Add server ca attribute to google_redis_cluster

[lennykean]

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Description

Redis cluster resources should provide a computed attribute for server_ca_certs similar to redis instance resources, which is available in the Memorystore REST API

New or Affected Resource(s)

• google_redis_cluster

Potential Terraform Configuration

References

https://cloud.google.com/memorystore/docs/cluster/reference/rest/v1/projects.locations.clusters/getCertificateAuthority

b/337873086

[rileykarson]

Note: We added this to the google_redis_instance resource directly, but got feedback that some users would have preferred it be added separately, to avoid having secrets in state in the general case. We could consider using that approach here, using a datasource instead.

[lennykean]

I'm not sure why the ca certs would be secrets. As far as I know, they don't expose the private keys

[pprommer]

I'm not sure why the ca certs would be secrets. As far as I know, they don't expose the private keys

I agree. There are no secrets involved here as the private keys are not exposed.

Note: We added this to the google_redis_instance resource directly, but got feedback that some users would have preferred it be added separately, to avoid having secrets in state in the general case. We could consider using that approach here, using a datasource instead.

Having a data source to retrieve information about the cluster would be great since I'm sure it would be useful, but if the google_redis_cluster resource just returned the outputs required like google_redis_instance does then that you get everything you need without having to do another step. Consistency is king.

[rileykarson]

Cool- overabundance of caution on my part it seems, thanks for the input, folks!

[imrannayer]

This will resolve terraform-google-modules/terraform-google-memorystore#209