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fabfile.py
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fabfile.py
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from fabric.operations import *
from fabric.api import *
import socket
import sys
import string
import augeas
def cluster_conf(members,host):
os.mkdir('/tmp/'+host+'/etc/cluster')
file = open('/tmp/'+host+'/etc/cluster/cluster.conf','w')
file.write('<?xml version="1.0" ?>\n')
file.write(' <cluster config_version="1" name="test">\n')
file.write(' <clusternodes>\n')
loopid = 1
for member in members.iterkeys():
#nodeid = members.index(member)+1
nodeid = loopid
loopid = loopid+1
file.write(' <clusternode name="'+member+'" nodeid="'+str(nodeid)+'" votes="1"/>\n')
file.write(' </clusternodes>\n')
file.write('\n')
file.write(' <cman/>\n')
file.write(' <rm log_level="7">\n')
file.write('\n')
file.write(' <failoverdomains>\n')
loopid = 1
for member in members.iterkeys():
#nodeid = members.index(member)+1
nodeid = loopid
loopid = loopid +1
file.write(' <failoverdomain name="only_broker'+str(nodeid)+'" restricted="1">\n')
file.write(' <failoverdomainnode name="'+member+'"/>\n')
file.write(' </failoverdomain>\n')
file.write('\n')
file.write(' </failoverdomains>\n')
file.write('\n')
file.write(' <resources>\n')
file.write(' <script name="qpidd" file="/etc/init.d/qpidd" />\n')
file.write(' </resources>\n')
file.write('\n')
loopid = 1
for member in members.iterkeys():
#nodeid = members.index(member)+1
nodeid = loopid
loopid = loopid+1
file.write(' <service name="qpidd_broker'+str(nodeid)+'" domain="only_broker'+str(nodeid)+'">\n')
file.write(' <script ref="qpidd" />\n')
file.write(' </service>\n')
file.write('\n')
file.write(' </rm>\n')
file.write('</cluster>\n')
file.close()
put('/tmp/'+env.host_string+'/etc/cluster/cluster.conf','/etc/cluster/cluster.conf')
def get_addr():
run('ip addr | grep `netstat -nr | grep UG | awk \'{print $2}\' | cut -f1-3 -d.` | awk \'{print $2}\' | cut -f1 -d/')
def ptr_lookup(host):
ipaddr = socket.gethostbyname_ex(host)[2]
return ipaddr
def get_remote_configs():
get('/etc/qpidd.conf','/tmp/'+env.host_string+'/etc/qpidd.conf')
get('/etc/security/limits.conf','/tmp/'+env.host_string+'/etc/security/limits.conf')
get('/etc/hosts','/tmp/'+env.host_string+'/etc/hosts')
get('/etc/corosync/corosync.conf.example','/tmp/'+env.host_string+'/etc/corosync/corosync.conf')
def qpidd_cluster_config():
addr = members.itervalues().next().split('.')
bindaddr = addr[0]+'.'+addr[1]+'.'+addr[2]+'.0'
aug = augeas.Augeas(root='/tmp/'+env.host_string)
aug.clear_transforms()
aug.add_transform('@Qpid','/etc/qpidd.conf')
aug.add_transform('@Corosync','/etc/corosync/corosync.conf')
aug.load()
aug.set("/files/etc/qpidd.conf/auth","no")
aug.set("/files/etc/qpidd.conf/cluster-cman","yes")
aug.set("/files/etc/qpidd.conf/cluster-name",cluster)
aug.set("/files/etc/qpidd.conf/log-enable","debug")
aug.set("/files/etc/qpidd.conf/log-to-file","/tmp/qpidd.log")
aug.set("/files/etc/corosync/corosync.conf/totem/interface/bindnetaddr",bindaddr)
try:
aug.save()
except:
error = str(aug.match("/augeas//error")[0])
print "Error Path: "+error
print aug.get(error+'/message')
put('/tmp/'+env.host_string+'/etc/qpidd.conf','/etc/qpidd.conf')
put('/tmp/'+env.host_string+'/etc/corosync/corosync.conf','/etc/corosync/corosync.conf')
put('/home/areplogle/scripts/etc/init.d/qpidd','/etc/init.d/qpidd')
run('chown -R root:root /var/lib/qpidd')
run('chown -R root:root /var/run/qpidd')
def mod_hosts():
aug = augeas.Augeas(root='/tmp/'+env.host_string)
for member in members.iterkeys():
node = 00+int(members[member].split('.')[3])
aug.set("/files/etc/hosts/"+str(node)+"/ipaddr",members[member])
aug.set("/files/etc/hosts/"+str(node)+"/canonical",member)
try:
aug.save()
except:
error = str(aug.match("/augeas//error")[0])
print "Error Path: "+error
print aug.get(error+'/message')
break
put('/tmp/'+env.host_string+'/etc/hosts','/etc/hosts')
def install_single():
req = prereq_check()
if (req[0] == 1 and req[1] == 1):
run('yum -y groupinstall "MRG Messaging"')
run('yum -y install qpid-tools')
else:
print env.host_string+" does not meet the prerequisites."
print 'Please add the following RHN Channels -'
print ' '+req[3]
print ' '+req[4]+'\n\n'
sys.exit()
def prereq_check():
platform = str(run('uname -p'))
major_ver = str(run("cat /etc/redhat-release | awk '{print $7}' | cut -f1 -d."))
mrg_chn = "rhel-"+platform+"-server-"+major_ver+"-mrg-messaging-2"
mrg_req = 0
ha_chn = "rhel-"+platform+"-server-ha-"+major_ver
ha_req = 0
opt_chn = "rhel-"+platform+"-server-optional-"+major_ver
opt_req = 0
channels = []
foo = str(run('rhn-channel --list')).split('\n')
for channel in foo:
channels.append(channel.split('\r')[0])
if channels.count(mrg_chn) > 0:
mrg_req = 1
if channels.count(opt_chn) > 0:
opt_req = 1
if channels.count(ha_chn) > 0:
ha_req = 1
return mrg_req, opt_req, ha_req, mrg_chn, opt_chn, ha_chn
def install_cluster():
req = prereq_check()
if (req[0] == 1 and req[1] == 1 and req[2] == 1):
run('yum -y groupinstall "High Availability"')
run('yum -y groupinstall "MRG Messaging"')
run('yum -y install qpid-tools')
run('yum -y install qpid-cpp-server-cluster')
else:
print env.host_string+" does not meet the prerequisites."
print 'Please add the following RHN Channels -'
print ' '+req[3]
print ' '+req[4]
print ' '+req[5]+'\n\n'
sys.exit()
cluster_setup()
def cluster_setup():
run('service corosync stop')
run('chkconfig corosync off')
run('service iptables stop')
run('chkconfig iptables off')
#run('service NetworkManager stop')
#run('chkconfig NetworkManager off')
get_remote_configs()
qpidd_cluster_config()
cluster_conf(members,env.host_string)
mod_hosts()
run('service cman start')
run('chkconfig cman on')
run('service rgmanager start')
run('chkconfig rgmanager on')
run('setenforce permissive')
if sys.argv[-1] == 'install_cluster':
cluster = raw_input('Cluster Name: ')
membercnt = int(raw_input('Number of cluster members: '))
loopcount = 1
members = {}
while membercnt > 0:
#members.append(raw_input('Host number '+str(loopcount)+': ') )
member = raw_input('Host number '+str(loopcount)+': ')
ipaddy = ptr_lookup(member)[0]
members[member] = ipaddy
membercnt = membercnt - 1
loopcount = loopcount + 1