From PlcWiki
sed -i 's/^SELINUX=.*$/SELINUX=disabled/' /etc/selinux/config
sed -i 's/^NM_CONTROLLED=.*$/NM_CONTROLLED="no"/' /etc/sysconfig/network-scripts/ifcfg-eth0
copykey 172.100.100.2 root
############## NETWORK #####################
/etc/modprobe.d/bond0.conf :
alias bond0 bonding
/etc/sysconfig/network-scripts/ifcfg-bond0 :
DEVICE="bond0"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
USERCTL=no
BONDING_OPTS="miimon=100 mode=0"
#MTU=9000
BROADCAST="172.100.100.255"
IPADDR="172.100.100.1"
NETMASK="255.255.255.0"
/etc/sysconfig/network-scripts/ifcfg-eth1 :
UUID="5dc100ad-e64f-4f60-b7c5-92f038d55a9c"
HWADDR="6C:AE:8B:24:0F:93"
DEVICE="eth1"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
MASTER=bond0
SLAVE=yes
USERCTL=no
yum install bridge-tools
/etc/sysconfig/network-scripts/ifcfg-br0 :
DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
ONBOOT=yes
BROADCAST="10.5.1.255"
DNS1="10.5.1.12"
GATEWAY="10.5.1.241"
IPADDR="10.5.1.97"
NETMASK="255.255.255.0"
NM_CONTROLLED=no
IPV6INIT=no
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth0 :
UUID="cbef3b16-05c7-4b10-8007-c576654d49a7"
HWADDR="6C:AE:8B:24:0F:92"
DEVICE="eth0"
TYPE="Ethernet"
BRIDGE=br0
ONBOOT="yes"
NM_CONTROLLED="no"
ifdown eth0; ifup eth0; ifup br0
############## DRBD #####################
rpm -Uvh http://elrepo.org/elrepo-release-6-4.el6.elrepo.noarch.rpm
yum install kmod-drbd84
yum install drbd84-utils
# Bacha na fstab !
/etc/drbd.d/clever.res :
resource clever {
device /dev/drbd1;
disk /dev/mapper/vg_saszwiplckc1-lv_drbd;
meta-disk internal;
startup {
# become-primary-on plczwicl01.crossen.sas-automotive.com;
}
on plczwicl01.crossen.sas-automotive.com {
address 172.100.100.1:7789;
}
on plczwicl02.crossen.sas-automotive.com {
address 172.100.100.2:7789;
}
net {
protocol A;
# on-congestion pull-ahead;
# congestion-fill 10M;
# congestion-extents 2000;
after-sb-0pri discard-zero-changes;
after-sb-1pri discard-secondary;
after-sb-2pri disconnect;
verify-alg crc32c;
csums-alg crc32c;
data-integrity-alg crc32c;
}
}
drbdadm create-md clever
drbdadm primary --force all
drbd-overview
mkfs.ext4 /dev/drbd1
/etc/fstab :
/dev/drbd1 /opt ext4 defaults,_netdev 0 0
mount /opt
############## KVM #####################
yum install kvm
yum install virt-manager libvirt libvirt-python python-virtinst
yum install avahi
/etc/init.d/messagebus restart
/etc/init.d/avahi-daemon restart
modprobe kvm
modprobe kvm-intel
/etc/init.d/libvirtd start
yum install xauth
yum install xorg-x11-fonts-misc dejavu-sans-fonts
mkdir -p /opt/libvirt/var
mv /var/lib/libvirt /opt/libvirt/
mv /opt/libvirt/libvirt /opt/libvirt/var
ln -s /opt/libvirt/var /var/lib/libvirt
mkdir -p /opt/libvirt/etc
mv /etc/libvirt /opt/libvirt/
mv /opt/libvirt/libvirt /opt/libvirt/etc
ln -s /opt/libvirt/etc /etc/libvirt
virt-manager
chkconfig libvirtd off
chkconfig drbd on
############## Cluster #####################
yum install mailx ntp
chkconfig ntp on
yum install pacemaker
/etc/corosync/corosync.conf :
# Please read the corosync.conf.5 manual page
compatibility: whitetank
totem {
version: 2
secauth: off
threads: 0
interface {
ringnumber: 0
bindnetaddr: 172.100.100.0
mcastaddr: 226.94.1.1
mcastport: 4000
ttl: 1
}
}
logging {
fileline: off
to_stderr: no
to_logfile: yes
to_syslog: yes
logfile: /var/log/cluster/corosync.log
debug: off
timestamp: on
logger_subsys {
subsys: AMF
debug: on
}
}
amf {
mode: disabled
}
aisexec {
user: root
group: root
}
service {
# Load the Pacemaker Cluster Resource Manager
name: pacemaker
ver: 1
}
chown -R hacluster.haclient /var/log/cluster
chkconfig pacemaker on
chkconfig corosync on
scp /etc/init.d/clevervm
service iptables stop
chkconfig iptables off
crm configure save /tmp/cluster.crm
mcedit /tmp/cluster.crm # Bacha na drbd resource !
service corosync start
service pacemaker start
crm configure load replace /tmp/cluster.crm
/etc/aliases :
root: plc.emergency@clever.cz,Joerg.Martin@sas-automotive.com
newaliases
/etc/postfix/main.cf :
relayhost = [sasexrel.sas-automotive.com]
http://plcwiki.clever.cz/index.php/Cluster_MBA7
