Failed to authenticate using azure auth

[tonicmuroq]

Our enterprise vault was upgraded from 1.16.10 to 1.18.1, then azure authentication was broken. The log says

invalid vm name "aks-agentpool-xxx-vmss_0"

then I checked the node names, they should be aks-agentpool-xxx-vmss000000, then I checked the result from azure metadata API, the field compute.name is aks-agentpool-xxx-vmss_0, but compute.osProfile.computerName is aks-agentpool-xxx-vmss000000, I'm not sure what happened here, maybe azure / vault changed the way to authenticate?

Tried to upgrade vault lib to the latest version, and didn't work.

I forked a repo and did tiny changes then everything works well, check tonicmuroq@587e961 , not sure if this is the correct way. How could I fix this issue gracefully?

[neodejack]

seems like the name validation regex is fixed in the underlying dependency vault-plugin-auth-azure v0.19.2: hashicorp/vault-plugin-auth-azure#172

[stevendpclark]

Hi @tonicmuroq,

I believe that @neodejack is correct, the plugin version v0.19.2 was updated within Vault in #28848, so it should be out in the next minor release of Vault coming shortly.

With that I'll close out this issue, please feel free to re-open it if Vault 1.18.2 doesn't resolve the issue when it is released.