from ganeti import serializer
from ganeti import netutils
from ganeti import runtime
+from ganeti import mcpu
+from ganeti import compat
_BOOT_ID_PATH = "/proc/sys/kernel/random/boot_id"
#: Valid LVS output line regex
_LVSLINE_REGEX = re.compile("^ *([^|]+)\|([^|]+)\|([0-9.]+)\|([^|]{6})\|?$")
+# Actions for the master setup script
+_MASTER_START = "start"
+_MASTER_STOP = "stop"
+
class RPCFail(Exception):
"""Class denoting RPC failure.
for hv_name in constants.HYPER_TYPES:
hv_class = hypervisor.GetHypervisorClass(hv_name)
- allowed_files.update(hv_class.GetAncillaryFiles())
+ allowed_files.update(hv_class.GetAncillaryFiles()[0])
return frozenset(allowed_files)
for consumption here or from the node daemon.
@rtype: tuple
- @return: master_netdev, master_ip, master_name, primary_ip_family
+ @return: master_netdev, master_ip, master_name, primary_ip_family,
+ master_netmask
@raise RPCFail: in case of errors
"""
cfg = _GetConfig()
master_netdev = cfg.GetMasterNetdev()
master_ip = cfg.GetMasterIP()
+ master_netmask = cfg.GetMasterNetmask()
master_node = cfg.GetMasterNode()
primary_ip_family = cfg.GetPrimaryIPFamily()
except errors.ConfigurationError, err:
_Fail("Cluster configuration incomplete: %s", err, exc=True)
- return (master_netdev, master_ip, master_node, primary_ip_family)
+ return (master_netdev, master_ip, master_node, primary_ip_family,
+ master_netmask)
-def ActivateMasterIp():
- """Activate the IP address of the master daemon.
+def RunLocalHooks(hook_opcode, hooks_path, env_builder_fn):
+ """Decorator that runs hooks before and after the decorated function.
+
+ @type hook_opcode: string
+ @param hook_opcode: opcode of the hook
+ @type hooks_path: string
+ @param hooks_path: path of the hooks
+ @type env_builder_fn: function
+ @param env_builder_fn: function that returns a dictionary containing the
+ environment variables for the hooks. Will get all the parameters of the
+ decorated function.
+ @raise RPCFail: in case of pre-hook failure
"""
- # GetMasterInfo will raise an exception if not able to return data
- master_netdev, master_ip, _, family = GetMasterInfo()
+ def decorator(fn):
+ def wrapper(*args, **kwargs):
+ _, myself = ssconf.GetMasterAndMyself()
+ nodes = ([myself], [myself]) # these hooks run locally
- err_msg = None
- if netutils.TcpPing(master_ip, constants.DEFAULT_NODED_PORT):
- if netutils.IPAddress.Own(master_ip):
- # we already have the ip:
- logging.debug("Master IP already configured, doing nothing")
- else:
- err_msg = "Someone else has the master ip, not activating"
- logging.error(err_msg)
+ env_fn = compat.partial(env_builder_fn, *args, **kwargs)
+
+ cfg = _GetConfig()
+ hr = HooksRunner()
+ hm = mcpu.HooksMaster(hook_opcode, hooks_path, nodes, hr.RunLocalHooks,
+ None, env_fn, logging.warning, cfg.GetClusterName(),
+ cfg.GetMasterNode())
+
+ hm.RunPhase(constants.HOOKS_PHASE_PRE)
+ result = fn(*args, **kwargs)
+ hm.RunPhase(constants.HOOKS_PHASE_POST)
+
+ return result
+ return wrapper
+ return decorator
+
+
+def _BuildMasterIpEnv(master_params, use_external_mip_script=None):
+ """Builds environment variables for master IP hooks.
