CDK - add cli tool

Author: EmpieichO

docs/cdk/getting-started/cdk-cli-tool.md

@@ -0,0 +1,62 @@
+The Polygon Chain Development Kit, or simply CDK, is a tool box of components that a chain administrator can use to build a rollup or validium chain.
+
+At a high level, CDK components are like building blocks a chain administrator can select to configure a ZK-powered chain according to their own design.
+
+To abstract away the complexity of running or configuring CDK components, Polygon provides a Rust-based CLI tool which is an interface that chain administrators can use to interact with CDK components.
+
+This CLI tool is an entry point for chain administrators to access the CDK system.
+
+## Installation
+
+To use the CLI tool the chain admin needs only download the precompiled CDK package ([the binaries](https://github.com/0xPolygon/cdk/releases/)).
+
+There is no need to have Golang, checkout the CDK repo, or install anything else. It is also trustless.
+
+## Running the CLI tool
+
+!!! info
+    
+    Requirements:
+
+    Get the binaries, packages and docker images published with each release, [here](https://github.com/0xPolygon/cdk/releases/).
+    
+## Commands
+
+### CDK
+
+Here the Admin needs to provide the CDK-node configuration file and a genesis file of the desired chain.
+
+Usage: `cdk --config <CONFIG> --chain <CHAIN> <COMMAND>`
+
+Commands:
+* `node` - Run the cdk-node with the provided configuration. 
+* `erigon` - Run cdk-erigon node with the provided default configuration. 
+* `help`    Print this message or the help of the given subcommand(s). 
+
+Options:
+* `-c, --config <CONFIG>` - The path to the configuration file [env: `CDK_CONFIG_PATH=`]
+* `-g, --chain <CHAIN>` - The path to a chain specification file [env: `CDK_GENESIS_PATH=`]
+* `-h, --help`             Print help
+
+### CDK node
+
+To run cdk-node use the `node` subcommand
+
+Usage: `cdk --config <CONFIG> --chain <CHAIN> node [OPTIONS]`
+
+Options:
+* `-c, --components <COMPONENTS>`  Components to run [env: `CDK_COMPONENTS=`]
+* `-h, --help`             Print help
+
+### CDK erigon
+
+Chain administrators can run a cdk-erigon RPC node that syncs to an existing chain with default parameters.
+
+This subcommand is intended for quickly spin-up of an RPC node or to test existing chains with default configuration values. In order fine tune and to access all configuration values, check the [full cdk-erigon documentation](../../cdk/getting-started/cdk-erigon/index.md) reference to erigon configuration docs.
+
+Usage: `cdk --config <CONFIG> --chain <CHAIN> erigon`
+
+Options:
+* `-h, --help`  Print help
+
+The above command generates all the required configuration files for cdk-erigon on-the-fly and run the node.

mkdocs.yml

@@ -57,6 +57,7 @@ nav:
         - Version compatibility matrix: cdk/version-matrix.md
       - Get started: 
         - Local deployment guide: cdk/getting-started/local-deployment.md
+        - CLI tool: cdk/getting-started/cdk-cli-tool.md
       - Concepts:
         - Layer 2s: cdk/concepts/layer2s.md
         - L2 architecture overview: cdk/concepts/architecture.md