Bash script to add multiple resources to NFS pacemaker cluster
All,
I'm looking for some guidance on how to accomplish automating the addition of exports to an HA Pacemaker NFS cluster. I would like to do it in bash for logistics reasons.
The resource creation command looks like this:
However, I would like the script to be able to add multiple exports at one time and am trying to figure out the best way to do it. I have been playing around with arrays and can gather 2 of the necessary variables in the command, but there are 4 needed variables:
The rest of the command is pretty static.
Here is a small test script that gathers resource name and clientspec (and puts in order):
As you can see there is a problem with how to define 'directory' and 'fsid'.
Does anyone have any suggestions on how to accomplish this in bash? Any guidance is greatly appreciated.
Thank you for the reply. Actually, I believe I described the desired command output poorly. In the snippet I posted, the 'exports' array would define the resources that I'd want to define:
So the commands I'd want to run would be:
Notice the need to increment the 'fsid' based upon the exported directory (media=1, hotdrive=2, images=3). If a given directory is exported to multiple subnets, it will maintain the same 'fsid'.
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)
This User Gave Thanks to Chubler_XL For This Post:
Thanks again for the reply. The problem with this solution in my case is it loops through all drives and adds each of them to all subnets.
I need to be able to define individual drives for specific subnets. Not all the exports will need to be presented to all subnets. I.E.:
My use case is to add new exports (this is just one part of a larger script that also partitions drives, creates volume groups, logical volumes, etc) to the cluster for varying needs.
I'm still troubleshooting, the paired arrays look encouraging..
I have 2 VM's setup with a shared VMware disk running RHEL 7.1 (just updated to 7.2 with yum update), and would like to know what is the easiest Fence device to implement for testing purposes. Apparently, I need a fence device before my IP resources will come online.
I have the cluster... (1 Reply)
Hi Everybody,
I'm a newbie to shell scripting, and I'd appreciate some help. I have a bunch of .txt files that have some unwanted content. I want to remove lines 1-3 and 1028-1098.
#!/bin/bash
for '*.txt' in <path to folder>
do
sed '1,3 d' "$f";
sed '1028,1098 d' "$f";
done
I... (2 Replies)
I need a help of good people with effective bash script to mount nfs shared,
By the way I did the searches, since i haven't found that someone wrote a script like this in the past, I'm sure it will serve more people.
The scenario as follow:
An NFS Client with Daily CRON , running bash script... (4 Replies)
Hi All,
Need your help to resolve below error in cluter.
Sep 9 05:37:30 node2 rgmanager: Starting disabled service service:Prod_Service
Sep 9 05:37:30 node2 rgmanager: HA LVM: Improper setup detected
Sep 9 05:37:30 node2 rgmanager: * initrd image needs to be newer than lvm.conf... (3 Replies)
Hi, I have a bunch of media files in a directory that have been converted (from MTS to MOV format), so my directory contains something like this:
clip1.mts
clip1.mov
clip2.mts
clip2.mov
The problem is that the .mov files that have been created have the timestamps of the conversion task,... (2 Replies)
Hello, I am new to the whole "scripting" thing. Below is the script that I have so far and where i need the Variables to go (VAR#)
#!/bin/bash
#Sample Script
VAR1=
echo "Choose an option: 1) Create a file. 2) Delete a file. 3) Move a file."
read VAR1
case $VAR1 in
1)
echo "Pick... (4 Replies)
Hello
I have a directory structure with year in format 4 digits, e.g 2009, below which is month format 1 or 2 digits, e.g 1 or 12, blow which is day format 1 or 2 digits, e.g 1 or 31.
I want to change the names of lots of directories to the be
Year - 4 digits , e.g 2009 - No change here... (4 Replies)
hello,
During the cluster installation, we are required to enter a cluster name. When this name is used?
I have a shared disk between those 2 nodes. To test NFS failover, what should I do?
PS: I am using VCS 5
thanks (5 Replies)