+
+ @type master_params: L{objects.MasterNetworkParameters}
+ @param master_params: network parameters of the master
+ @type use_external_mip_script: boolean
+ @param use_external_mip_script: whether to use an external master IP
+ address setup script (unused, but necessary per the implementation of the
+ _RunLocalHooks decorator)
+
+ """
+ # pylint: disable=W0613
+ ver = netutils.IPAddress.GetVersionFromAddressFamily(master_params.ip_family)
+ env = {
+ "MASTER_NETDEV": master_params.netdev,
+ "MASTER_IP": master_params.ip,
+ "MASTER_NETMASK": str(master_params.netmask),
+ "CLUSTER_IP_VERSION": str(ver),
+ }
+
+ return env
+
+
+def _RunMasterSetupScript(master_params, action, use_external_mip_script):
+ """Execute the master IP address setup script.
+
+ @type master_params: L{objects.MasterNetworkParameters}
+ @param master_params: network parameters of the master
+ @type action: string
+ @param action: action to pass to the script. Must be one of
+ L{backend._MASTER_START} or L{backend._MASTER_STOP}
+ @type use_external_mip_script: boolean
+ @param use_external_mip_script: whether to use an external master IP
+ address setup script
+ @raise backend.RPCFail: if there are errors during the execution of the
+ script
+
+ """
+ env = _BuildMasterIpEnv(master_params)
+
+ if use_external_mip_script:
+ setup_script = constants.EXTERNAL_MASTER_SETUP_SCRIPT
else:
- ipcls = netutils.IP4Address
- if family == netutils.IP6Address.family:
- ipcls = netutils.IP6Address
-
- result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "add",
- "%s/%d" % (master_ip, ipcls.iplen),
- "dev", master_netdev, "label",
- "%s:0" % master_netdev])
- if result.failed:
- err_msg = "Can't activate master IP: %s" % result.output
- logging.error(err_msg)
-
- # we ignore the exit code of the following cmds
- if ipcls == netutils.IP4Address:
- utils.RunCmd(["arping", "-q", "-U", "-c 3", "-I", master_netdev, "-s",
- master_ip, master_ip])
- elif ipcls == netutils.IP6Address:
- try:
- utils.RunCmd(["ndisc6", "-q", "-r 3", master_ip, master_netdev])
- except errors.OpExecError:
- # TODO: Better error reporting
- logging.warning("Can't execute ndisc6, please install if missing")
+ setup_script = constants.DEFAULT_MASTER_SETUP_SCRIPT
+
+ result = utils.RunCmd([setup_script, action], env=env, reset_env=True)
+
+ if result.failed:
+ _Fail("Failed to %s the master IP. Script return value: %s" %
+ (action, result.exit_code), log=True)
+
+
+@RunLocalHooks(constants.FAKE_OP_MASTER_TURNUP, "master-ip-turnup",
+ _BuildMasterIpEnv)
+def ActivateMasterIp(master_params, use_external_mip_script):
+ """Activate the IP address of the master daemon.
- if err_msg:
- _Fail(err_msg)
+ @type master_params: L{objects.MasterNetworkParameters}
+ @param master_params: network parameters of the master
+ @type use_external_mip_script: boolean
+ @param use_external_mip_script: whether to use an external master IP
+ address setup script
+ @raise RPCFail: in case of errors during the IP startup
+
+ """
+ _RunMasterSetupScript(master_params, _MASTER_START,
+ use_external_mip_script)
def StartMasterDaemons(no_voting):
_Fail(msg)
-def DeactivateMasterIp():
+@RunLocalHooks(constants.FAKE_OP_MASTER_TURNDOWN, "master-ip-turndown",
+ _BuildMasterIpEnv)
+def DeactivateMasterIp(master_params, use_external_mip_script):
"""Deactivate the master IP on this node.
