/
galera_setup_gcomm_mod.py
executable file
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/
galera_setup_gcomm_mod.py
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#!/usr/bin/python
#
# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
#
import os
import sys
import argparse
import ConfigParser
import time
import commands
from fabric.api import local,run
from fabric.context_managers import lcd, hide, settings
from fabric.operations import get, put
from contrail_provisioning.common.base import ContrailSetup
from contrail_provisioning.openstack.ha.templates import galera_param_template
from contrail_provisioning.openstack.ha.templates import cmon_param_template
from contrail_provisioning.openstack.ha.templates import cmon_conf_template
from contrail_provisioning.openstack.ha.templates import wsrep_conf_template
from contrail_provisioning.openstack.ha.templates import wsrep_conf_centos_template
class GaleraSetup(ContrailSetup):
def __init__(self, args_str = None):
super(GaleraSetup, self).__init__()
self.global_defaults = {
'self_ip': '127.0.0.1',
'keystone_ip': '127.0.0.1',
'openstack0_user': 'root',
'openstack0_password': 'c0ntrail123',
}
self._args = None
if not args_str:
args_str = ' '.join(sys.argv[1:])
self.parse_args(args_str)
self.mysql_redo_log_sz = '5242880'
def is_clustered(self, galera_ip_list, self_ip):
print "is_clustered"
status,output = commands.getstatusoutput("cat /etc/contrail/mysql.token")
mysql_token = output
status,output = commands.getstatusoutput('mysql -uroot -p%s -e "show status like \'wsrep_incoming_addresses\'"' % mysql_token )
print "wsrep_incoming_addresses: %s" % output
wsrep_nodes = (':3306,'.join(self._args.galera_ip_list) + ':3306')
output_list = output.split("\t")
if output.find(self_ip) >= 0:
return True
else:
return False
def is_cluster_synced(self):
print "is_cluster_synced"
status,output = commands.getstatusoutput("cat /etc/contrail/mysql.token")
mysql_token = output
status,output = commands.getstatusoutput('mysql -uroot -p%s -e "show status like \'wsrep_local_state\'"' % mysql_token )
print "wsrep_local_state: %s" % output
output_list = []
output_list = output.split('\t')
if ('4' in output_list):
return True
else:
return False
def is_cluster_running(self, galera_ip_list, host='127.0.0.1'):
print "is_cluster_running"
status,output = commands.getstatusoutput("cat /etc/contrail/mysql.token")
mysql_token = output
cmd = "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null %s \"mysql -uroot -p%s -e 'show status'\" | grep wsrep_incoming_addresses" % (host, mysql_token)
print cmd
# status,output = commands.getstatusoutput('mysql -uroot -p%s -h %s -e "show status like \'wsrep_incoming_addresses\'"' % (mysql_token, host) )
status,output = commands.getstatusoutput(cmd)
print "wsrep_incoming_addresses: %s" % output
output_list = []
wsrep_nodes = (':3306,'.join(galera_ip_list) + ':3306')
output_list = output.split("\t")
if (wsrep_nodes in output_list):
return True
else:
return False
def parse_args(self, args_str):
'''
Eg. setup-vnc-galera --openstack0_user root --openstack0_password c0ntrail123 --self_ip 10.1.5.11
--keystone_ip 10.1.5.11 --galera_ip_list 10.1.5.11 10.1.5.12 --openstack_index 1
--internal_vip 10.1.5.13 --zoo_ip_list 10.1.5.11 10.1.5.12 --keystone_user keystone
--keystone_pass keystone --cmon_user cmon --cmon_pass cmon --monitor_galera True
'''
parser = self._parse_args(args_str)
parser.add_argument("--self_ip", help = "IP Address of this system")
parser.add_argument("--keystone_ip", help = "IP Address of keystone node or Virtual IP of the cluster nodes.")
