BIGdiff

Problem this snippet solves:

This is a bash script to help when doing changes to F5 devices.

The script will collect the status of the objects before and after the change, compare them and produce an HTML file with the results.

Examples of objects are LTM virtual servers and GTM wide IPs.

The script will also create the files you will need in case things go wrong (UCS/QKView/Logs).

The most common scenario to use the script will be an upgrade.

You run the script before the upgrade, upgrade the device, and run the script again.

The HTML file will give you the results, and it will indicate if something went down after the upgrade.

You can also use the script when copying the configuration from one device to another (configuration migration).

Also, consolidation, when copying the configuration from multiple devices to a single device.

Lastly, you can use the script in any scenario where you think that could be an impact on the F5 device.

Let’s assume you are doing major routing changes to your network, and there is a possibility things go down on the F5 devices.

You can run the script before those changes, perform the changes, and run the script again.

The HTML file will give you the results, and it will indicate if something changed after you performed the change.

Important Note: If you have a high availability (HA) pair or a device group with more than 2 devices, each device performs monitoring independently. This means you need to run the script on each device.

How to use this snippet:

See the instructions on GitHub:

https://github.com/leonardobdes/BIGdiff