def addHostStatus(eventName, host_id, session_id, **params):
"""New host needs to be added to the monitor"""
global _statusInfo, _runStatus
#Only add if thread is running
if _runStatus:
host = ccs_host(session_id, host_id)
name = host["host_name"]
#Only add if host is active and not already in the list
if host._properties["host_active"] and name not in _statusInfo:
interval = config_get("status", "interval", DEFAULT_CHECK_INTERVAL)
_statusInfo[name] = ccs_host_status(ADMIN_SESSION_ID, \
host_id, interval)
def __init__(self, session_id, host_id, interval=-1):
"""Initialises a new class for a specified host.
The specified session must be valid and have appropriate access to
the database.
"""
self.lock = threading.RLock()
session = getSession(session_id)
if session is None:
raise ccs_host_error("Invalid session id")
self._session_id = session_id
# See if the specified host id makes sense
self.host = ccs_host(session_id, host_id)
self._hostname = self.host["host_name"]
self._ip = self.host["ip_address"]
# Initialise the status information
self.reachable = False
self.operatingRevision = -1
self.operatingRevisionStatus = STATUS_UNKNOWN
self.operatingRevisionText = "Unknown"
self.operatingRevisionHint = "Status not yet fetched"
self.currentLoad = (-1,-1,-1)
self.uptime = 0
self.infoUpdatedAt = 0
self.lastCheckedAt = time.time()
self.interval = interval
self.attempt = 0
# Retrieve locally available information
self.activeRevision = getActiveRevision(self._hostname)
self.generatedRevision = getGeneratedRevision(self._hostname)
# Will this object be updated?
if interval != -1:
ccs_host_status.queue(time.time(), self)
log_info("Initialised host status monitor for %s" % self._hostname)
def setupQuaggaService(eventName, session_id, host_id, **kwargs):
"""Watches events to detect when quagga has been added to a host.
When a successful addition is detected the quagga configuration for the
host is initialised.
"""
from crcnetd.modules.ccs_host import ccs_host
# Bail out if the quagga service isn't configured yet
if quagga_service.service_id == -1:
return
# Bail out if this isn't the quagga service being added
if "service_id" not in kwargs.keys():
return
if kwargs["service_id"] != quagga_service.service_id:
return
session = getSessionE(session_id)
# Quagga service is being added, get a host instance
host = ccs_host(session_id, host_id)
# Enable OSPF on interfaces that have an area defined for their
# link class.
ifaces = host.getInterfaces()
for idx,iface in ifaces.items():
if not iface["interface_active"]:
continue
area_no = quagga_service.getLinkArea(session_id, iface["link_id"])
if area_no == -1:
continue
sql = "INSERT INTO quagga_ospf_interface (host_id, " \
"interface_id, area_no, md5_auth) VALUES (%s, " \
"%s, %s, DEFAULT)"
session.execute(sql, (host_id, iface["interface_id"], area_no))
