Automating qual_devices updates

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#!/bin/bash

TMPDIR="$( mktemp -d )"
KEY_FILE="/root/.ssh/netapp.dsa"
SSH_OPTS="/root/.ssh/netapp-ssh_config"
FAS_CTRL=$1
QUALDEVICES=$2

ssh_fas() {
  # $@: commands for Data ONTAP
  COMMANDS="$@"
  /usr/bin/ssh -i $KEY_FILE -l root -F $SSH_OPTS $COMMANDS
}
#set -x

echo "Updating qual_devices on $FAS_CTRL"

# Enable ftpd if it isn't enabled already
echo -n "Checking FTP subsystem"

FTPD_INITIAL_STATE="$( ssh_fas $FAS_CTRL options ftpd.enable |
  awk '{ print $2 }' )"
if [ $FTPD_INITIAL_STATE == "off" ] ; then
  ssh_fas $FAS_CTRL options ftpd.enable on
  echo "   .... ok"
else
  echo "   .... ok"
fi

echo
read -s -p "Please supply the root password for $FAS_CTRL: "
ROOT_PASSWD=$REPLY

echo
echo "Checking qual_devices:"
echo -n "     Running: "
mkdir $TMPDIR/fas-version
# Check the old version.
ftp -n $FAS_CTRL >/dev/null <<END_SCRIPT
prompt
user root $ROOT_PASSWD
lcd $TMPDIR/fas-version
cd /etc
mget qual_devices*
quit
END_SCRIPT

FAS_VERSION="$( grep Datecode $TMPDIR/fas-version/qual_devices_v3 |
  head -n1 | cut -d  -f3 )"

echo "$FAS_VERSION"
# Unzip the qual_devices.zip file and compare it.
ORIGPWD=$PWD
mkdir $TMPDIR/new-version
cd $TMPDIR/new-version
unzip $QUALDEVICES >/dev/null
echo -n "         New: "
NEW_VERSION="$( grep Datecode $TMPDIR/new-version/qual_devices_v3 |
  head -n1 | cut -d  -f3 )"
echo "$NEW_VERSION"
echo

# Upload the supplied version if the new file doesn't match the one running
# on the controller
if [ $NEW_VERSION != $FAS_VERSION ] ; then
  echo "Uploading qual_devices to $FAS_CTRL"
  ftp -n $FAS_CTRL >/dev/null <<END_SCRIPT
prompt
user root $ROOT_PASSWD
lcd $TMPDIR/new-version
cd /etc
mput qual_devices*
quit
END_SCRIPT

  # Send an asup message, that the issue is corrected
  echo "Generating AutoSupport message"
  ssh_fas $FAS_CTRL options autosupport.doit qual_devices_fixed_$NEW_VERSION
fi

#set +x

# Enable ftpd
if [ $FTPD_INITIAL_STATE == "off" ] ; then
  ssh_fas $FAS_CTRL options ftpd.enable off
fi

rm -r $TMPDIR