- """
- # TODO: log and report back to the caller the error failures; we
- # need to decide in which case we fail the RPC for this
-
- # GetMasterInfo will raise an exception if not able to return data
- master_netdev, master_ip, _, family = GetMasterInfo()
+ @type master_params: L{objects.MasterNetworkParameters}
+ @param master_params: network parameters of the master
+ @type use_external_mip_script: boolean
+ @param use_external_mip_script: whether to use an external master IP
+ address setup script
+ @raise RPCFail: in case of errors during the IP turndown
- ipcls = netutils.IP4Address
- if family == netutils.IP6Address.family:
- ipcls = netutils.IP6Address
-
- result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "del",
- "%s/%d" % (master_ip, ipcls.iplen),
- "dev", master_netdev])
- if result.failed:
- logging.error("Can't remove the master IP, error: %s", result.output)
- # but otherwise ignore the failure
+ """
+ _RunMasterSetupScript(master_params, _MASTER_STOP,
+ use_external_mip_script)
def StopMasterDaemons():
result.cmd, result.exit_code, result.output)
+def ChangeMasterNetmask(old_netmask, netmask, master_ip, master_netdev):
+ """Change the netmask of the master IP.
+
+ @param old_netmask: the old value of the netmask
+ @param netmask: the new value of the netmask
+ @param master_ip: the master IP
+ @param master_netdev: the master network device
+
+ """
+ if old_netmask == netmask:
+ return
+
+ if not netutils.IPAddress.Own(master_ip):
+ _Fail("The master IP address is not up, not attempting to change its"
+ " netmask")
+
+ result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "add",
+ "%s/%s" % (master_ip, netmask),
+ "dev", master_netdev, "label",
+ "%s:0" % master_netdev])
+ if result.failed:
+ _Fail("Could not set the new netmask on the master IP address")
+
+ result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "del",
+ "%s/%s" % (master_ip, old_netmask),
+ "dev", master_netdev, "label",
+ "%s:0" % master_netdev])
+ if result.failed:
+ _Fail("Could not bring down the master IP address with the old netmask")
+
+
def EtcHostsModify(mode, host, ip):
"""Modify a host entry in /etc/hosts.
what[constants.NV_FILELIST])
if constants.NV_NODELIST in what:
- result[constants.NV_NODELIST] = tmp = {}
- random.shuffle(what[constants.NV_NODELIST])
- for node in what[constants.NV_NODELIST]:
+ (nodes, bynode) = what[constants.NV_NODELIST]
+
+ # Add nodes from other groups (different for each node)
+ try:
+ nodes.extend(bynode[my_name])
+ except KeyError:
+ pass
+
+ # Use a random order
+ random.shuffle(nodes)
+
+ # Try to contact all nodes
+ val = {}
+ for node in nodes:
success, message = _GetSshRunner(cluster_name).VerifyNodeHostname(node)
if not success:
- tmp[node] = message
+ val[node] = message
+
+ result[constants.NV_NODELIST] = val
if constants.NV_NODENETTEST in what:
result[constants.NV_NODENETTEST] = tmp = {}
result[constants.NV_MASTERIP] = netutils.TcpPing(master_ip, port,
source=source)
+ if constants.NV_USERSCRIPTS in what:
+ result[constants.NV_USERSCRIPTS] = \
+ [script for script in what[constants.NV_USERSCRIPTS]
+ if not (os.path.exists(script) and os.access(script, os.X_OK))]
+
if constants.NV_OOB_PATHS in what:
result[constants.NV_OOB_PATHS] = tmp = []
for path in what[constants.NV_OOB_PATHS]:
_EnsureJobQueueFile(old)
_EnsureJobQueueFile(new)
- utils.RenameFile(old, new, mkdir=True)
+ getents = runtime.GetEnts()
+
+ utils.RenameFile(old, new, mkdir=True, mkdir_mode=0700,
+ dir_uid=getents.masterd_uid, dir_gid=getents.masterd_gid)
def BlockdevClose(instance_name, disks):
# constant
self._BASE_DIR = hooks_base_dir # pylint: disable=C0103
+ def RunLocalHooks(self, node_list, hpath, phase, env):
+ """Check that the hooks will be run only locally and then run them.
+
+ """
+ assert len(node_list) == 1
+ node = node_list[0]
+ _, myself = ssconf.GetMasterAndMyself()
+ assert node == myself
+
+ results = self.RunHooks(hpath, phase, env)
+
+ # Return values in the form expected by HooksMaster
+ return {node: (None, False, results)}
+
def RunHooks(self, hpath, phase, env):
"""Run the scripts in the hooks directory.
projects / ganeti-local / blobdiff