Das factory not include gcs option

[incubator4]

Describe the bug
This is a bug about PR #2643
I've tried self build master image and use gcs as storage backend, it says At least one of --data-availability.(local-db-storage|local-file-storage|s3-storage) must be enabled.
Due to

nitro/das/factory.go

Lines 170 to 175 in b4e27fc

	if !config.LocalDBStorage.Enable &&
	!config.LocalFileStorage.Enable &&
	!config.S3Storage.Enable {
	return nil, nil, nil, nil, nil, errors.New("At least one of --data-availability.(local-db-storage|local-file-storage|s3-storage) must be enabled.")
	}
	// Done checking config requirements

GCS Storage should be append into this check
To Reproduce
The latest nitro das with only gcs enable

[incubator4]

additional issue, das pod start after both set local and gcs storage, but got error with
{"t":"2024-11-05T10:41:27.834042508Z","lvl":"warn","msg":"Served das_healthCheck","conn":"127.0.0.1:47812","reqid":"0","duration":"10.800134ms","err":"could not check permissions: googleapi: Error 400: Invalid argument., invalid"}

it might be something issue with

nitro/das/google_cloud_storage_service.go

Lines 194 to 197 in b4e27fc

	perms, err := bucket.IAM().TestPermissions(ctx, permissions)
	if err != nil {
	return fmt.Errorf("could not check permissions: %w", err)
	}

[joshuacolvin0]

You are welcome to open a PR to fix these issues, but we don't directly support GCS at this time.

[incubator4]

You are welcome to open a PR to fix these issues, but we don't directly support GCS at this time.

I'd like to create PR after the custoimze image which I modifty to support GCS running for a while.
at the mean time, should s3 backend support custom endpoints to support minio, cloudflare d2 or anyother object storage which support s3 protocol?

[joshuacolvin0]

we have not tested minio, etc. but you are free to do your own testing and submit PRs if fixes are needed