datacatalog-custom-entries-manager

A Python package intended to manage Google Cloud Data Catalog custom entries, loading metadata from external sources. Currently supports the CSV and JSON file formats.

It is built on top of GoogleCloudPlatform/datacatalog-connectors and, differently from the existing connectors, allows ingesting metadata with no need to connect to other systems than Data Catalog. Known use cases include validating Custom Entries ingestion workloads before coding their specific features and loading metadata into development / PoC environments.

In case you need not only Entries but also Tags to validate your model/workload, consider giving datacatalog-custom-model-manager a try.

Table of Contents

• 1. Environment setup
  • 1.1. Python + virtualenv
    • 1.1.1. Install Python 3.6+
    • 1.1.2. Create a folder
    • 1.1.3. Create and activate an isolated Python environment
    • 1.1.4. Install the package
  • 1.2. Docker
    • 1.2.1. Get the source code
  • 1.3. Auth credentials
    • 1.3.1. Create a service account and grant it below roles
    • 1.3.2. Download a JSON key and save it as
    • 1.3.3. Set the environment variables
• 2. Manage Custom Entries
  • 2.1. Synchronize
    • 2.1.1. To a CSV file
    • 2.1.2. To a JSON file

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1. Environment setup

1.1. Python + virtualenv

Using virtualenv is optional, but strongly recommended unless you use Docker.

1.1.1. Install Python 3.6+

1.1.2. Create a folder

This is recommended so all related stuff will reside at the same place, making it easier to follow below instructions.

mkdir ./datacatalog-custom-entries-manager
cd ./datacatalog-custom-entries-manager

All paths starting with ./ in the next steps are relative to the datacatalog-custom-entries-manager folder.

1.1.3. Create and activate an isolated Python environment

pip install --upgrade virtualenv
python3 -m virtualenv --python python3 env
source ./env/bin/activate

1.1.4. Install the package

pip install --upgrade datacatalog-custom-entries-manager

1.2. Docker

Docker may be used as an alternative to run datacatalog-custom-entries-manager. In this case, please disregard the above virtualenv setup instructions.

1.2.1. Get the source code

git clone https://github.com/ricardolsmendes/datacatalog-custom-entries-manager
cd ./datacatalog-custom-entries-manager

1.3. Auth credentials

1.3.1. Create a service account and grant it below roles

• DataCatalog entryGroup Owner
• DataCatalog entry Owner
• Data Catalog Viewer

1.3.2. Download a JSON key and save it as

• ./credentials/datacatalog-custom-entries-manager.json

1.3.3. Set the environment variables

This step can be skipped if you're using Docker.

export GOOGLE_APPLICATION_CREDENTIALS=./credentials/datacatalog-custom-entries-manager.json

2. Manage Custom Entries

2.1. Synchronize

2.1.1. To a CSV file

• SCHEMA

The metadata schema to synchronize Custom Entries is presented below. Use as many lines as needed to describe all Data Catalog Entries you need.

Column	Description	Mandatory
user_specified_system	Indicates the Entry source system	yes
group_id	Id of the Entry Group the Entry belongs to	yes
linked_resource	The resource a metadata Entry refers to	yes
display_name	Display information such as title and description; a short name to identify the Entry (the entry_id field will be generated as a normalized version of the display name)	yes
description	Can consist of several sentences that describe the Entry contents	no
user_specified_type	A custom value indicating the Entry type	yes
created_at	The creation time of the underlying resource, not of the Data Catalog Entry (format: YYYY-MM-DDTHH:MM:SSZ)	no
updated_at	The last-modified time of the underlying resource, not of the Data Catalog Entry (format: YYYY-MM-DDTHH:MM:SSZ)	no

• SAMPLE INPUT

1. sample-input/csv for reference;
2. Data Catalog Sample Custom Entries (Google Sheets) might help to create/export a CSV file.

• COMMANDS

Python + virtualenv

datacatalog-custom-entries sync \
  --csv-file <CSV-FILE-PATH> \
  --project-id <YOUR-PROJECT-ID> --location-id <YOUR-LOCATION-ID>

Docker

docker build --rm --tag datacatalog-custom-entries-manager .
docker run --rm --tty \
  --volume <CREDENTIALS-FILE-FOLDER>:/credentials --volume <CSV-FILE-FOLDER>:/data \
  datacatalog-custom-entries-manager sync \
  --csv-file /data/<CSV-FILE-PATH> \
  --project-id <YOUR-PROJECT-ID> --location-id <YOUR-LOCATION-ID>

2.1.2. To a JSON file

• STRUCTURE

The metadata structure to synchronize Custom Entries is presented below. Use as many objects as needed to describe all Data Catalog Entries you need.

{
  "userSpecifiedSystems": [
    {
      "name": "STRING",
      "entryGroups": [
        {
          "id": "STRING",
          "entries": [
            {
              "linkedResource": "STRING",
              "displayName": "STRING",
              "description": "STRING (optional)",
              "type": "STRING",
              "createdAt": "STRING (optional, format: YYYY-MM-DDTHH:MM:SSZ)",
              "updatedAt": "STRING (optional, format: YYYY-MM-DDTHH:MM:SSZ)"
            }
          ]
        }
      ]
    }
  ]
}

• SAMPLE INPUT

1. sample-input/json for reference;

• COMMANDS

Python + virtualenv

datacatalog-custom-entries sync \
  --json-file <JSON-FILE-PATH> \
  --project-id <YOUR-PROJECT-ID> --location-id <YOUR-LOCATION-ID>

Docker

docker build --rm --tag datacatalog-custom-entries-manager .
docker run --rm --tty \
  --volume <CREDENTIALS-FILE-FOLDER>:/credentials --volume <CSV-FILE-FOLDER>:/data \
  datacatalog-custom-entries-manager sync \
  --json-file <JSON-FILE-PATH> \
  --project-id <YOUR-PROJECT-ID> --location-id <YOUR-LOCATION-ID>