[FEATURE] Provider should take configuration from the CLI config (~/.civo.json)

[fernando-villalba]

Description

Issue

When the CLI is configured with a token, terraform should automatically take the token config from the cli config file at from ~/.civo.json

Alternatively (or preferentially) it can be taken from the environment variable as it is possible to do now.

We should dissuade users from providing credentials via an input variable. These should be strictly reserved for short lived tokens which we don’t have now.

Acceptance Criteria

• By default, when no token input or token environment variable is provided, it should be fetch the credentials from the CLI at path ~/.civo.json
• We should not have a token input, the token should never be entered as variable or input that gets saved on state. Instead change this to credentials_file or something like that where the user can specify the location of a file with the token.
• The priority of configuration should be the following Environment variable --> credentials file path configured in input --> CLI config path

Screenshots

No response

Additional information

No response

[Praveen005]

Proposed Approach for #246:

Hi Team,

I have been working on the feature request outlined in issue #246. I kindly request your review and feedback.

Here is what I have done:

1. Removed the civo_token field from the provider schema and replaced it with a credential_file option.

2. Implemented a priority-based token retrieval:
   1. Environment variable (CIVO_TOKEN).
   2. Token provided via a Credential file.
   3. Lastly, fall back to CLI config file (~/.civo.json)

3. Added a getToken function to handle the token retrieval logic.

4. Implemented readTokenFromFile to securely read tokens from JSON files.

5. One additional thing that I have added is, the user can set the Credential file path in CIVO_CREDENTIAL_FILE environment variable as well. For this I took inspiration from here

6. Updated and expanded test cases to cover:
   1. Reading token from environment variable
   2. Reading token from a specified credentials file
   3. Falling back to the CLI config file

7. Updated the example in provider.tf to use the new credential_file option instead of civo_token.

The concerned code can be found in the gist here.

Screenshots:

It passes all the tests:

Test Coverage:

Thank you for your time and feedback.

Best regards,

Praveen

[uzaxirr]

Hey @Praveen005
Thank you for your amazing diagnosis, this approach looks fine to me can you go ahead and raise a PR.
Please do test it locally and attach Screenshots in the PR

[uzaxirr]

Closed via: #248