mirror of
https://github.com/apache/cloudstack.git
synced 2025-10-26 08:42:29 +01:00
ae53d5ede1
Fix the router state. do not show UNKNOW, but MASTER or BACKUP depending on the type of router Implement the virtual_router_id to be passed as a boot parameter to the router - it is needed for the keepalived configuration
260 lines
11 KiB
Python
260 lines
11 KiB
Python
# -- coding: utf-8 --
|
|
# Licensed to the Apache Software Foundation (ASF) under one
|
|
# or more contributor license agreements. See the NOTICE file
|
|
# distributed with this work for additional information
|
|
# regarding copyright ownership. The ASF licenses this file
|
|
# to you under the Apache License, Version 2.0 (the
|
|
# "License"); you may not use this file except in compliance
|
|
# with the License. You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing,
|
|
# software distributed under the License is distributed on an
|
|
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
# KIND, either express or implied. See the License for the
|
|
# specific language governing permissions and limitations
|
|
# under the License.
|
|
# -------------------------------------------------------------------- #
|
|
# Notes
|
|
# -------------------------------------------------------------------- #
|
|
# Vrouter
|
|
#
|
|
# eth0 router gateway IP for isolated network
|
|
# eth1 Control IP for hypervisor
|
|
# eth2 public ip(s)
|
|
#
|
|
# VPC Router
|
|
#
|
|
# eth0 control interface
|
|
# eth1 public ip
|
|
# eth2+ Guest networks
|
|
# -------------------------------------------------------------------- #
|
|
import sys
|
|
import os
|
|
from pprint import pprint
|
|
from CsDatabag import CsDataBag, CsCmdLine
|
|
import logging
|
|
import CsHelper
|
|
from CsFile import CsFile
|
|
from CsConfig import CsConfig
|
|
|
|
|
|
class CsRedundant(object):
|
|
|
|
CS_RAMDISK_DIR = "/ramdisk"
|
|
CS_PRIO_UP = 1
|
|
CS_PRIO_DOWN = -1
|
|
CS_ROUTER_DIR = "%s/rrouter" % CS_RAMDISK_DIR
|
|
CS_TEMPLATES = [
|
|
"heartbeat.sh.templ", "check_heartbeat.sh.templ",
|
|
"arping_gateways.sh.templ"
|
|
]
|
|
CS_TEMPLATES_DIR = "/opt/cloud/templates"
|
|
CONNTRACKD_BIN = "/usr/sbin/conntrackd"
|
|
CONNTRACKD_KEEPALIVED_CONFLOCK = "/var/lock/conntrack.lock"
|
|
CONNTRACKD_CONF = "/etc/conntrackd/conntrackd.conf"
|
|
RROUTER_LOG = "/var/log/cloud.log"
|
|
KEEPALIVED_CONF = "/etc/keepalived/keepalived.conf"
|
|
|
|
def __init__(self, config):
|
|
self.cl = config.cmdline()
|
|
self.address = config.address()
|
|
|
|
def set(self):
|
|
logging.debug("Router redundancy status is %s", self.cl.is_redundant())
|
|
guest = self.address.get_guest_if()
|
|
if self.cl.is_redundant() and guest:
|
|
self._redundant_on()
|
|
else:
|
|
self._redundant_off()
|
|
|
|
def _redundant_off(self):
|
|
CsHelper.service("conntrackd", "stop")
|
|
CsHelper.service("keepalived", "stop")
|
|
CsHelper.umount_tmpfs(self.CS_RAMDISK_DIR)
|
|
CsHelper.rmdir(self.CS_RAMDISK_DIR)
|
|
CsHelper.rm(self.CONNTRACKD_CONF)
|
|
CsHelper.rm(self.KEEPALIVED_CONF)
|
|
|
|
def _redundant_on(self):
|
|
CsHelper.mkdir(self.CS_RAMDISK_DIR, 0755, False)
|
|
CsHelper.mount_tmpfs(self.CS_RAMDISK_DIR)
|
|
CsHelper.mkdir(self.CS_ROUTER_DIR, 0755, False)
|
|
for s in self.CS_TEMPLATES:
|
|
d = s
|
|
if s.endswith(".templ"):
|
|
d = s.replace(".templ", "")
|
|
CsHelper.copy_if_needed("%s/%s" % (self.CS_TEMPLATES_DIR, s), "%s/%s" % (self.CS_ROUTER_DIR, d))
|
|
CsHelper.copy_if_needed("%s/%s" % (self.CS_TEMPLATES_DIR, "keepalived.conf.templ"), self.KEEPALIVED_CONF)
