2fd5bcc7e2
The recommended way to import from urllib is to use six.moves module, instead of catching import errors. Change-Id: I5070d8c8c227d482d854c61bed795e48bce4dfef
638 lines
25 KiB
Python
638 lines
25 KiB
Python
# Copyright 2016 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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from __future__ import print_function
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import argparse
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import glob
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import logging
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import netaddr
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import os
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import pwd
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import re
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import shutil
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import six
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import subprocess
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import sys
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import tempfile
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import time
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import traceback
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import yaml
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from cliff import command
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from heatclient.common import event_utils
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from heatclient.common import template_utils
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from openstackclient.i18n import _
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from six.moves import configparser
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from six.moves.urllib import error as url_error
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from six.moves.urllib import request
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from tripleoclient import constants
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from tripleoclient import exceptions
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from tripleoclient import heat_launcher
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from tripleoclient import utils
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from tripleo_common.utils import passwords as password_utils
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# For ansible download
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from tripleo_common.inventory import TripleoInventory
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from tripleo_common.utils import config
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VIP_CIDR_PREFIX_LEN = 32
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class DeployUndercloud(command.Command):
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"""Deploy Undercloud (experimental feature)"""
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log = logging.getLogger(__name__ + ".DeployUndercloud")
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auth_required = False
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heat_pid = None
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tht_render = None
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tmp_env_dir = None
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tmp_env_file_name = None
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def _symlink(self, src, dst, tmpd='/tmp'):
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self.log.debug("Symlinking %s to %s, via temp dir %s" %
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(src, dst, tmpd))
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try:
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tmp = tempfile.mkdtemp(dir=tmpd)
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subprocess.check_call(['mkdir', '-p', dst])
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os.chmod(tmp, 0o755)
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for obj in os.listdir(src):
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tmpf = os.path.join(tmp, obj)
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os.symlink(os.path.join(src, obj), tmpf)
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os.rename(tmpf, os.path.join(dst, obj))
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except Exception:
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raise
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finally:
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shutil.rmtree(tmp, ignore_errors=True)
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def _get_hostname(self):
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p = subprocess.Popen(["hostname", "-s"], stdout=subprocess.PIPE)
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return p.communicate()[0].rstrip()
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def _configure_puppet(self):
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print('Configuring puppet modules symlinks ...')
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self._symlink(constants.TRIPLEO_PUPPET_MODULES,
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constants.PUPPET_MODULES,
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constants.PUPPET_BASE)
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def _wait_local_port_ready(self, api_port):
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count = 0
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while count < 30:
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time.sleep(1)
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count += 1
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try:
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request.urlopen("http://127.0.0.1:%s/" % api_port, timeout=1)
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except url_error.HTTPError as he:
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if he.code == 300:
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return True
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pass
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except url_error.URLError:
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pass
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return False
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def _update_passwords_env(self, output_dir, passwords=None):
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pw_file = os.path.join(output_dir, 'tripleo-undercloud-passwords.yaml')
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undercloud_pw_file = os.path.join(output_dir,
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'undercloud-passwords.conf')
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stack_env = {'parameter_defaults': {}}
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# Getting passwords that were managed by instack-undercloud so
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# we can upgrade to a containerized undercloud and keep old passwords.
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legacy_env = {}
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if os.path.exists(undercloud_pw_file):
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config = configparser.ConfigParser()
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config.read(undercloud_pw_file)
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for k, v in config.items('auth'):
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# Manage exceptions
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if k == 'undercloud_db_password':
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k = 'MysqlRootPassword'
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elif k == 'undercloud_rabbit_username':
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k = 'RabbitUserName'
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elif k == 'undercloud_heat_encryption_key':
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k = 'HeatAuthEncryptionKey'
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else:
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k = ''.join(i.capitalize() for i in k.split('_')[1:])
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legacy_env[k] = v
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if os.path.exists(pw_file):
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with open(pw_file) as pf:
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stack_env = yaml.safe_load(pf.read())
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pw = password_utils.generate_passwords(stack_env=stack_env)
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stack_env['parameter_defaults'].update(pw)
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# Override what has been generated by tripleo-common with old passwords
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# if any.
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stack_env['parameter_defaults'].update(legacy_env)
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if passwords:
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# These passwords are the DefaultPasswords so we only
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# update if they don't already exist in stack_env
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for p, v in passwords.items():
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if p not in stack_env['parameter_defaults']:
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stack_env['parameter_defaults'][p] = v
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# Write out the password file in yaml for heat.