parser.add_argument("--openstack_index", help = "The index of this openstack node", type = int)
parser.add_argument("--openstack0_user", help = "Sudo user of this openstack node")
parser.add_argument("--openstack0_passwd", help = "Sudo user password of this openstack node")
parser.add_argument("--galera_ip_list", help = "List of IP Addresses of galera servers", nargs='+', type=str)
parser.add_argument("--internal_vip", help = "Internal Virtual IP Address of HA Openstack nodes")
parser.add_argument("--external_vip", help = "External Virtual IP Address of HA Openstack nodes"),
parser.add_argument("--zoo_ip_list", help = "List of IP Addresses of zookeeper servers", nargs='+', type=str)
parser.add_argument("--keystone_user", help = "Keystone user")
parser.add_argument("--keystone_pass", help = "Keystone password")
parser.add_argument("--cmon_user", help = "Cmon user")
parser.add_argument("--cmon_pass", help = "Cmon pass")
parser.add_argument("--monitor_galera", help = "Monitor Galera. Value can be boolean in string True / False")
self._args = parser.parse_args(self.remaining_argv)
def fixup_config_files(self):
# fix cmon_param
print "fixup_config_files"
zk_servers_ports = ','.join(['%s:2181' %(s) for s in self._args.zoo_ip_list])
template_vals = {'__internal_vip__' : self._args.internal_vip,
'__haproxy_dips__' :
'"' + '" "'.join(self._args.galera_ip_list) + '"',
'__external_vip__' : self._args.external_vip,
'__zooipports__' : zk_servers_ports,
'__keystoneuser__': self._args.keystone_user,
'__keystonepass__': self._args.keystone_pass,
'__cmonuser__': self._args.cmon_user,
'__cmonpass__': self._args.cmon_pass,
'__monitorgalera__': self._args.monitor_galera
}
self._template_substitute_write(cmon_param_template.template,
template_vals,
self._temp_dir_name + '/cmon_param')
local("sudo mv %s/cmon_param /etc/contrail/ha/" % (self._temp_dir_name))
# fix galera_param
template_vals = {'__mysql_host__' : self._args.self_ip,
'__mysql_wsrep_nodes__' :
'"' + '" "'.join(self._args.galera_ip_list) + '"'}
self._template_substitute_write(galera_param_template.template,
template_vals,
self._temp_dir_name + '/galera_param')
local("sudo mv %s/galera_param /etc/contrail/ha/" % (self._temp_dir_name))
local("echo %s > /etc/contrail/galeraid" % self._args.openstack_index)
if self.pdist in ['Ubuntu']:
local("ln -sf /bin/true /sbin/chkconfig")
self.mysql_svc = 'mysql'
self.mysql_conf = '/etc/mysql/my.cnf'
wsrep_conf = '/etc/mysql/conf.d/wsrep.cnf'
wsrep_conf_file = 'wsrep.cnf'
wsrep_template = wsrep_conf_template.template
elif self.pdist in ['centos', 'redhat']:
self.mysql_svc = 'mysqld'
self.mysql_conf = '/etc/my.cnf'
wsrep_conf = self.mysql_conf
wsrep_conf_file = 'my.cnf'
wsrep_template = wsrep_conf_centos_template.template
self.mysql_token_file = '/etc/contrail/mysql.token'
self.install_mysql_db()
if self._args.openstack_index == 1:
self.create_mysql_token_file()
else:
self.get_mysql_token_file()
self.set_mysql_root_password()
self.setup_grants()
self.setup_cron()
# fixup mysql/wsrep config
"""
local('sed -i -e "s/bind-address/#bind-address/" %s' % self.mysql_conf)
local('sed -ibak "s/max_connections.*/max_connections=10000/" %s' % self.mysql_conf)
local('sed -i -e "s/key_buffer/#key_buffer/" %s' % self.mysql_conf)
local('sed -i -e "s/max_allowed_packet/#max_allowed_packet/" %s' % self.mysql_conf)
local('sed -i -e "s/thread_stack/#thread_stack/" %s' % self.mysql_conf)
local('sed -i -e "s/thread_cache_size/#thread_cache_size/" %s' % self.mysql_conf)