|
|
CsHelper.copy_if_needed("%s/%s" % (self.CS_TEMPLATES_DIR, "conntrackd.conf.templ"), self.CONNTRACKD_CONF)
|
|
CsHelper.copy_if_needed("%s/%s" % (self.CS_TEMPLATES_DIR, "checkrouter.sh.templ"), "/opt/cloud/bin/checkrouter.sh")
|
|
|
|
CsHelper.execute('sed -i "s/--exec\ \$DAEMON;/--exec\ \$DAEMON\ --\ --vrrp;/g" /etc/init.d/keepalived')
|
|
# checkrouter.sh configuration
|
|
file = CsFile("/opt/cloud/bin/checkrouter.sh")
|
|
file.greplace("[RROUTER_LOG]", self.RROUTER_LOG)
|
|
file.commit()
|
|
|
|
# keepalived configuration
|
|
file = CsFile(self.KEEPALIVED_CONF)
|
|
file.search(" router_id ", " router_id %s" % self.cl.get_name())
|
|
file.search(" priority ", " priority %s" % self.cl.get_priority())
|
|
file.search(" weight ", " weight %s" % 2)
|
|
file.search(" state ", " state %s" % self.cl.get_state())
|
|
file.search(" virtual_router_id ", " virtual_router_id %s" % self.cl.get_router_id())
|
|
file.greplace("[RROUTER_BIN_PATH]", self.CS_ROUTER_DIR)
|
|
file.section("virtual_ipaddress {", "}", self._collect_ips())
|
|
file.commit()
|
|
|
|
# conntrackd configuration
|
|
guest = self.address.get_guest_if()
|
|
connt = CsFile(self.CONNTRACKD_CONF)
|
|
connt.section("Multicast {", "}", [
|
|
"IPv4_address 225.0.0.50\n",
|
|
"Group 3780\n",
|
|
"IPv4_interface %s\n" % guest.get_ip(),
|
|
"Interface %s\n" % guest.get_device(),
|
|
"SndSocketBuffer 1249280\n",
|
|
"RcvSocketBuffer 1249280\n",
|
|
"Checksum on\n"])
|
|
connt.section("Address Ignore {", "}", self._collect_ignore_ips())
|
|
connt.commit()
|
|
if connt.is_changed():
|
|
CsHelper.service("conntrackd", "restart")
|
|
|
|
if file.is_changed():
|
|
CsHelper.service("keepalived", "restart")
|
|
|
|
# FIXME
|
|
# enable/disable_pubip/master/slave etc. will need rewriting to use the new python config
|
|
|
|
# Configure heartbeat cron job
|
|
cron = CsFile("/etc/cron.d/heartbeat")
|
|
cron.add("SHELL=/bin/bash", 0)
|
|
cron.add("PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin", 1)
|
|
cron.add("*/1 * * * * root $SHELL %s/check_heartbeat.sh 2>&1 > /dev/null" % self.CS_ROUTER_DIR, -1)
|
|
cron.commit()
|
|
|
|
def set_fault(self):
|
|
""" Set fault mode on this router """
|
|
if not self.cl.is_redundant():
|
|
logging.error("Set fault called on non-redundant router")
|
|
return
|
|
logging.info("Router switched to fault mode")
|
|
ads = [o for o in self.address.get_ips() if o.needs_vrrp()]
|
|
for o in ads:
|
|
CsHelper.execute("ifconfig %s down" % o.get_device())
|
|
cmd = "%s -C %s" % (self.CONNTRACKD_BIN, self.CONNTRACKD_CONF)
|
|
CsHelper.execute("%s -s" % cmd)
|
|
CsHelper.service("ipsec", "stop")
|
|
CsHelper.service("xl2tpd", "stop")
|
|
CsHelper.service("cloud-passwd-srvr", "stop")
|
|
CsHelper.service("dnsmasq", "stop")
|
|
cl.dbag['config']['redundant_master'] = "false"
|
|
cl.save()
|
|
logging.info("Router switched to fault mode")
|
|
|
|
def set_backup(self):
|
|
""" Set the current router to backup """
|
|
if not self.cl.is_redundant():
|
|
logging.error("Set backup called on non-redundant router")
|
|
return
|
|
"""
|
|
if not self.cl.is_master():
|
|
logging.error("Set backup called on node that is already backup")
|
|
return
|
|
"""
|
|
logging.info("Router switched to backup mode")
|
|
ads = [o for o in self.address.get_ips() if o.is_public()]
|
|
for o in ads:
|
|
CsHelper.execute("ifconfig %s down" % o.get_device())
|
|
cmd = "%s -C %s" % (self.CONNTRACKD_BIN, self.CONNTRACKD_CONF)