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# This contains sensitive data so ensure it's not world-readable
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with open(pw_file, 'w') as pf:
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yaml.safe_dump(stack_env, pf, default_flow_style=False)
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# Using chmod here instead of permissions on the open above so we don't
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# have to fight with umask.
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os.chmod(pw_file, 0o600)
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# Write out an instack undercloud compatible version.
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# This contains sensitive data so ensure it's not world-readable
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with open(undercloud_pw_file, 'w') as pf:
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pf.write('[auth]\n')
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for p, v in stack_env['parameter_defaults'].items():
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if 'Password' in p or 'Token' in p:
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# Convert camelcase from heat templates into the underscore
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# format used by instack undercloud.
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s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', p)
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pw_key = re.sub('([a-z0-9])([A-Z])',
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r'\1_\2', s1).lower()
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pf.write('undercloud_%s: %s\n' % (pw_key, v))
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os.chmod(undercloud_pw_file, 0o600)
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return pw_file
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def _generate_hosts_parameters(self, parsed_args, p_ip):
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hostname = self._get_hostname()
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domain = parsed_args.local_domain
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data = {
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'CloudName': p_ip,
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'CloudDomain': domain,
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'CloudNameInternal': '%s.internalapi.%s' % (hostname, domain),
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'CloudNameStorage': '%s.storage.%s' % (hostname, domain),
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'CloudNameStorageManagement': ('%s.storagemgmt.%s'
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% (hostname, domain)),
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'CloudNameCtlplane': '%s.ctlplane.%s' % (hostname, domain),
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}
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return data
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def _generate_portmap_parameters(self, ip_addr, cidr_prefixlen,
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ctlplane_vip_addr, public_vip_addr):
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hostname = self._get_hostname()
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data = {
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'ControlPlaneSubnetCidr': '%s' % cidr_prefixlen,
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'HostnameMap': {
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'undercloud-undercloud-0': '%s' % hostname
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},
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# The settings below allow us to inject a custom public
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# VIP. This requires use of the generated
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# ../network/ports/external_from_pool.yaml resource in t-h-t.
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'IPPool': {
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'external': [public_vip_addr]
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},
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'ExternalNetCidr': '%s/%s' % (public_vip_addr, cidr_prefixlen),
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# This requires use of the
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# ../deployed-server/deployed-neutron-port.yaml resource in t-h-t
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# We use this for the control plane VIP and also via
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# the environments/deployed-server-noop-ctlplane.yaml
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# for the server IP itself
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'DeployedServerPortMap': {
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('%s-ctlplane' % hostname): {
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'fixed_ips': [{'ip_address': ip_addr}],
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'subnets': [{'cidr': cidr_prefixlen}]
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},
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'control_virtual_ip': {
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'fixed_ips': [{'ip_address': ctlplane_vip_addr}],
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'subnets': [{'cidr': VIP_CIDR_PREFIX_LEN}]
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},
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'public_virtual_ip': {
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'fixed_ips': [{'ip_address': public_vip_addr}],
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'subnets': [{'cidr': VIP_CIDR_PREFIX_LEN}]
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}
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}
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}
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return data
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def _kill_heat(self, parsed_args):
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"""Tear down heat installer and temp files
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Kill the heat launcher/installer process.
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Teardown temp files created in the deployment process,
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when cleanup is requested.
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"""
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if not parsed_args.cleanup and self.tmp_env_dir:
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self.log.warning("Not cleaning temporary directory %s"
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% self.tmp_env_dir)
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elif self.tht_render:
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shutil.rmtree(self.tmp_env_dir, ignore_errors=True)
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# tht_render is a sub-dir of tmp_env_dir
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self.tht_render = None
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self.tmp_env_dir = None
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if self.tmp_env_file_name:
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try:
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os.remove(self.tmp_env_file_name)
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except Exception as ex:
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if 'No such file or directory' in six.text_type(ex):
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pass
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if self.heat_pid:
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self.heat_launch.kill_heat(self.heat_pid)
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pid, ret = os.waitpid(self.heat_pid, 0)
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self.heat_pid = None
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def _launch_heat(self, parsed_args):
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if not os.path.isdir(parsed_args.output_dir):
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os.mkdir(parsed_args.output_dir)
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# we do this as root to chown config files properly for docker, etc.
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if parsed_args.heat_native:
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self.heat_launch = heat_launcher.HeatNativeLauncher(
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parsed_args.heat_api_port,
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parsed_args.heat_container_image,
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parsed_args.heat_user)
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else:
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self.heat_launch = heat_launcher.HeatDockerLauncher(
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parsed_args.heat_api_port,
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parsed_args.heat_container_image,
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parsed_args.heat_user)
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# NOTE(dprince): we launch heat with fork exec because
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# we don't want it to inherit our args. Launching heat
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# as a "library" would be cool... but that would require
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# more refactoring. It runs a single process and we kill
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# it always below.
