How to Use the Ascend CLI to Mass Delete Components

Introduction

Deleting components in Ascend can be a tedious task, especially if you have to delete multiple components one by one. However, the Ascend CLI makes it easier to delete multiple components at once. In this article, you will learn how to use the Ascend CLI to mass delete components.

Step 1: Connect to Ascend

Before you can use the Ascend CLI to delete components, you must first connect to your Ascend environment. To do this, open your terminal and run the following command:

$ ascend --hostname http://<your_env>.ascend.

Replace <your_env> with the name of your Ascend environment.

Step 2: List Components

To delete components, you need to know their IDs. You can use the Ascend CLI to list all the components in a data service and dataflow. Run the following command:

list components --data-service <your_data_service> --dataflow <your_data_flow>

Replace <your_data_service> and <your_data_flow> with the name of your data service and dataflow, respectively. This command will return a JSON object containing information about all the components in the specified data service and dataflow.

Step 3: Filter Components

Once you have a list of all the components in your data service and dataflow, you can use jq and grep to filter the list to include only the components you want to delete. Run the following command:

jq -r ".[].id" | grep -i <pattern>

Replace <pattern> with the pattern you want to search for in the component IDs. This command will return a list of component IDs that match the specified pattern.

Step 4: Delete Components

Now that you have a list of component IDs to delete, you can use the Ascend CLI to delete them. Run the following command:

| xargs -I '{}' ascend --hostname=http://<your_env>.ascend.io delete component <your_data_service> <your_data_flow> {}

Replace <your_env>, <your_data_service>, and <your_data_flow> with the appropriate values. This command uses the xargs utility to pass each component ID as an argument to the ascend delete component command.

Step 5: Save Deleted Components

If you want to keep a record of the components you have deleted, you can use the tee command to write the names of the deleted components to a file. Run the following command:

| tee -a deleted.txt

This command will append the names of the deleted components to a file called deleted.txt.

Conclusion

Using the Ascend CLI to mass delete components can save you a lot of time and effort. By following the steps outlined in this article, you can easily delete multiple components at once and keep a record of the deleted components for future reference.