|
|
CsHelper.execute("%s -d" % cmd)
|
|
CsHelper.service("ipsec", "stop")
|
|
CsHelper.service("xl2tpd", "stop")
|
|
CsHelper.service("cloud-passwd-srvr", "stop")
|
|
CsHelper.service("dnsmasq", "stop")
|
|
self._set_priority(self.CS_PRIO_DOWN)
|
|
self.cl.dbag['config']['redundant_master'] = "false"
|
|
#CsHelper.service("keepalived", "restart")
|
|
self.cl.save()
|
|
logging.info("Router switched to backup mode")
|
|
|
|
def set_master(self):
|
|
""" Set the current router to master """
|
|
if not self.cl.is_redundant():
|
|
logging.error("Set master called on non-redundant router")
|
|
return
|
|
"""
|
|
if self.cl.is_master():
|
|
logging.error("Set master called on master node")
|
|
return
|
|
"""
|
|
ads = [o for o in self.address.get_ips() if o.is_public()]
|
|
for o in ads:
|
|
# cmd2 = "ip link set %s up" % self.getDevice()
|
|
CsHelper.execute("ifconfig %s down" % o.get_device())
|
|
CsHelper.execute("ifconfig %s up" % o.get_device())
|
|
CsHelper.execute("arping -I %s -A %s -c 1" % (o.get_device(), o.get_ip()))
|
|
# FIXME Need to add in the default routes but I am unsure what the gateway is
|
|
# ip route add default via $gw table Table_$dev proto static
|
|
cmd = "%s -C %s" % (self.CONNTRACKD_BIN, self.CONNTRACKD_CONF)
|
|
CsHelper.execute("%s -c" % cmd)
|
|
CsHelper.execute("%s -f" % cmd)
|
|
CsHelper.execute("%s -R" % cmd)
|
|
CsHelper.execute("%s -B" % cmd)
|
|
CsHelper.service("ipsec", "restart")
|
|
CsHelper.service("xl2tpd", "restart")
|
|
CsHelper.service("cloud-passwd-srvr", "restart")
|
|
CsHelper.service("dnsmasq", "restart")
|
|
self.cl.dbag['config']['redundant_master'] = "true"
|
|
self._set_priority(self.CS_PRIO_UP)
|
|
self.cl.save()
|
|
#CsHelper.service("keepalived", "restart")
|
|
logging.info("Router switched to master mode")
|
|
|
|
def _set_priority(self, dir):
|
|
self.cl.set_priority(int(self.cl.get_priority()) + dir)
|
|
file = CsFile(self.KEEPALIVED_CONF)
|
|
file.search(" priority ", " priority %s" % self.cl.get_priority())
|
|
file.commit()
|
|
|
|
def _collect_ignore_ips(self):
|
|
"""
|
|
This returns a list of ip objects that should be ignored
|
|
by conntrackd
|
|
"""
|
|
lines = []
|
|
lines.append("\t\t\tIPv4_address %s\n" % "127.0.0.1")
|
|
lines.append("\t\t\tIPv4_address %s\n" % self.address.get_control_if().get_ip())
|
|
# FIXME - Do we need to also add any internal network gateways?
|
|
return lines
|
|
|
|
def _collect_ips(self):
|
|
"""
|
|
Construct a list containing all the ips that need to be looked afer by vrrp
|
|
This is based upon the address_needs_vrrp method in CsAddress which looks at
|
|
the network type and decides if it is an internal address or an external one
|
|
|
|
In a DomR there will only ever be one address in a VPC there can be many
|
|
The new code also gives the possibility to cloudstack to have a hybrid device
|
|
thet could function as a router and VPC router at the same time
|
|
"""
|
|
lines = []
|
|
for o in self.address.get_ips():
|
|
if o.needs_vrrp():
|
|
str = " %s brd %s dev %s\n" % (o.get_gateway_cidr(), o.get_broadcast(), o.get_device())
|
|
lines.append(str)
|
|
# This is wrong set_master and set_backup need to do this
|
|
self.check_is_up(o.get_device())
|
|
return lines
|
|
|
|
def check_is_up(self, device):
|
|
""" Ensure device is up """
|
|
cmd = "ip link show %s | grep 'state DOWN'" % device
|
|
for i in CsHelper.execute(cmd):
|
|
if " DOWN " in i:
|
|
cmd2 = "ip link set %s up" % device
|
|
CsHelper.execute(cmd2)
|