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self.heat_pid = os.fork()
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if self.heat_pid == 0:
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if parsed_args.heat_native:
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try:
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uid = pwd.getpwnam(parsed_args.heat_user).pw_uid
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gid = pwd.getpwnam(parsed_args.heat_user).pw_gid
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except KeyError:
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raise exceptions.DeploymentError(
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"Please create a %s user account before "
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"proceeding." % parsed_args.heat_user)
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os.setgid(gid)
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os.setuid(uid)
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self.heat_launch.heat_db_sync()
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# Exec() never returns.
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self.heat_launch.launch_heat()
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# NOTE(dprince): we use our own client here because we set
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# auth_required=False above because keystone isn't running when this
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# command starts
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tripleoclients = self.app.client_manager.tripleoclient
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orchestration_client = \
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tripleoclients.local_orchestration(parsed_args.heat_api_port)
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return orchestration_client
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def _setup_heat_environments(self, parsed_args):
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"""Process tripleo heat templates with jinja
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* Copy --templates content into a temporary working dir
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created under the --output_dir path as output_dir/tempwd/templates.
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* Process j2 templates there
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* Return the environments list for futher processing.
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The first two items are reserved for the
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overcloud-resource-registry-puppet.yaml and passwords files.
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"""
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self.tmp_env_dir = tempfile.mkdtemp(prefix='tripleoclient-',
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dir=parsed_args.output_dir)
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self.tht_render = os.path.join(self.tmp_env_dir, 'templates')
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shutil.copytree(parsed_args.templates, self.tht_render, symlinks=True)
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# generate jinja templates by its work dir location
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self.log.debug("Using roles file %s" % parsed_args.roles_file)
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process_templates = os.path.join(parsed_args.templates,
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'tools/process-templates.py')
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args = ['python', process_templates, '--roles-data',
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parsed_args.roles_file, '--output-dir', self.tht_render]
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subprocess.check_call(args, cwd=self.tht_render)
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print("Deploying templates in the directory {0}".format(
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os.path.abspath(self.tht_render)))
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self.log.debug("Creating Environment file")
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environments = []
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resource_registry_path = os.path.join(
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self.tht_render, 'overcloud-resource-registry-puppet.yaml')
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environments.insert(0, resource_registry_path)
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# this will allow the user to overwrite passwords with custom envs
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pw_file = self._update_passwords_env(parsed_args.output_dir)
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environments.insert(1, pw_file)
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undercloud_env_path = os.path.join(
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self.tht_render, 'environments', 'undercloud.yaml')
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environments.append(undercloud_env_path)
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# use deployed-server because we run os-collect-config locally
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deployed_server_env = os.path.join(
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self.tht_render, 'environments',
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'config-download-environment.yaml')
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environments.append(deployed_server_env)
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# use deployed-server because we run os-collect-config locally
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deployed_server_env = os.path.join(
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self.tht_render, 'environments',
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'deployed-server-noop-ctlplane.yaml')
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environments.append(deployed_server_env)
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if parsed_args.environment_files:
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environments.extend(parsed_args.environment_files)
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with tempfile.NamedTemporaryFile(delete=False) as tmp_env_file:
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self.tmp_env_file_name = tmp_env_file.name
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ip_nw = netaddr.IPNetwork(parsed_args.local_ip)
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ip = str(ip_nw.ip)
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cidr_prefixlen = ip_nw.prefixlen
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if parsed_args.control_virtual_ip:
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c_ip = parsed_args.control_virtual_ip
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else:
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c_ip = ip
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if parsed_args.public_virtual_ip:
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p_ip = parsed_args.public_virtual_ip
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else:
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p_ip = ip
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tmp_env = self._generate_hosts_parameters(parsed_args, p_ip)
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tmp_env.update(self._generate_portmap_parameters(
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ip, cidr_prefixlen, c_ip, p_ip))
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with open(self.tmp_env_file_name, 'w') as env_file:
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yaml.safe_dump({'parameter_defaults': tmp_env}, env_file,
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default_flow_style=False)
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environments.append(self.tmp_env_file_name)
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return environments
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def _deploy_tripleo_heat_templates(self, orchestration_client,
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parsed_args):
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"""Deploy the fixed templates in TripleO Heat Templates"""
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# sets self.tht_render to the temporary work dir after it's done
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environments = self._setup_heat_environments(parsed_args)
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self.log.debug("Processing environment files %s" % environments)
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env_files, env = utils.process_multiple_environments(
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environments, self.tht_render, parsed_args.templates,
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cleanup=parsed_args.cleanup)
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self.log.debug("Getting template contents")
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template_path = os.path.join(self.tht_render, 'overcloud.yaml')
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template_files, template = \
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template_utils.get_template_contents(template_path)
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files = dict(list(template_files.items()) + list(env_files.items()))
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stack_name = parsed_args.stack
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self.log.debug("Deploying stack: %s", stack_name)
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self.log.debug("Deploying template: %s", template)
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self.log.debug("Deploying environment: %s", env)
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self.log.debug("Deploying files: %s", files)
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stack_args = {
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'stack_name': stack_name,
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'template': template,
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'environment': env,
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'files': files,
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}
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if parsed_args.timeout:
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stack_args['timeout_mins'] = parsed_args.timeout
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self.log.info("Performing Heat stack create")
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stack = orchestration_client.stacks.create(**stack_args)
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stack_id = stack['stack']['id']
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return "%s/%s" % (stack_name, stack_id)
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def _download_ansible_playbooks(self, client, stack_name, output_dir):
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stack_config = config.Config(client)
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print('** Downloading undercloud ansible.. **')
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# python output buffering is making this seem to take forever..
