Allow retrieving and updating database cluster configuration

[jnoordsij]

What is the problem this feature would solve? Please describe.

In the DO API docs, I found that it is possible to retrieve database cluster configuration and also to update it. However, using the API directly is somewhat cumbersome.

Describe the solution you'd like
It would be great to have a doctl to do this, e.g. doctl databases configuration get <database-id>. The output would probably be JSON, or maybe could be formatted with a flag. For setting the input should probably also be JSON?

[aswath-s-tw]

Would like to pick this up. Please assign !

[aswath-s-tw]

Hi, I have a few queries

The godo.Client.DatabaseService has methods to get configuration for a particular engine ex. GetPostgreSQLConfig, GetRedisConfig, GetMySQLConfig, should we make our cli commands specific to an engine or call Get to know the EngineSlug and call the corresponding config method accrodingly ?

I think the same question applies of updating the config as well.

Thanks !

[aswath-s-tw]

Ping ! @danaelhe @jnoordsij

[danaelhe]

That's a great question! We're thinking to pass in an --engine flag as such:
doctl databases configuration get --engine postgress <db-id>

For update the config, to avoid having to pass in a lot of flags, it would be better to just accept JSON.

[aswath-s-tw]

Thought of raising separate PRs for each subcommand. Will be doing it from this account -> https://github.com/titanventura

[danaelhe]

Partially solved in #1430 by adding implemmentation for doctl databases configuration get