vdk-control-cli 1.0.dev1

VDK Control CLI allows user to create, delete, manage and their Data Jobs in Kubernetes runtime.

Versatile Data Kit Control CLI

VDK Control CLI is meant for Data Engineers to use to manage the lifecycle of jobs - create, delete, deploy, configure Data Jobs.

To build or contribute, see CONTRIBUTING.md.

Installation

Install VDK Control CLI with:

pip install vdk-control-cli

This will install console application called vdkcli

Then run help to see what it can do:

vdkcli --help

Environment variables:

• VDK_AUTHENTICATION_DISABLE - disables security (vdkcli login will not be required). See Security section.
• VDK_BASE_CONFIG_FOLDER - Override local base configuration folder (by default $HOME folder) . Use in case multiple users need to login (e.g in case of automation) on same machine.

Security

By default, all operation require authentication: vdkcli login must have finished successfully. You can disable it with environment variable VDK_AUTHENTICATION_DISABLE=true This would only work if Control Service which VDK CLI uses also has security disabled.

In case of credentials type login flow we start a process on port 31113 to receive the credentials. If you already have process running on 31113 you can override the value. To override the port set environmental variable OAUTH_PORT with free port which the client can use.

Plugins

Installing and Using plugins

Installing a third party plugin can be easily done with pip:

pip install vdk-control-cli-NAME
pip uninstall vdk-control-cli-NAME

If a plugin is installed, vdk automatically finds and integrates it.

Write your own plugin

A plugin is python module that enhances or changes the behaviour of the vdk cli.
A plugin contains one or multiple hook functions.

See all supported hook function specifications that can be implemented in specs.py

In order to create a new plugin there are only 2 steps:

• Create your implementation of the plugin's hook(s):

# define hookimpl as follows (library requirement: pluggy)
hookimpl = pluggy.HookimplMarker("vdk_control_cli.plugin")
# though it's better to use `taurus.vdk.plugin.markers.hookimpl` from vdk-control-cli python package

# name of function must match name of hookspec function
@hookimpl
def get_default_commands_options():
    # your implementation here ; for example to set defaults for `vdkcli login --type --oauth2-authorization-url` command
    default_options = {
        "login": {
            "auth_type": "api-token", # note values must be valid or the plugin may break the CLI, no checking is done at this point
            "api_token_authorization_url": "http://localhost/authorize" # replace dashes with underscore for the argument name
        }
    }
    return default_options

• Register as plugin by listing the plugin modules in vdk_control_cli.plugin entry_point in your setup.py:

    entry_points={ 'vdk_control_cli.plugin': ['name_of_plugin = myproject.pluginmodule'] }

The plugin system is based on pluggy.
SDK Extensibility design can be seen here

Authentication

In order to use credentials login type you need to create OAuth2 Application.