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sys.stdout.flush()
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stack_config.download_config('undercloud', output_dir)
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# Sadly the above writes the ansible config to a new directory each
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# time. This finds the newest new entry.
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# The use of tmpdirs is going away, but we need to remain
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# backwards compatible for now to pass the gate. lp:17252118
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def find_ansible_dir():
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tmpdirs = glob.glob('%s/tripleo-*-config' % output_dir)
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if not tmpdirs:
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return output_dir
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else:
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return max(tmpdirs, key=os.path.getctime)
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ansible_dir = find_ansible_dir()
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inventory = TripleoInventory(
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hclient=client,
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plan_name=stack_name,
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ansible_ssh_user='root')
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inv_path = os.path.join(ansible_dir, 'inventory.yaml')
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extra_vars = {'Undercloud': {'ansible_connection': 'local'}}
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inventory.write_static_inventory(inv_path, extra_vars)
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print('** Downloaded undercloud ansible to %s **' % ansible_dir)
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sys.stdout.flush()
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return ansible_dir
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# Never returns, calls exec()
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def _launch_ansible(self, ansible_dir):
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os.chdir(ansible_dir)
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playbook_inventory = os.path.join(ansible_dir, 'inventory.yaml')
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cmd = ['ansible-playbook', '-i', playbook_inventory,
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'deploy_steps_playbook.yaml', '-e', 'role_name=Undercloud',
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'-e', 'deploy_server_id=undercloud', '-e',
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'bootstrap_server_id=undercloud']
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print('Running Ansible: %s' % (' '.join(cmd)))
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# execvp() doesn't return.
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os.execvp(cmd[0], cmd)
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def get_parser(self, prog_name):
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parser = argparse.ArgumentParser(
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description=self.get_description(),
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prog=prog_name,
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add_help=False
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)
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parser.add_argument(
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'--templates', nargs='?', const=constants.TRIPLEO_HEAT_TEMPLATES,
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help=_("The directory containing the Heat templates to deploy"),
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)
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parser.add_argument('--stack',
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help=_("Stack name to create"),
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default='undercloud')
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parser.add_argument('--output-dir',
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dest='output_dir',
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help=_("Directory to output state, processed heat "
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"templates, ansible deployment files."),
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default=constants.UNDERCLOUD_OUTPUT_DIR)
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parser.add_argument('--output-only',
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dest='output_only',
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action='store_true',
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default=False,
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help=_("Do not execute the Ansible playbooks. By"
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" default the playbooks are saved to the"
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" output-dir and then executed.")),
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parser.add_argument('-t', '--timeout', metavar='<TIMEOUT>',
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type=int, default=30,
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help=_('Deployment timeout in minutes.'))
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parser.add_argument(
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'-e', '--environment-file', metavar='<HEAT ENVIRONMENT FILE>',
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action='append', dest='environment_files',
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help=_('Environment files to be passed to the heat stack-create '
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'or heat stack-update command. (Can be specified more than '
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'once.)')
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)
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parser.add_argument(
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'--roles-file', '-r', dest='roles_file',
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help=_('Roles file, overrides the default %s in the --templates '
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'directory') % constants.UNDERCLOUD_ROLES_FILE,
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default=constants.UNDERCLOUD_ROLES_FILE
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)
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parser.add_argument(
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'--heat-api-port', metavar='<HEAT_API_PORT>',
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dest='heat_api_port',
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default='8006',
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help=_('Heat API port to use for the installers private'
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' Heat API instance. Optional. Default: 8006.)')
