The Microsoft Azure Linux Agent, similar to the Windows Agent, is the connection between the host and Azure Management. This small but important agent enables monitoring, password reset, patch management and much more via the Azure Portal. It is similar to the HyperV Integration Services or VMware Tools. They should be installed on-premise on the guest systems to get the best performance possible within the virtualization.
In the past, I noticed that systems that had an outdated version of the Microsoft Azure Linux Agent installed often had problems:
- incorrect status in the Azure portal
- problems updating Backup Agents
- Incorrect diagnostic data
It also happened that subsequent changes to the SWAP space or the login data were not carried out correctly. Therefore I recommend to update the Azure Linux Agent while patching the Linux system, which should be done regularly for security reasons anyway. Normally the updates come with the respective repository, but it would also be advisable to check the installed versions with the GitHub Seite des WALinuxAgent.
I noticed that in the last months there have been strong improvements in the integration of the agent. Probably there were some improvements in the backend which reduced the problems I mentioned above a bit 🙂