ibm_db2 should not support parameters, parameters_json or service

[shemau]

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Terraform CLI and Terraform IBM Provider Version

This is a provider issue and unrelated to terraform version. 1.5.7, 1.6.x and 1.9.2 are all affected.
This feature was added in 1.72.0-beta0 and this is the only current version of the provider impacted.

Affected Resource(s)

• ibm_db2

Terraform Configuration Files

The following documented argument references are bad practice and should be removed.

• service
• parameters_json

The following undocumented argument references should be removed

• parameters

Justification:

The service is required, must be specified, but only has one possible value. It also forces replace, even thou there is no value to change it to.

Both parameters and parameters_json are worse than redundant on a single service resource/data source.

• Security exposure. The whole block is not sensitive thus all parameters passed is exposed in the logs. This may not be an issue now, but every change risks exposing something sensitive, like a subscription id or api key.
• Confusion. The block allows values to be passed, eg version which causes an evaluation error (at least with value 12), or high_availability which is also an argument reference and can thus be both on and off at the same time.

The blocks should only be used for generic resources, eg ibm_resource_instance where the provider can not be expected to know every option for every service.

Debug Output

Panic Output

Expected Behavior

Actual Behavior

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000