115 lines
3.9 KiB
Python
115 lines
3.9 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import netaddr
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from mistral_lib import actions
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from oslo_config import cfg
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from oslo_log import log as logging
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from tacker.agent.linux import utils as linux_utils
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from tacker.common import rpc
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from tacker.common import topics
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from tacker.conductor.conductorrpc import vim_monitor_rpc
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from tacker import context as t_context
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LOG = logging.getLogger(__name__)
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class PingVimAction(actions.Action):
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def __init__(self, count, targetip, vim_id,
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interval, timeout):
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self.killed = False
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self.count = count
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self.timeout = timeout
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self.interval = interval
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self.targetip = targetip
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self.vim_id = vim_id
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self.current_status = "PENDING"
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def start_rpc_listeners(self):
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"""Start the RPC loop to let the server communicate with actions."""
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self.endpoints = [self]
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self.conn = rpc.create_connection()
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self.conn.create_consumer(topics.TOPIC_ACTION_KILL,
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self.endpoints, fanout=False,
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host=self.vim_id)
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return self.conn.consume_in_threads()
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def killAction(self, context, **kwargs):
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self.killed = True
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def _ping(self):
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cmd_ping = 'ping'
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if netaddr.valid_ipv6(self.targetip):
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cmd_ping = 'ping6'
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ping_cmd = [cmd_ping, '-c', self.count,
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'-W', self.timeout,
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'-i', self.interval,
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self.targetip]
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try:
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# NOTE(gongysh) since it is called in a loop, the debug log
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# should be disabled to avoid eating up mistral executor.
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linux_utils.execute(ping_cmd, check_exit_code=True,
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debuglog=False)
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return 'REACHABLE'
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except RuntimeError:
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LOG.warning(("Cannot ping ip address: %s"), self.targetip)
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return 'UNREACHABLE'
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def _update(self, status):
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LOG.info("VIM %s changed to status %s", self.vim_id, status)
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target = vim_monitor_rpc.VIMUpdateRPC.target
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rpc_client = rpc.get_client(target)
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cctxt = rpc_client.prepare()
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return cctxt.call(t_context.get_admin_context_without_session(),
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'update_vim',
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vim_id=self.vim_id,
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status=status)
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def run(self, action_ctx):
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servers = []
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try:
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rpc.init_action_rpc(cfg.CONF)
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servers = self.start_rpc_listeners()
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except Exception:
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LOG.exception('failed to start rpc in vim action')
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return 'FAILED'
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try:
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while True:
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if self.killed:
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break
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status = self._ping()
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if self.current_status != status:
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self.current_status = self._update(status)
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# TODO(gongysh) If we need to sleep a little time here?
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except Exception:
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LOG.exception('failed to run mistral action for vim %s',
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self.vim_id)
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return 'FAILED'
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# to stop rpc connection
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for server in servers:
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try:
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server.stop()
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except Exception:
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LOG.exception(
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'failed to stop rpc connection for vim %s',
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self.vim_id)
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return 'KILLED'
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def test(self):
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return 'REACHABLE'
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