No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

It would be nice if you could get the debug logs for this failure - I’d be able to reconstruct what’s going on with HTTP dumps in it

Ok, so looks like the origional error is actually the same as above, another operation in progress, which I believe is because I am trying to create 2 subnets, the second is trying to create whilst the first is still in progress, so either the first subnet is returning too early, or it's trying to run both in parallel. The subnets are created inside a foreach loop so I would expect them to create in serial

This is the error
`error: autorest/azure: Service returned an error. Status=&lt;nil&gt; Code="AnotherOperationInProgress" Message="Another operation on this or dependent resource is in progress. To retrieve status of the operation use uri: <https://management.azure.com/subscriptions/892b688f-5e61-4b53-9091-e0ed72aef7a8/providers/Microsoft.Network/locations/westeurope/operations/8056aab9-8e85-4845-a8b2-069bca1f3240?api-version=2020-11-01>." Details=[]`

&gt;  The subnets are created inside a foreach loop so I would expect them to create in serial
For loop does not ensure serial execution. Your complete Pulumi program runs and then the provider deploys resources as soon as possible based on dependencies, not on the order in code.

Maybe we should retry those “AnotherOperationInProgress” errors? Or could that be wrong in some cases?

I think they would be worth retrying with a set timeout, as it usually means something else is working with the resource at that time. Any way to ensure it runs serially for these specific resources, can't really do a depends on given it is dynamically generating subnets

I guess you could build an array in the loop, add each subnet to it as you go, and pass it as depends on to the next one?

Doing that seems to have sorted it, but I think it would be a good idea to retry that error

Could you open an issue for that? Ideally, attach a repro of your use case. Thank you!

<https://github.com/pulumi/pulumi-azure-native/issues/903>