Splunk upgrade script

This is a simple upgrade script for Splunk on Linux x64.

It will download the latest Splunk version, generate a diag then proceed to the upgrade while writing the output to the console as well as in a log file.

Prerequisites

To use this script to upgrade a Splunk instance, please consider the prerequisites below.

Make sure the script match your environment/package

It is dedicated to Linux x64 tgz.

Make sure wget is installed

Wget is used to download Splunk latest version.

Make sure path to ${SPLUNK_HOME}/bin has been added to your bash profile

As the script uses splunk commands, path to ${PSLUNK_HOME}/bin must be added.

One can either use :

  {
    echo "export PS1='\[\033[1;32m\]\$(whoami)@\$(hostname): \[\033[0;37m\]\$(pwd)\$ \[\033[0m\]'"
    echo "export SPLUNK_HOME=\"/opt/splunk\""
    echo "export PATH=\${SPLUNK_HOME}/bin:\${PATH}"
    echo ". \${SPLUNK_HOME}/share/splunk/cli-command-completion.sh"
  } >> /etc/bashrc

or refer to: https://docs.splunk.com/Documentation/CoE/ssf/Handbook/UnixProfile#Add_Splunk_to_PATH

Make sure Splunk website can be reached from your Splunk instance

The package will be retrieved from splunk.com.

Use the script

Copy the script to the target system, make it executable and run it.

Logging

The output is logged in splunk-simple-upgrade.sh.log.

Splunk diag

A light Splunk diag is generated in /opt/splunk directory.