datacatalog-tag-manager 0.2.4

A package to manage Google Cloud Data Catalog tags, loading metadata from external sources

datacatalog-tag-manager

A Python package to manage Google Cloud Data Catalog tags, loading metadata from external sources. Currently supports the CSV file format.

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 same place, making it easier to follow below instructions.

mkdir ./datacatalog-tag-manager
cd ./datacatalog-tag-manager

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

1.2. Docker

Docker may be used as an alternative to run datacatalog-tag-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-tag-manager
cd ./datacatalog-tag-manager

1.3. Auth credentials

1.3.1. Create a service account and grant it below roles

• BigQuery Metadata Viewer
• Data Catalog TagTemplate User
• A custom role with bigquery.datasets.updateTag and bigquery.tables.updateTag permissions

1.3.2. Download a JSON key and save it as

• ./credentials/datacatalog-tag-manager.json

1.3.3. Set the environment variables

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

export GOOGLE_APPLICATION_CREDENTIALS=./credentials/datacatalog-tag-manager.json

2. Manage Tags

2.1. Create

The metadata schema to create Tags is described below. Use as many lines as needed to create all the Tags and Fields you need.

Column	Description	Mandatory
linked_resource	Full name of the asset the Entry refers to	yes
template_name	Resource name of the Tag Template for the Tag	yes
column	Attach Tags to a column belonging to the Entry schema	no
field_id	Id of the Tag field	yes
field_value	Value of the Tag field	yes

TIPS

• sample-input/create-tags for reference;
• Data Catalog Sample Tags (Google Sheets) might help to create/export a CSV file.

2.1.1. From a CSV file

• Python + virtualenv

datacatalog-tag-manager create-tags --csv-file CSV_FILE_PATH

• Docker

docker build --rm --tag datacatalog-tag-manager .
docker run --rm --tty \
  --volume CREDENTIALS_FILE_FOLDER:/credentials --volume CSV_FILE_FOLDER:/data \
  datacatalog-tag-manager create-tags --csv-file /data/CSV_FILE_NAME

2.2. Delete

The metadata schema to delete Tags is described below. Use as many lines as needed to delete all the Tags you want.

Column	Description	Mandatory
linked_resource	Full name of the asset the Entry refers to	yes
template_name	Resource name of the Tag Template of the Tag	yes
column	Delete Tags from a column belonging to the Entry schema	no

TIPS

• sample-input/delete-tags for reference;
• Data Catalog Sample Tags (Google Sheets) might help to create/export a CSV file.

2.2.1. From a CSV file

• Python + virtualenv

datacatalog-tag-manager delete-tags --csv-file CSV_FILE_PATH

• Docker

docker build --rm --tag datacatalog-tag-manager .
docker run --rm --tty \
  --volume CREDENTIALS_FILE_FOLDER:/credentials --volume CSV_FILE_FOLDER:/data \
  datacatalog-tag-manager delete-tags --csv-file /data/CSV_FILE_NAME