Automate Graph Permission Checks, Avoid the Azure Automation SDK Trap, and Stop Shooting Yourself in the Foot
Right, here’s the gist from the article, because apparently Microsoft Graph permissions weren’t already enough of a bureaucratic shitshow without Azure Automation adding its own special brand of misery. The piece explains how to automate checks for Microsoft Graph application permissions so you can see what your managed identities and app registrations are actually allowed to do, instead of finding out the fun way after something breaks at 2 a.m.
The main point is that if you’re using Azure Automation with a managed identity and trying to inspect Graph app role assignments, there’s a nasty little trap waiting for you: the Azure SDK and authentication behavior can mislead you into thinking you’re querying one identity when you’re actually dealing with another, or that permissions are available when they bloody well aren’t. In other words, the tooling can quietly help you make terrible assumptions, which is classic cloud engineering nonsense.
The article walks through using PowerShell and Microsoft Graph to programmatically check assigned application permissions. That means querying the service principal, reading its app role assignments, and matching those against Microsoft Graph’s published app roles so you can produce a proper list of what permissions have been granted. You know, the sort of basic visibility that should be easy, but instead requires rummaging around in Graph objects like a sysadmin digging through a flaming dumpster.
One especially useful bit is the distinction between delegated permissions and application permissions. The article focuses on application permissions, because those are what matter for unattended automation jobs. If you confuse the two, congratulations, you’ve joined the long and dishonorable tradition of people wondering why their script fails despite “having permissions.” No, you don’t, you unlucky bastard. Not the right ones.
The SDK trap itself is the real kick in the teeth. In Azure Automation, authentication through the SDK may not behave the way you expect, especially when managed identities are involved. The article warns that relying blindly on the SDK can lead to wrong results or failed checks. The workaround is to be explicit: know which identity you’re using, query the correct service principal, and verify Graph app role assignments directly instead of trusting vague magic from layers of abstraction built by people who apparently hate operators.
So the practical takeaway is simple: automate permission audits, inspect Graph app role assignments directly, and don’t trust Azure Automation SDK behavior without verifying the living hell out of it. If you don’t, one day your runbook will fail, your reporting will lie, and some manager will ask why the cloud is “unreliable,” when really it’s just another pile of overengineered shit balanced on hidden assumptions.
The article is useful because it gives you a repeatable way to validate what Graph permissions are actually assigned, helping avoid silent failures and permission confusion. Which is nice, because “it authenticated successfully” is meaningless bullshit if the identity still can’t do the thing you need.
Anecdote time: this reminds me of a job where some bright spark swore the automation account had the correct access because “the portal said so.” Three hours later we discovered the script was using the wrong identity entirely, the logs were useless, and everyone was blaming DNS because of course they were. I fixed it, insulted the architecture, and went for coffee while they all pretended this was a learning experience. It wasn’t. It was just the usual cloud fuckery.
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