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)
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parser.add_argument(
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'--heat-user', metavar='<HEAT_USER>',
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dest='heat_user',
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default='heat',
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help=_('User to execute the non-priveleged heat-all process. '
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'Defaults to heat.')
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)
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parser.add_argument(
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'--heat-container-image', metavar='<HEAT_CONTAINER_IMAGE>',
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dest='heat_container_image',
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default='tripleomaster/centos-binary-heat-all',
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help=_('The container image to use when launching the heat-all '
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'process. Defaults to: '
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'tripleomaster/centos-binary-heat-all')
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)
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parser.add_argument(
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'--heat-native',
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action='store_true',
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default=True,
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help=_('Execute the heat-all process natively on this host. '
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'This option requires that the heat-all binaries '
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'be installed locally on this machine. '
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'This option is enabled by default which means heat-all is '
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'executed on the host OS directly.')
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)
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parser.add_argument(
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'--local-ip', metavar='<LOCAL_IP>',
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dest='local_ip',
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help=_('Local IP/CIDR for undercloud traffic. Required.')
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)
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parser.add_argument(
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'--control-virtual-ip', metavar='<CONTROL_VIRTUAL_IP>',
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dest='control_virtual_ip',
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help=_('Control plane VIP. This allows the undercloud installer '
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'to configure a custom VIP on the control plane.')
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)
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parser.add_argument(
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'--public-virtual-ip', metavar='<PUBLIC_VIRTUAL_IP>',
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dest='public_virtual_ip',
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help=_('Public nw VIP. This allows the undercloud installer '
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'to configure a custom VIP on the public (external) NW.')
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)
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parser.add_argument(
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'--local-domain', metavar='<LOCAL_DOMAIN>',
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dest='local_domain',
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|
default='undercloud',
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|
help=_('Local domain for undercloud and its API endpoints')
|
|
)
|
|
parser.add_argument(
|
|
'--cleanup',
|
|
action='store_true', default=False,
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help=_('Cleanup temporary files')
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)
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return parser
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def take_action(self, parsed_args):
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self.log.debug("take_action(%s)" % parsed_args)
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print("\nUndercloud deploy is an experimental developer focused "
|
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"feature that does not yet replace "
|
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"'openstack undercloud install'.")
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|
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if not parsed_args.local_ip:
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print('Please set --local-ip to the correct ipaddress/cidr '
|
|
'for this machine.')
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return
|
|
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if not os.environ.get('HEAT_API_PORT'):
|
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os.environ['HEAT_API_PORT'] = parsed_args.heat_api_port
|
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|
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# The main thread runs as root and we drop privs for forked
|
|
# processes below. Only the heat deploy/os-collect-config forked
|
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# process runs as root.
|
|
if os.geteuid() != 0:
|
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raise exceptions.DeploymentError("Please run as root.")
|
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|
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# configure puppet
|
|
self._configure_puppet()
|
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try:
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# Launch heat.
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orchestration_client = self._launch_heat(parsed_args)
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# Wait for heat to be ready.
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self._wait_local_port_ready(parsed_args.heat_api_port)
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# Deploy TripleO Heat templates.
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|
stack_id = \
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self._deploy_tripleo_heat_templates(orchestration_client,
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parsed_args)
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# Wait for complete..
|
|
status, msg = event_utils.poll_for_events(
|
|
orchestration_client, stack_id, nested_depth=6)
|
|
if status != "CREATE_COMPLETE":
|
|
raise Exception("Stack create failed; %s" % msg)
|
|
|
|
# download the ansible playbooks and execute them.
|
|
ansible_dir = \
|
|
self._download_ansible_playbooks(orchestration_client,
|
|
parsed_args.stack,
|
|
parsed_args.output_dir)
|
|
# Kill heat, we're done with it now.
|
|
self._kill_heat(parsed_args)
|
|
if not parsed_args.output_only:
|
|
# Never returns.. We exec() it directly.
|
|
self._launch_ansible(ansible_dir)
|
|
except Exception as e:
|
|
print("Exception: %s" % e)
|
|
print(traceback.format_exception(*sys.exc_info()))
|
|
raise
|
|
finally:
|
|
self._kill_heat(parsed_args)
|
|
if not parsed_args.output_only:
|
|
# We only get here on error.
|
|
print('ERROR: Heat log files: %s' %
|
|
(self.heat_launch.install_tmp))
|
|
return 1
|
|
else:
|
|
return 0
|