- if self._vpp_startup_conf_backup is not None:
- (ret, _, _) = \
- ssh.exec_command('sudo cp {0} {1}'.
- format(self._vpp_startup_conf,
- self._vpp_startup_conf_backup))
- if ret != 0:
- raise RuntimeError('Backup of config file failed on node {}'.
- format(self._hostname))
-
- (ret, _, _) = \
- ssh.exec_command('echo "{config}" | sudo tee {filename}'.
- format(config=self._vpp_config,
- filename=filename))
-
- if ret != 0:
- raise RuntimeError('Writing config file failed to node {}'.
- format(self._hostname))
-
- if restart_vpp:
- # Instead of restarting, we'll do separate start and stop
- # actions. This way we don't care whether VPP was running
- # to begin with.
- ssh.exec_command('sudo service {} stop'
- .format(self._vpp_service_name))
- (ret, _, _) = \
- ssh.exec_command('sudo service {} start'
- .format(self._vpp_service_name))
- if ret != 0:
- raise RuntimeError('Restarting VPP failed on node {}'.
- format(self._hostname))
-
- # Sleep <waittime> seconds, up to <retry> times,
- # and verify if VPP is running.
- for _ in range(retries):
- time.sleep(1)
- (ret, stdout, _) = \
- ssh.exec_command('echo show hardware-interfaces | '
- 'nc 0 5002 || echo "VPP not yet running"')
- if ret == 0 and 'VPP not yet running' not in stdout:
- break
- else:
- raise RuntimeError('VPP failed to restart on node {}'.
- format(self._hostname))
-
- def restore_config(self):
- """Restore VPP startup.conf from backup.
-
- :raises RuntimeError: When restoration of startup.conf file failed.
- """
-
- ssh = SSH()
- ssh.connect(self._node)
-
- (ret, _, _) = ssh.exec_command('sudo cp {0} {1}'.
- format(self._vpp_startup_conf_backup,
- self._vpp_startup_conf))
- if ret != 0:
- raise RuntimeError('Restoration of config file failed on node {}'.
- format(self._hostname))
+ cmd = f"echo \"{self._vpp_config}\" | sudo tee {filename}"
+ exec_cmd_no_error(
+ self._node, cmd, message=u"Writing config file failed!"
+ )
+
+ def apply_config(self, filename=None, verify_vpp=True):
+ """Generate and write VPP startup configuration to file and restart VPP.
+
+ Use data from calls to this class to form a startup.conf file and
+ replace /etc/vpp/startup.conf with it on topology node.
+
+ :param filename: Startup configuration file name.
+ :param verify_vpp: Verify VPP is running after restart.
+ :type filename: str
+ :type verify_vpp: bool
+ """
+ self.write_config(filename=filename)
+
+ VPPUtil.restart_vpp_service(self._node, self._node_key)
+ if verify_vpp:
+ VPPUtil.verify_vpp(self._node)