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Stateful Snapshot for Splunk

Splunk AppInspect Passed
Admins: Please read about Splunk Enterprise 8.0 and the Python 2.7 end-of-life changes and impact on apps and upgradeshere.
Overview
Details
Stateful Snapshot for Splunk empowers Splunk administrators to capture Splunk's point-in-time state (such as configuration files and KVStore). These "snapshots" are automatically generated and retained for a period of time or up to a total disk usage (all of which is configurable).
This builds upon the practices espoused in http://docs.splunk.com/Documentation/Splunk/latest/Admin/Backupconfigurations

* Important *
See the Details tab for more specific instructions.

* Questions *
Select the "Ask a question" button (on the right) to post a question (tagged with this app).

Known Issues

  1. Secret items that might be required during restore are NOT backedup in this solution (lookups, secrets, keys, etc..)
  2. KVStore is not properly backed up in current implementation

Instructions

Prerequisites

  • Unix only. This is NOT Windows compatible.
  • Use of the git solution requires git to already be installed an initialized. See Git's Official Site for instructions, downloads, and support.
  • Needs $SPLUNK_HOME and $HOME to be defined as part of the unix profile

Planning Your Deployment

  1. This solution does NOT backup indexed data.
  2. Log records of the scripted inputs used by this solution are accessable with macros (diag_stateful_snapshot and git_stateful_snapshot) or directly by sourcetype stateful_snapshot:* through the Splunk Search UI.
  3. Identify which Splunk installations you'd like to collect snapshots from. This is where you will deploy the app to. Tip: Deploy to your source copy locations like a Deployment Server and at least one Search Head. Similarly, you may choose to deploy to your Deployer, Master Node, License Master, and Monitoring Console instances. The Stateful Snapshot for Splunk contains macro and sourcetype configuration that will ease usage when troubleshooting using a Splunk Search UI. Therefore, you may choose to deploy the app to Search Head(s) even with inputs disabled.
  4. Choose if you will use the Diag and/or GIT solution. Enabling the respective scripted input before deployment may be desireable.
  5. If desired, create a new index for the stateful_snapshot logs to be retained in. Be sure to update the respective stateful_snapshot inputs to this new index as well as the stateful_snapshot_index macro.
  6. Consider the desired frequency for snapshots. More frequent may require more disk space. Less frequent may introduce more risk of lost knowledge objects in a rapidly evolving Splunk deployment. See the interval attribute within the Scripted Input stanza of inputs.conf. The default is 86400 seconds, which is one a day.

Install

  1. Install the Stateful Snapshot for Splunk. Refer to the standard methods for Splunk Add-on installs as documented for a Single Server Install or a Distributed Environment Install.
  2. Enable either the Diag or GIT based inputs.

Configuration

There are some variables near the start of the scripts that you may choose to change. These are directly in the scripts and therefore not configurable through configuration files.

stateful_snapshot

  • time = datetime stamp used in the snapshot file names.
  • collect_folders = components of the diag to be collected thereby reducing the system's resource usage
  • maxsize = maximum storage volume consumed collectively by all snapshots. Measured in kb.
  • maxage = maximum age of snapshots. Measured in days.
  • backupDir = path where snapshots are kept

git_stateful_snapshot

  • git_path = location of splunk configuration

Questions

Select the "Ask a question" button (on the right) to post a question (tagged with this app).

Enjoy!

Release Notes

Version 1.0.1
Aug. 15, 2018

Minor fixes!

40
Installs
336
Downloads
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