local('sed -i -e "s/myisam-recover/#myisam-recover/" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\lock_wait_timeout=600" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\interactive_timeout = 60" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\wait_timeout = 60" %s' % self.mysql_conf)
# FIX for UTF8
if self.pdist in ['Ubuntu']:
sku = local("dpkg -p contrail-install-packages | grep Version: | cut -d'~' -f2", capture=True)
if sku == 'icehouse':
local('sed -i "/\[mysqld\]/a\character-set-server = utf8" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\init-connect=\'SET NAMES utf8\'" %s' % self.mysql_conf)
local('sed -i "/\[mysqld\]/a\collation-server = utf8_general_ci" %s' % self.mysql_conf)
"""
# if self._args.openstack_index == 1:
# wsrep_cluster_address= ''
# else:
wsrep_cluster_address = (':4567,'.join(self._args.galera_ip_list) + ':4567')
template_vals = {'__wsrep_nodes__' : wsrep_cluster_address,
'__wsrep_node_address__' : self._args.self_ip,
'__mysql_token__' : self.mysql_token,
'__wsrep_cluster_size__': len(self._args.galera_ip_list),
'__wsrep_inc_offset__': self._args.openstack_index*100,
}
self._template_substitute_write(wsrep_template, template_vals,
self._temp_dir_name + '/%s' % wsrep_conf_file)
local("sudo mv %s/%s %s" % (self._temp_dir_name, wsrep_conf_file,
wsrep_conf))
# if self._args.openstack_index == 1:
# local('sed -ibak "s#wsrep_cluster_address=.*#wsrep_cluster_address=gcomm://#g" %s' % (wsrep_conf))
# fixup cmon config
template_vals = {'__mysql_nodes__' : ','.join(self._args.galera_ip_list),
'__mysql_node_address__' : self._args.internal_vip,
}
self._template_substitute_write(cmon_conf_template.template, template_vals,
self._temp_dir_name + '/cmon.cnf')
local("sudo mv %s/cmon.cnf /etc/cmon.cnf" % (self._temp_dir_name))
if self.is_clustered(self._args.galera_ip_list, self._args.self_ip):
return
with settings(warn_only=True):
local("service contrail-hamon stop")
local("service cmon stop")
local("service mysql stop")
# if not self.is_cluster_updated():
local("rm -rf /var/lib/mysql/grastate.dat")
local("rm -rf /var/lib/mysql/galera.cache")
self.cleanup_redo_log()
def install_mysql_db(self):
local('chkconfig %s on' % self.mysql_svc)
local('chown -R mysql:mysql /var/lib/mysql/')
with settings(warn_only=True):
install_db = local("service %s restart" % self.mysql_svc).failed
if install_db:
local('mysql_install_db --user=mysql --ldata=/var/lib/mysql')
self.cleanup_redo_log()
local("service %s restart" % self.mysql_svc)
def create_mysql_token_file(self):
# Use MYSQL_ROOT_PW from the environment or generate a new password
if os.path.isfile(self.mysql_token_file):
self.mysql_token = local('cat %s' % self.mysql_token_file, capture=True).strip()
else:
if os.environ.get('MYSQL_ROOT_PW'):
self.mysql_token = os.environ.get('MYSQL_ROOT_PW')
else:
self.mysql_token = local('openssl rand -hex 10', capture=True).strip()
local("echo %s > %s" % (self.mysql_token, self.mysql_token_file))
local("chmod 400 %s" % self.mysql_token_file)
def get_mysql_token_file(self):
retries = 10
if not os.path.isfile(self.mysql_token_file):
while retries:
with settings(host_string = '%s@%s' % (self._args.openstack0_user, self._args.galera_ip_list[0]),
password=self._args.openstack0_passwd, warn_only=True):
if get('%s' % self.mysql_token_file, '/etc/contrail/').failed:
time.sleep(1)
retries -= 1
print " Retry(%s) to get the %s." % ((5 - retries), self.mysql_token_file)
