name_prefix broken?

[rtoma]

The resource parameter name_prefix seem broken. I noticed this with aws.LogGroup. Haven't tested with other resources.

Actually this parameter is pretty pointless, since Pulumi does auto naming by default. Maybe just remove this parameter?

This is the code I use:

import pulumi_aws as aws

aws.cloudwatch.LogGroup('lg', name_prefix='pulumi-nameprefix-test')

This issue may be related to pulumi/pulumi-terraform#210 where it was mentioned but also marked as resolved. Regression?

Expected Behavior

Pulumi creates the log group with a name starting with the specified prefix. Just like auto naming when name_prefix is omitted.

Current Behavior

Fails with:

error: aws:cloudwatch/logGroup:LogGroup resource 'lg' has a problem: ConflictsWith: "name": conflicts with name_prefix

Even though I have not specified the name parameter. Only resource_name and name_prefix.

Steps to Reproduce

1. Use included snippet above
2. Pulumi up ftw

Context (Environment)

[lukehoban]

In pulumi/pulumi-aws#143 (comment), it was claimed that this should no longer happen. cc @pgavlin.

[tlinhart]

I've just encountered the exact same issue as described above.

[dferretti]

Same here, using the dotnet SDK for Pulumi 3.1.0, Pulumi.Aws 4.1.0. The Autoscaling.Group resource is breaking similarly for me using NamePrefix.

[dgivens]

Just a +1 with aws.autoscaling.Group in typescript SDK, Pulumi 3.4.0, AWS 4.7.0.

[schmurfy]

same with gcp.compute.InstanceTemplate: pulumi/pulumi-gcp#631
this currently prevent me from migrating from terraform to pulumi, even if pulumi does generate a random name I want to keep the current behaviour.

[iwahbe]

I just tested this with aws: 4.27.1 and pulumi 3.17.0. It seems to just work.

import pulumi_aws as aws
import pulumi
lg = aws.cloudwatch.LogGroup('lg', name_prefix='pulumi-nameprefix-test')
pulumi.export('name', lg.name)

Updating (dev)

View Live: https://app.pulumi.com/iwahbe/6155-repro/dev/updates/3

     Type                        Name            Status      
 +   pulumi:pulumi:Stack         6155-repro-dev  created     
 +   └─ aws:cloudwatch:LogGroup  lg              created     
 
Outputs:
    name: "pulumi-nameprefix-test20211110191147084700000001"

Resources:
    + 2 created

Duration: 5s

If this is still a problem for you, please reopen the issue.