How do I create a bash script that will run tmos commands and output the results to a file that can be sent to another server via sftp?

This is actually pretty straight forward. Take a look at the example BASH script monitor at /config/monitors/sample_monitor. This is an example of taking arguments from the GUI monitor (the node and IP), performing some action, and then reporting back ("up" or nothing). If you don't care about monitoring server nodes in your script, then you can just create a BASH script to do what you want it do. You'll use TMSH to get/set whatever you need from the running configuration and an SFTP client is on the box. If you create your script as a monitor and assign it to a "dummy" pool, the BIG-IP will do the job of scheduling it. If you can be more specific with your request we can potentially help you write that script.

All I really want to do is output the data from the tmos command 'show sys performance' to a file, then send that file to a server for parsing and displaying. I can't seem to find a way to enter tmsh from a bash script and then run the command... Thank You, Dave

tmsh -q show sys performance that will run the command with paging disabled. You could write the output to a temp file and then sftp the file to a remote host. I was hoping you could just pipe that to sftp, but it doesn't look like sftp supports reading from a pipe: http://serverfault.com/questions/400203/how-to-pipe-data-to-sftp-connection Aaron

Thank you. -just what I'm looking for. Dave

hi Dave,was this successfull from your side? are you able to get show sys performance to file then send that file to a server for parsing and displaying?

create script in bash that has tmos commands

10 Replies

Kevin_Stewart
Employee
Apr 29, 2013
This is actually pretty straight forward. Take a look at the example BASH script monitor at /config/monitors/sample_monitor. This is an example of taking arguments from the GUI monitor (the node and IP), performing some action, and then reporting back ("up" or nothing). If you don't care about monitoring server nodes in your script, then you can just create a BASH script to do what you want it do. You'll use TMSH to get/set whatever you need from the running configuration and an SFTP client is on the box. If you create your script as a monitor and assign it to a "dummy" pool, the BIG-IP will do the job of scheduling it.

If you can be more specific with your request we can potentially help you write that script.
Dave_Mehlberg
Cirrus
Apr 29, 2013
All I really want to do is output the data from the tmos command 'show sys performance' to a file, then send that file to a server for parsing and displaying.

I can't seem to find a way to enter tmsh from a bash script and then run the command...

Thank You,

Dave
hoolio
Cirrostratus
Apr 29, 2013
tmsh -q show sys performance

that will run the command with paging disabled. You could write the output to a temp file and then sftp the file to a remote host.

I was hoping you could just pipe that to sftp, but it doesn't look like sftp supports reading from a pipe:

http://serverfault.com/questions/400203/how-to-pipe-data-to-sftp-connection

Aaron
Dave_Mehlberg
Cirrus
Apr 30, 2013
Thank you. -just what I'm looking for.

Dave
Srini_87152
Cirrostratus
Jan 28, 2015
hi Dave,was this successfull from your side? are you able to get show sys performance to file then send that file to a server for parsing and displaying?

StephanManthey

Nacreous

Jan 28, 2015

Hi,

recently I had to use SFTP to store a scheduled backup to a remote server via SFTP.

The script is continuously executed via cron.

Two things to consider:

1. cron settings are not stored in .ucs archive (will not be saved / migrated) 2. known hosts are not stored in .ucs archive (will not be saved / migrated)

That´s why an additional script is used to update cron and known hosts (pls let me know, if this is required as well).

Regarding the script below:

SFTP uses a batch file which is dynamically created each time the script runs. It relies on exporting the own SSH public key to the remote destination. Make sure key based authentication via SSH works for root before running the script.

! /bin/bash

 save current configuration to /shared/backup/ directory
 ( /shared/backup/ needs to be created in advance )
 sftp archive to remote server
 delete archives older 7 days
 log archive removal to /var/log/ucsdelete
 copy script to /shared/autobackup.sh
 make script executable
   chmod 775 /shared/autobackup.sh
 modify cron (crontab -e) to save config i.e. two times per day
   5 */12 * * * /shared/autobackup.sh

time=`date +%Y%m%d_%H%M`
unit=`echo "$HOSTNAME" | awk -F '.' '{print $1}'`
tmsh save /sys ucs /shared/backup/autoarchive_${unit}_${time}.ucs
cat > /shared/backup/sftpbatch << EOF
put /shared/backup/autoarchive_${unit}_${time}.ucs /remote/backup/autoarchive_${unit}_${time}.ucs
EOF
if sftp -b /shared/backup/sftpbatch root@10.200.200.172
then
  logger -p local0.notice "0108500:5: Remote config backup success for file /shared/backup/autoarchive_${unit}_${time}.ucs"
else
  logger -p local0.warning "0108500:4: Remote config backup failed for file /shared/backup/autoarchive_${unit}_${time}.ucs"
fi
find /shared/backup/ -name "autoarchive*" -mtime +7 -ls >> /var/log/ucsdelete
find /shared/backup/ -name "autoarchive*" -mtime +7 -ls -exec rm -f {} \;

Thanks, Stephan

ogozar_275571
Nimbostratus
Sep 12, 2017
Hello,

Hello, when I generate an automatic backup it shows me this error when I execute the script:

Error, invalid characters in UCS file name. The dash, period, forward-slash, plus sign, and underscore are the only special characters allowed.

What is the problem?

Thank's
- Stanislas_Piro2
  Cumulonimbus
  Sep 12, 2017
  Hi,
  
  Please provide the backup script you use!
  
  The only answer I can give with provided info is:
  
  The dash, period, forward-slash, plus sign, and underscore are the only special characters allowed.
- ogozar_275571
  Nimbostratus
  Sep 13, 2017
  !/bin/bash
  DATE=
  date "+_%d_%m_%y"
  echo getHostName=$HOSTNAME tmsh save sys ucs $HOSTNAME$DATE cd /var/local/ucs/ ftp -n 192.168.1.2 <
  The test was run in version 12.1.2 build 0.0.249 and there were no problems. But the tests were performed in a cluster with version 12.0.0 bluid 0.0.606 and showed the error mentioned.
  
  Simplify the script to only: "tmsh save sys ucs backup_test" and showed the same error.
- ogozar_275571
  Nimbostratus
  Sep 13, 2017
  I was able to determine what the problem was. Thank you.