Parametrizing with different remote states causes unexpected issues

[kaisellgren]

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cdktf & Language Versions

Terraform v0.12.29

• provider.google v3.30.0

"cdktf": "0.0.17",
"constructs": "^3.0.4"
"cdktf-cli": "0.0.17",

Affected Resource(s)

Debug Output

Expected Behavior

diff & deploy should work normally.

Actual Behavior

Sometimes cdktf hangs forever at initializing <name>... and sometimes I get:

⠹ initializing builds...
⠙ initializing builds...

2020/09/26 18:34:39 [TRACE] backendMigrateState: both source and destination workspaces have states, so might overwrite destination with source

Error: error asking for state migration action: input disabled

non-zero exit code 1

And sometimes different states get entangled so that diffing a dev environment will want to destroy staging and prod resources.

Steps to Reproduce

I am using env variables to parametrize cdktf. I have ENV set to dev/staging/prod. Each env specifies a diff remote state:

    new GcsBackend(this, {
      bucket: 'terraform-state',
      prefix: `app-${process.env.ENV}`,
    })

I also have two stacks: app and builds stacks. They both have the same env specific parameters, and builds stack has this:

    new GcsBackend(this, {
      bucket: 'terraform-state',
      prefix: `builds-${process.env.ENV}`,
    })

If I run cdktf diff or cdktf deploy, it either hangs forever, produces the error shown earlier or shows wrong diff results (wanting to delete resources of other environments).

The only way to make it work is to do rm -rf cdktf.out. If I always delete the out folder then it works so it has to do with its existence. This also seems to be universal across every type of resource. Right now my script just runs rm -rf cdktf.out and it works well that way.

Important Factoids

References

• #0000

[skorfmann]

Sounds similar to what's described in this comment #376 (comment)

[DanielMSchmidt]

I think this is the same as #398; I could not reproduce that one, if it's fundamentally different please let me know and I'll see if this is still an issue 👍

[github-actions]

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