Zfssa list snapshots script

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title: 'ZFSSA List Snapshots Script'
date: '2014-12-20T07:05:40-06:00'
status: publish
permalink: /zfssa-list-snapshots-script
author: admin
excerpt: ''
type: post
id: 783
category:
    - Bash
    - ZFS
tag: []
post_format: []

Quick script to illustrate interacting with the ZFS Storage Appliance. In this example I am listing ZFSSA snapshots containing a search string. Note I edited this for the article without re-testing it still works.

#!/bin/sh

Usage() {
 echo "$1 -u <Appliance user> -h <appliance> -j <project> -p <pool> -s <containsString>"
 exit 1
}

PROG=$0
while getopts u:h:s:j:p flag
do
  case "$flag" in
  p) pool="$OPTARG";;
  j) project="$OPTARG";;
  s) string="$OPTARG";;
  u) user="$OPTARG";;
  h) appliance="$OPTARG";;
  \?) Usage $PROG ;;
  esac
done

[ -z "$pool" -o -z "$project" -o -z "$appliance" -o -z "$user" ] && Usage $PROG

ssh -T $user@$appliance << EOF
script
var MyArguments = {
  pool: '$pool',
  project: '$project',
  string: '$string'
}

function ListSnapshotsbyS (Arg) {
  run('cd /');                          // Make sure we are at root child context level
  run('shares');
  try {
      run('set pool=' + Arg.pool);
  } catch (err) {
      printf ('ERROR: %s\n',err);
      return (err);
  }

  var allSnaps=[];
  try {
      run('select ' + Arg.project + ' snapshots');
      snapshots=list();
      for(i=0; i < snapshots.length; i++) {
          allSnaps.push(snapshots[i]);
      }
        run('done');
  } catch (err) {
      printf ('ERROR: %s\n',err);
            return(err);
  }

  for(i=0; i < allSnaps.length; i++) {
   if (Arg.string !="") {
    var idx=allSnaps[i].indexOf(Arg.string);
    if (idx>0) {
      printf('#%i: %s contained search string %s \n',i,allSnaps[i], Arg.string);
    }
   } else {
      printf('#%i: %s \n',i,allSnaps[i]);
   }
  }
  return(0);
}
ListSnapshotsbyS(MyArguments);
.
EOF