Bash script to add multiple resources to NFS pacemaker cluster Post: 303037243

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Top Forums Shell Programming and Scripting Bash script to add multiple resources to NFS pacemaker cluster Post 303037243 by Chubler_XL on Friday 26th of July 2019 05:28:49 PM

07-26-2019

Moderator

Lets look at this solution:

Code:

nfsenv="nfs-b2b-hg"
nfsoptions="rw,sync,no_root_squash"
lv=exports
mt="/nfs"
nfsgrp=nfsgroup
dirs_list="media hotdrive images"

clispec=(10.16.8.0/255.255.255.0 10.1.0.0/255.255.0.0 10.91.0.0/255.255.0.0)
cli2=(10.16 10.1 10.91)

drive=(media hotdrive images)
fsid=(1 2 3)

for((c=0;c<${#clispec[@]};c++))
do
   for((i=0;i<${#drive[@]};i++))
   do
      echo pcs resource create $nfsenv-${drive[i]}-${cli2[c]} exportfs clientspec=${clispec[c]} options=$nfsoptions directory=$mt/$lv/${drive[i]} fsid=${fsid[i]} --group $nfsgrp
   done
done

Here we are running two paired arrays clispec/cli2 and drive/fsid.

Although we could derive cli2 from clispec (first two octets) and fsid could be array index + 1 it's more useful as a general example to show how we can step thru the arrays with a counter and reference matching entries. For example drive[0]="media" and fsid[0]="1".

This idea also ends up being more useful if, for example, you wanted to add another entry to clispec array with 10.16.12.0/255.255.255.0 and make its cli2 value 10.16(2)

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LEARN ABOUT DEBIAN

crm_node

PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME

       Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

       crm_node command [options]

DESCRIPTION

       crm_node - Tool for displaying low-level node information

OPTIONS

       -?, --help
	      This text

       -$, --version
	      Version information

       -V, --verbose
	      Increase debug output

       -Q, --quiet
	      Essential output only

   Stack:
       -A, --openais
	      Only try connecting to an OpenAIS-based cluster

       -H, --heartbeat
	      Only try connecting to a Heartbeat-based cluster

   Commands:
       -e, --epoch
	      Display the epoch during which this node joined the cluster

       -q, --quorum
	      Display a 1 if our partition has quorum, 0 if not

       -l, --list
	      Display all known members (past and present) of this cluster (Not available for heartbeat clusters)

       -p, --partition
	      Display the members of this partition

       -i, --cluster-id
	      Display this node's cluster id

       -R, --remove=value
	      (Advanced, AIS-Only) Remove the (stopped) node with the specified nodeid from the cluster

   Additional Options:
       -f, --force

AUTHOR

       Written by Andrew Beekhof

REPORTING BUGS

       Report bugs to pacemaker@oss.clusterlabs.org

Pacemaker 1.1.7 						    April 2012							      PACEMAKER(8)