Lost connection to ACI delegated subnet
Hi All,
We recently had an issue where our application subnet could no longer communicate with the ACI delegated subnet.
Application subnet == private-vm (10.1.3.0)
ACI subnet == private-aci (10.1.2.0)
The application was working fine, but we lost access to the ACI subnet for no apparent reason. This caused the app to retry connections to the ACI object which would fail.
Restarting the ACI object didn't resolve the issue, and we observed this problem across two different (but similar) resource groups.
I then made a change to the private-aci subnet and removed the nat gateway. This caused the vnet to reprovision. Once that succeeded, the network connectivity between the two subnets started working.
Running diagnostics on the vnet showed some changes to the delegation service during the reprovisioning process as follows:-
Old == delegations/ACIDelegationService"
New == delegations/Microsoft.ContainerInstance.containerGroups"
Does anyone know whether this would have caused the connectivity issues? If so - why?
TIA!