Exporting Airflow connections from the CLI formatting - connection

Question

I'm trying to set up a connection.json file in my local directory, so every time I spin up airflow on my docker container, it loads these connections through entrypoint.sh, therefore mitigating me having to establish connections via UI or programmatically in DAG.
As per the airflow docs, this is the proper format.
{
"airflow_db": {
"conn_type": "mysql",
"host": "mysql",
"login": "root",
"password": "plainpassword",
"schema": "airflow",
"port": null,
"extra": null
},
"druid_broker_default": {
"conn_type": "druid",
"host": "druid-broker",
"login": null,
"password": null,
"schema": null,
"port": 8082,
"extra": "{\"endpoint\": \"druid/v2/sql\"}"
}
}
Is this default format for every conn type?
For example, I'm trying to set up an s3 connection, and a google cloud connection. Here are the parameters on the UI:
So would I set up this connection in the json like
{
"google_cloud_default": {
"conn_type": "google_cloud_platform",
"project_id": "sample-proj-id123",
"keyfile_path": null,
"keyfile_json": {sample_json},
"scopes": "sample_scope",
"number_of_retries": 5,
}
or like the format pertaining to the airflow docs, however I'd just nullify unnecessary values, and add in data like proj_id, key_file_json, scopes in the extra field?
Hope this makes sense?