Kamailio KA proxy

Below steps are for configuring the active and passive Kamailio  HA.

##High Availability Cluster on Centos 7 using Corosync & Pacemaker & pcs
yum -y install corosync pacemaker pcs
yum install gdb*
systemctl enable pcsd.service
systemctl start pcsd.service

#### set the hacluster user password in both node (password must be same)
passwd hacluster
##### verify the both node are able to communicate
pcs cluster auth vm1 vm2


###### Set the VM cluster (vmserver is VM cluster name and  vm1 vm2 are the node)

pcs cluster setup --name vmserver vm1 vm2

####### disable the stonith and quorum   option.  for 2 node, both options are not required.
pcs property set stonith-enabled=false
pcs property set no-quorum-policy=ignore

########## create the vertual IP resource
pcs resource create virtualip ocf:heartbeat:IPaddr2 ip=192.168.1.243 cidr_netmask=32 op monitor interval=30s

########## add the kamailio script in side below location
cd /usr/lib/ocf/resource.d/heartbeat/

##########create the kamailio script
pcs resource create kamailio1 ocf:heartbeat:kamailio  listen_address=192.168.1.240 op monitor interval=30s

pcs constraint colocation add kamailio1 virtualip  INFINITY
pcs constraint order virtualip then kamailio1

pcs cluster stop --all
pcs cluster start  --all