else:
break
self.mysql_token = local('cat %s' % self.mysql_token_file, capture=True).strip()
def set_mysql_root_password(self):
# Only for the very first time
mysql_priv_access = "mysql -uroot -e"
# Set root password for mysql
with settings(warn_only=True):
if local('echo show databases |mysql -u root > /dev/null').succeeded:
local('%s "use mysql; update user set password=password(\'%s\') where user=\'root\'"' % (mysql_priv_access, self.mysql_token))
local('mysqladmin password %s' % self.mysql_token)
elif local('echo show databases |mysql -u root -p%s> /dev/null' % self.mysql_token).succeeded:
print "Mysql root password is already set to '%s'" % self.mysql_token
else:
raise RuntimeError("MySQL root password unknown, reset and retry")
def setup_grants(self):
mysql_cmd = "mysql --defaults-file=%s -uroot -p%s -e" % (self.mysql_conf, self.mysql_token)
host_list = self._args.galera_ip_list + ['localhost', '127.0.0.1']
for host in host_list:
with settings(hide('everything'),warn_only=True):
local('mysql -u root -p%s -e "CREATE USER \'root\'@\'%s\' IDENTIFIED BY %s"' % (self.mysql_token, host, self.mysql_token))
local('%s "SET WSREP_ON=0;SET SQL_LOG_BIN=0; GRANT ALL ON *.* TO root@%s IDENTIFIED BY \'%s\'"' %
(mysql_cmd, host, self.mysql_token))
local('%s "SET wsrep_on=OFF; DELETE FROM mysql.user WHERE user=\'\'"' % mysql_cmd)
local('%s "FLUSH PRIVILEGES"' % mysql_cmd)
def setup_cron(self):
with settings(hide('everything'), warn_only=True):
local('crontab -l > %s/galera_cron' % self._temp_dir_name)
local('echo "0 * * * * /opt/contrail/bin/contrail-token-clean.sh" >> %s/galera_cron' % self._temp_dir_name)
local('crontab %s/galera_cron' % self._temp_dir_name)
local('rm %s/galera_cron' % self._temp_dir_name)
def run_services(self):
print "run_services"
if self.is_cluster_synced( ):
local("service %s restart" % self.mysql_svc)
if self.is_clustered(self._args.galera_ip_list, self._args.self_ip):
return
self.cleanup_redo_log()
if self._args.openstack_index == 1 and self.is_cluster_running(self._args.galera_ip_list[1:], self._args.galera_ip_list[1]):
print "Mysql cluster already present for '%s'" % self._args.galera_ip_list[1:]
local("service %s restart" % self.mysql_svc)
elif self._args.openstack_index == 1:
local("service %s stop" % self.mysql_svc)
local("service %s start --wsrep_cluster_address=gcomm://" % self.mysql_svc)
else:
cmd = "mysql -h%s -uroot -p%s " % (self._args.galera_ip_list[0], self.mysql_token)
cmd += "-e \"show global status where variable_name='wsrep_local_state'\" | awk '{print $2}' | sed '1d'"
for i in range(10):
wsrep_local_state = local(cmd, capture=True).strip()
if wsrep_local_state == '4':
break
else:
time.sleep(2)
print "Waiting for first galera node to create new cluster."
if wsrep_local_state != '4':
raise RuntimeError("Unable able to bring up galera in first node, please verify and continue.")
local("service %s restart" % self.mysql_svc)
local("sudo update-rc.d -f mysql remove")
local("sudo update-rc.d mysql defaults")
def cleanup_redo_log(self):
# Delete the default initially created redo log file
# This is required coz the wsrep config changes the
# size of redo log file
with settings(warn_only = True):
siz = local("ls -l /var/lib/mysql/ib_logfile1 | awk '{print $5}'", capture=True).strip()
if siz == self.mysql_redo_log_sz:
local("rm -rf /var/lib/mysql/ib_logfile*")
def main(args_str = None):
galera = GaleraSetup(args_str)
galera.setup()
if __name__ == "__main__":
main()