ids = [asset.id for asset in assets]
assets = Asset.objects.filter(id__in=asset_ids, is_active=True) \
.prefetch_related('platform', 'domain', 'accounts')
return assets
@staticmethod
def group_by_platform(assets):
groups = defaultdict(list)
for asset in assets:
groups[asset.platform].append(asset)
return groups
@staticmethod
def make_proxy_command(gateway):
proxy_command_list = [
"ssh", "-o", "Port={}".format(gateway.port),
"-o", "StrictHostKeyChecking=no",
"{}@{}".format(gateway.username, gateway.address),
"-W", "%h:%p", "-q",
]
if gateway.password:
proxy_command_list.insert(
0, "sshpass -p '{}'".format(gateway.password)
)
if gateway.private_key:
proxy_command_list.append("-i {}".format(gateway.private_key_path))
proxy_command = "'-o ProxyCommand={}'".format(
" ".join(proxy_command_list)
)
return {"ansible_ssh_common_args": proxy_command}
@staticmethod
def make_account_ansible_vars(account):
var = {
'ansible_user': account.username,
}
if not account.secret:
return var
if account.secret_type == 'password':
var['ansible_password'] = account.secret
elif account.secret_type == 'ssh_key':
var['ansible_ssh_private_key_file'] = account.private_key_path
return var
def make_ssh_account_vars(self, host, asset, account, automation, protocols, platform, gateway):
if not account:
host['error'] = _("No account available")
return host
ssh_protocol_matched = list(filter(lambda x: x.name == 'ssh', protocols))
ssh_protocol = ssh_protocol_matched[0] if ssh_protocol_matched else None
host['ansible_host'] = asset.address
host['ansible_port'] = ssh_protocol.port if ssh_protocol else 22
su_from = account.su_from
if platform.su_enabled and su_from:
host.update(self.make_account_ansible_vars(su_from))
become_method = 'sudo' if platform.su_method != 'su' else 'su'
host['ansible_become'] = True
host['ansible_become_method'] = 'sudo'
host['ansible_become_user'] = account.username
if become_method == 'sudo':
host['ansible_become_password'] = su_from.secret
else:
host['ansible_become_password'] = account.secret
else:
host.update(self.make_account_ansible_vars(account))
if gateway:
host.update(self.make_proxy_command(gateway))
def asset_to_host(self, asset, account, automation, protocols, platform):
host = {
'name': '{}'.format(asset.name),
'jms_asset': {
'id': str(asset.id), 'name': asset.name, 'address': asset.address,
'type': asset.type, 'category': asset.category,
'protocol': asset.protocol, 'port': asset.port,
'spec_info': asset.spec_info, 'secret_info': asset.secret_info,
'protocols': [{'name': p.name, 'port': p.port} for p in protocols],
},
'jms_account': {
'id': str(account.id), 'username': account.username,
'secret': account.secret, 'secret_type': account.secret_type
} if account else None
}
if host['jms_account'] and asset.platform.type == 'oracle':
host['jms_account']['mode'] = 'sysdba' if account.privileged else None
ansible_config = dict(automation.ansible_config)
ansible_connection = ansible_config.get('ansible_connection', 'ssh')
host.update(ansible_config)
gateway = None
if not asset.is_gateway and asset.domain:
gateway = asset.domain.select_gateway()
if ansible_connection == 'local':
if gateway:
host['ansible_host'] = gateway.address
host['ansible_port'] = gateway.port
host['ansible_user'] = gateway.username
host['ansible_password'] = gateway.password
host['ansible_connection'] = 'smart'
else:
host['ansible_connection'] = 'local'
else:
self.make_ssh_account_vars(host, asset, account, automation, protocols, platform, gateway)
return host
def select_account(self, asset):
accounts = list(asset.accounts.filter(is_active=True))
if not accounts:
return None
account_selected = None
account_usernames = self.account_prefer
if isinstance(self.account_prefer, str):
account_usernames = self.account_prefer.split(',')
# 优先使用提供的名称
if account_usernames:
account_matched = list(filter(lambda account: account.username in account_usernames, accounts))
account_selected = account_matched[0] if account_matched else None
if account_selected or self.account_policy == 'skip':
return account_selected
if self.account_policy in ['privileged_only', 'privileged_first']:
account_matched = list(filter(lambda account: account.privileged, accounts))
account_selected = account_matched[0] if account_matched else None
if account_selected:
return account_selected
if self.account_policy == 'privileged_first':
account_selected = accounts[0] if accounts else None
return account_selected
def generate(self, path_dir):
hosts = []
platform_assets = self.group_by_platform(self.assets)
for platform, assets in platform_assets.items():
automation = platform.automation
for asset in assets:
protocols = asset.protocols.all()
account = self.select_account(asset)
host = self.asset_to_host(asset, account, automation, protocols, platform)
if not automation.ansible_enabled:
host['error'] = _('Ansible disabled')
if self.host_callback is not None:
host = self.host_callback(
host, asset=asset, account=account,
platform=platform, automation=automation,
path_dir=path_dir
)
if isinstance(host, list):
hosts.extend(host)
else:
hosts.append(host)
exclude_hosts = list(filter(lambda x: x.get('error'), hosts))
if exclude_hosts:
print(_("Skip hosts below:"))
for i, host in enumerate(exclude_hosts, start=1):
print("{}: [{}] \t{}".format(i, host['name'], host['error']))
self.exclude_hosts[host['name']] = host['error']
hosts = list(filter(lambda x: not x.get('error'), hosts))
data = {'all': {'hosts': {}}}
for host in hosts:
name = host.pop('name')
data['all']['hosts'][name] = host
return data
def write_to_file(self, path):
path_dir = os.path.dirname(path)
if not os.path.exists(path_dir):
os.makedirs(path_dir, 0o700, True)
data = self.generate(path_dir)
with open(path, 'w') as f:
f.write(json.dumps(data, indent=4))