Fetch labels for bigquery dataset/table

[rahmatrhd]

Summary
BigQuery dataset/table has some metadata that hasn't been fetched into guardian resource details. We want to fetch them and store them in the resource details for some use case such as determining the dataset/table owner and pii flag

Proposed solution
add metadata field within details:

// resource
{
  "id": "",
  ...
  "details": {
+    "metadata": {
+      "labels": {
+        "key": "value"
+      },
+.     "other_metadata": ""
+    }
  }
}

Other requirements:

• In the updateResource API, metadata field should not be updateable by the user. It only can be updated from FetchResource

[bsushmith]

@rahmatrhd couple of questions on this -

1. Will this fetch all labels for a bigquery dataset/table or only specific configurable labels only?
2. Is this specific to only bigquery resources?

[rahmatrhd]

@bsushmith

1. It should fetch all labels (no configuration needed)
2. For this, I'm setting the scope only for bq resources. If we later need to add metadata for other provider resources, maybe having a dedicated metadata column would be better