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ac89live
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Apr 30, 2025

Azure Virtual Machine Scale Set (VMSS) with F5 LTM

Hi

So basically we have F5 in azure and worked perfect with pools that have only one pool member.

And now we are about to enable azure scale set (auto scaling) of virtual machines (IIS servers) , and these VMs in the VMSS needed to be added / removed automatically to / from the F5 LTM pool.

How could I solve this issue?

What I am basically asking, is how can I fully automate adding / removing pool members according to VMSS ?

Is there a script to be installed in F5 that does this automatically?

Thanks

2 Replies

  • Hello, 

    I see your post has been up for some time with no responses. If you have found a solution I would like to encourage you to update your post with the details for future users. However, if not then I did some searching through our knowledge base and was able to find article K000137953: Automate updating IP address of BIG-IP poolmember that may put you on the path to a solution. Beyond our knowledge articles if you have additional question and support on your device please create a case with our support team. 

    -Melissa 

  • Hi and thank you for your reply.

    It was on purpose that I haven't reply on this post.

    + We found no build in F5 solution for automating LTM with azure scaleset (auto scaling)

    + We found no supported solution by F5 TAC (including those scripts or iApps solutions, or even the AC3)

    + We opened F5 support case and unfortunately there was no much helpful information (putting aside the fact that it took them a week to response)

    + There a lot of talking about this but no actual simple solution. Again, keep it simple solution, and not liek this:

    https://community.f5.com/kb/technicalarticles/cloud-scaling-without-native-cloud-scaling/282405

    So we contacted Microsoft support team and we found a buildin NLB that does the job perfect with scaleset (VMSS)

    And currently we are using F5 only as an AWAF