GKE Nodepool adding tags should not recreate

[Evesy]

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Affected Resource(s)

• google_container_node_pool

Previous issue: https://github.com/hashicorp/terraform-provider-google/issues/2532

The GKE API supports updating tags on an existing node pool; an operation is kicked off which adds network tags to all the existing node pools, similar to a version upgrade operation.

Currently, modifying tags on the google_container_node_pool resource causes it to be deleted & recreated. It feels like this behaviour should be changed to support the inline updating of existing node pools

[edwardmedia]

Looks like tags and labels are updatable now

https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1beta1/projects.locations.clusters.nodePools/update

Change label to enhancement

[g-awmalik]

This also applies to labels also reported here. Seems like there is a PR but needs to account for labels as well.

[g-awmalik]

@edwardmedia - would you like us to create another issue for label or can we track it here?

[edwardmedia]

@g-awmalik we can track labels over here. Let me update the subject

[LucaPrete]

Hello, here is the initial PR (under review) that allows to update nodepool labels without causing the nodepools to be re-created.

[korenlev]

If the node_pool is configured with auto scaling enabled then Update any metadata in node pool will FAIL with the following google error:

"Updates for 'labels' are not supported in node pools with autoscaling enabled (as a workaround, consider temporarily disabling autoscaling or recreating the node pool with the updated values.)"

You can publish this error back to the user, so he can decide to use this temp workaround by google or not. You can validate this with upstream (the relationship with auto scaling property).

[michaelbannister]

According to this doc since GKE 1.23.4-gke.300 nodepool labels may be modified in-place even if cluster auotscaler is enabled.

[michaelbannister]

Ah, just found this was released in provider version 4.48.0 (changelog)– should this issue be closed?

[rileykarson]

Labels are possible, but network tags are not. I'll update the issue. It does seem possible to update them: https://cloud.google.com/kubernetes-engine/docs/how-to/autopilot-network-tags#standard_1

[melinath]

I believe this was resolved by https://github.com/GoogleCloudPlatform/magic-modules/pull/6599 - even though the title of the PR (and the release note) talk about labels, the actual implementation seems to add support for updating network tags.

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