In our previous tutorial, we have shown you how to install corosync and pacemaker.
We will show you now how to add resources.
Before starting the configurations, please disable STONITH (Shoot The Other Node In The Head) with CRM command:
crm configure property stonith-enabled=false
check if stonith diabled:
[[email protected] ~]# crm configure show node node1 node node2 property $id="cib-bootstrap-options" dc..-version="1.1.10-14el6_52-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false"
Add Cluster Resources
The cluster resource is defined by a Resource Agent and most know cluster agent classes are:
LSB (Linux Standard Base) – These are common cluster resource agents found in /etc/init.d directory (init scripts).
Example:
[[email protected] ~]# crm ra list lsb NetworkManager   abrt-ccpp        abrt-oops        abrtd            acpid            atd              auditd           autofs blk-availability bluetooth        certmonger       cntlmd           corosync         corosync-notifyd cpuspeed         cups dnsmasq          firstboot        haldaemon        halt             htcacheclean     httpd            ip6tables        iptables irqbalance       kdump            killall          lvm2-lvmetad     lvm2-monitor     mdmonitor        messagebus       netconsole netfs            network          nfs              nfslock          ntpd             ntpdate          oddjobd          pacemaker pacemaker_remote portreserve      psacct           quota_nld        rdisc            restorecond      rngd             rpcbind rpcgssd          rpcidmapd        rpcsvcgssd       rsyslog          sandbox          saslauthd        single           smartd snmpd            snmptrapd        spawn-fcgi       spice-vdagentd   sshd             sssd             udev-post        wdaemon winbind          wpa_supplicant   ypbind [[email protected] ~]#
OCF (Open Cluster Framework) – These are actually extended LSB cluster resource agents and usually support additional parameters
example:
[[email protected] ~]# crm ra list ocf ASEHAagent.sh      AoEtarget          AudibleAlarm       CTDB               ClusterMon         Delay              Dummy EvmsSCC            Evmsd              Filesystem         HealthCPU          HealthSMART        ICP                IPaddr IPaddr2            IPsrcaddr          IPv6addr           LVM                LinuxSCSI          MailTo             ManageRAID ManageVE           Pure-FTPd          Raid1              Route              SAPDatabase        SAPInstance        SendArp ServeRAID          SphinxSearchDaemon Squid              Stateful           SysInfo            SystemHealth       VIPArip VirtualDomain      WAS                WAS6               WinPopup           Xen                Xinetd             anything apache             apache.sh          asterisk           clusterfs.sh       conntrackd         controld           db2 dhcpd              drbd               drbd.sh            eDir88             ethmonitor         exportfs           fio fs.sh              iSCSILogicalUnit   iSCSITarget        ids                ip.sh              iscsi              jboss ldirectord         lvm.sh             lvm_by_lv.sh       lvm_by_vg.sh       lxc                mysql              mysql-proxy mysql.sh           named              named.sh           netfs.sh           nfsclient.sh       nfsexport.sh       nfsserver nfsserver.sh       nginx              ocf-shellfuncs     openldap.sh        oracle             oracledb.sh        orainstance.sh oralistener.sh     oralsnr            pgsql              ping               pingd              portblock          postfix postgres-8.sh      pound              proftpd            remote             rsyncd             rsyslog            samba.sh script.sh          scsi2reservation   service.sh         sfex               slapd              smb.sh             svclib_nfslock symlink            syslog-ng          tomcat             tomcat-5.sh        tomcat-6.sh        varnish            vm.sh vmware             zabbixserver [[email protected] ~]#
Cluster Resource Name: Cluster_Server
Resource Agent: ocf:heartbeat:IPaddr2 (get this info with “crm ra meta IPaddr2″)
IP address: 192.168.1.200
Netmask: 24
Monitor interval: 30 seconds (get this info with “crm ra meta IPaddr2″)
Run the command in one of the nodes:
crm configure primitive Cluster_Server ocf:heartbeat:IPaddr2 params ip=192.168.1.200 cidr_netmask="24" op monitor interval="30s"
 Check Cluster Configuration:
[[email protected] ~]# crm configure show node node1 node node2 primitive Cluster_Server ocf::heartbeatIPaddr2 Â Â Â Â Â Â Â params ip="192.168.1.200" cidr_netmask="24" Â Â Â Â Â Â Â op monitor interval="30s" property $id="cib-bootstrap-options" Â Â Â Â Â Â Â dc..-version="1.1.10-14el6_52-368c726" Â Â Â Â Â Â Â cluster-infrastructure="classic openais (with plugin)" Â Â Â Â Â Â Â expected-quorum-votes="2" Â Â Â Â Â Â Â stonith-enabled="false" Â Â Â Â Â Â Â no-quorum-policy="ignore" [[email protected] ~]#
 Cluster Status:
[[email protected] ~]# crm status Last updated: Thu Mar 6 11:20:52 2014 Last change: Thu Mar 6 09:57:49 2014 via cibadmin on node1 Stack: classic openais (with plugin) Current DC: node2 - partition with quorum Version: 1.1.10-14.el6_5.2-368c726 2 Nodes configured, 2 expected votes 1 Resources configured Online: [ node1 node2 ]  Cluster_Server (ocf::heartbeat:IPaddr2):      Started node2
 Add Apache (httpd) Resource:
crm configure primitive Apache ocf:heartbeat:apache params configfile=/etc/httpd/conf/httpd.conf op monitor interval=1min
If you have any warning like this:
WARNING: Apache: default timeout 20s for start is smaller than the advised 40s WARNING: Apache: default timeout 20s for stop is smaller than the advised 60s
fix it with:
crm configure property default-action-timeout="240"
Check:
[[email protected] ~]# crm status Last updated: Thu Mar 6 11:39:44 2014 Last change: Thu Mar 6 11:39:36 2014 via cibadmin on node1 Stack: classic openais (with plugin) Current DC: node2 - partition with quorum Version: 1.1.10-14.el6_5.2-368c726 2 Nodes configured, 2 expected votes 2 Resources configured Online: [ node1 node2 ]  Cluster_Server (ocf::heartbeat:IPaddr2):      Started node2  Apache (ocf::heartbeat:apache):       Started node1 [[email protected] ~]#
That means (http://192.168.1.200) should be live even if node1 or node down.
Deleting Apache (httpd) Resource
 crm resource stop Apache  crm configure delete Apache
Deleting IP Address Resource
crm resource stop Cluster_Server crm configure delete Cluster_Server
