Re: [Engine-devel] Custom fencing

----- Original Message ----- > From: "Kristof Dufour" <kristof(a)dcin.be&gt; > To: engine-devel(a)ovirt.org > Sent: Saturday, February 1, 2014 11:46:45 AM > Subject: [Engine-devel] Custom fencing > > Hi All, > > I have a PDU that allows me to switch on or off all my servers, however > the brand isn¹t supported by oVirt. > > 1. Can I create my own custom fencing script? > 2. Where can I find any documentation about the syntax? > 3. How can I get my script in the list of fencing methods? > > > Hope that anyone can help me! Here are detailed instructions how to add a custom agent: Before you start 1) Copy your script to all hosts /usr/sbin directory , your script must be named as fence_<agent name> 2) Your script must support the following parameters -a <ipaddr> IP to talk to -l <login> Username/Login to control power -p <password> Password to control power 3) Make sure that your script has the same permissions as other fence_* scripts In addition you should know if your script support secure/port/slot and which are the actual parameters for each (You may pass any other script parameters in the options field as a collection of key=value pairs with comma separator between them) Now for the changs: a) Add your new agent to VdsFenceType option_value in vdc_options table for the relevant cluster version b) Add agent options mappings to VdsFenceOptionMapping option_value in vdc_options table for the relevant cluster version c) If the agent maps actually to another agent , add that to FenceAgentMapping option_value in vdc_options [not required in your case] Example : Adding zzz agent support for version 3.3 that maps internally to ipmi and have just port setting (from: port, slot, secure) that maps to the fencing script ipport a) VdsFenceType for 3.3 becomes "apc,apc_snmp,bladecenter,cisco_ucs,drac5,eps,ilo,ilo2,ilo3,ilo4,ipmilan,r sa,rsb,wti,zzz" b) VdsFenceOptionMapping for 3.3 becomes "apc:secure=secure,port=ipport,slot=port;apc_snmport=port;bladecenter:secu re=secure,port=ipport,slot=port;cisco_ucs:secure=ssl,slot=port;drac5:secur e=se cure,slot=port;eps:slot=port;ilo:secure=ssl,port=ipport;ipmilan:;ilo2:secu re=ssl,port=ipport;ilo3:;ilo4:;rsa:secure=secure,port=ipport;rsb:;wti:secu re=secure,port=ipport,slot=port;zzz:port=ipport" c) FenceAgentMapping becomes "ilo2=ilo,ilo3=ipmilan,ilo4=ipmilan,zzz=ipmilan" [not required in your case] NOTES 1) Please backup your database 2) You should restart the engine for this to take place 3) Custom definitions will be overridden in your next upgrade , for the long run please fill RFE so it will be part of the supported agents Please let me know if that works for you. > > > > Met vriendelijke groeten, > With kind regards, > Kristof Dufour > > _______________________________________________ > Engine-devel mailing list > Engine-devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/engine-devel >