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"
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
+
+ """
+ def decorator(fn):
+ def wrapper(*args, **kwargs):
+ _, myself = ssconf.GetMasterAndMyself()
+ nodes = ([myself], [myself]) # these hooks run locally
+
+ 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)
"""
- # GetMasterInfo will raise an exception if not able to return data
- master_netdev, master_ip, _, family, master_netmask = GetMasterInfo()
+ # pylint: disable=W0613
+ ver = netutils.IPAddress.GetVersionFromAddressFamily(master_params.ip_family)
+ env = {
+ "MASTER_NETDEV": master_params.netdev,
+ "MASTER_IP": master_params.ip,
+ "MASTER_NETMASK": master_params.netmask,
+ "CLUSTER_IP_VERSION": str(ver),
+ }
+
+ return env
+
+@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.
+
+ @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
+
+ """
+ # pylint: disable=W0613
err_msg = None
- if netutils.TcpPing(master_ip, constants.DEFAULT_NODED_PORT):
- if netutils.IPAddress.Own(master_ip):
+ if netutils.TcpPing(master_params.ip, constants.DEFAULT_NODED_PORT):
+ if netutils.IPAddress.Own(master_params.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)
else:
- ipcls = netutils.IPAddress.GetClassFromIpFamily(family)
+ ipcls = netutils.IPAddress.GetClassFromIpFamily(master_params.ip_family)
result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "add",
- "%s/%s" % (master_ip, master_netmask),
- "dev", master_netdev, "label",
- "%s:0" % master_netdev])
+ "%s/%s" % (master_params.ip, master_params.netmask),
+ "dev", master_params.netdev, "label",
+ "%s:0" % master_params.netdev])
if result.failed:
err_msg = "Can't activate master IP: %s" % result.output
logging.error(err_msg)
else:
# 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])
+ utils.RunCmd(["arping", "-q", "-U", "-c 3", "-I", master_params.netdev,
+ "-s", master_params.ip, master_params.ip])
elif ipcls == netutils.IP6Address:
try:
- utils.RunCmd(["ndisc6", "-q", "-r 3", master_ip, master_netdev])
+ utils.RunCmd(["ndisc6", "-q", "-r 3", master_params.ip,
+ master_params.netdev])
except errors.OpExecError:
# TODO: Better error reporting
logging.warning("Can't execute ndisc6, please install if missing")
_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.
+ @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
+
"""
+ # pylint: disable=W0613
# 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, _, _, master_netmask = GetMasterInfo()
-
result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "del",
- "%s/%s" % (master_ip, master_netmask),
- "dev", master_netdev])
+ "%s/%s" % (master_params.ip, master_params.netmask),
+ "dev", master_params.netdev])
if result.failed:
logging.error("Can't remove the master IP, error: %s", result.output)
# but otherwise ignore the failure
result.cmd, result.exit_code, result.output)
-def ChangeMasterNetmask(netmask):
+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
+
"""
- master_netdev, master_ip, _, _, old_netmask = GetMasterInfo()
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 change the master IP netmask")
+ _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 change the master IP netmask")
+ _Fail("Could not bring down the master IP address with the old netmask")
def EtcHostsModify(mode, host, ip):
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]:
# 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