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Detailed CLI Options

The rackctl command-line interface provides several commands for managing Kubernetes clusters and related resources. This document details all available commands and their options.

Available Commands

Command	Description
create	Creates a new Kubernetes cluster
delete	Deletes an existing cluster
gen-ssl	Generates SSL certificates for a given domain
ps	Lists all running Kubernetes clusters
switch	Switches the current context to a specified cluster

Command Details

create Command

Creates and provisions a new Kubernetes cluster.

Basic Usage

rackctl create <cluster-name>

Full Options

rackctl create <cluster-name> \
  [--description <description>] \
  [--cpu-limit <cpu>] \
  [--ram-limit <ram>] \
  [--disk-size <size>] \
  [--region-code <region>] \
  [--ttl <seconds>] \
  [--do-not-delete <bool>]

Parameters

Parameter	Description	Default	Example
name	Name of the cluster	(Required)	production-cluster
--description	Description of the cluster	”No description provided”	--description "Production environment for e-commerce app"
--cpu-limit	CPU limit in cores	2.0	--cpu-limit 4.0
--ram-limit	RAM limit in GB	3.5	--ram-limit 8.0
--disk-size	Disk size in GB	20	--disk-size 100
--region-code	Region to deploy the cluster	”ap_south_1”	--region-code us_east_1
--ttl	Time to live in seconds	3000 (50 minutes)	--ttl 86400 (24 hours)
--do-not-delete	Prevents automatic deletion	false	--do-not-delete true

Example

# Create a production cluster with 4 CPU cores, 8GB RAM, and 100GB disk space
rackctl create production-cluster \
  --description "Production environment" \
  --cpu-limit 4.0 \
  --ram-limit 8.0 \
  --disk-size 100 \
  --region-code us_east_1

delete Command

Deletes an existing Kubernetes cluster.

Usage

rackctl delete --uuid <cluster-uuid>

Parameters

Parameter	Description	Example
--uuid	UUID of the cluster to delete	--uuid 413f3e1c-b3a5-4e2d-a981-53ecbd0358ff

Example

# Delete a specific cluster
rackctl delete --uuid f75899c7-6d2a-4169-a7e2-450a3a8d7613

gen-ssl Command

Generates SSL certificates for a specified domain.

Usage

rackctl gen-ssl <domain>

Parameters

Parameter	Description	Example
domain	Domain name for which SSL needs to be generated	app1.dev.example.com

Example

# Generate SSL for a domain
rackctl gen-ssl app1.dev.example.com

ps Command

Lists all running Kubernetes clusters, similar to docker ps.

Usage

rackctl ps

Example Output

CLUSTER ID                             NAME       CREATED                STATE    REGION
413f3e1c-b3a5-4e2d-a981-53ecbd0358ff  may17-1    17/05/2025, 08:33:05   running  ap_south_1
f75899c7-6d2a-4169-a7e2-450a3a8d7613  may17      17/05/2025, 08:13:31   running  ap_south_1

switch Command

Switches the current context to a specified cluster.

Usage

rackctl switch <cluster-id>

Parameters

Parameter	Description	Example
id	ID or UUID of the cluster to switch to	413f3e1c-b3a5-4e2d-a981-53ecbd0358ff

Example

# Switch to a specific cluster
rackctl switch 413f3e1c-b3a5-4e2d-a981-53ecbd0358ff

Environment Variables

Variable	Description	Example
RACKCTL_SESSION_TOKEN	Authentication token for API requests	export RACKCTL_SESSION_TOKEN=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...

Best Practices

1. Resource Management

   • Request only the resources you need (CPU, RAM, disk) to optimize costs
   • Use appropriate --ttl values for temporary clusters

2. Security

   • Store tokens securely, preferably in environment variables or secrets management systems
   • For CI/CD pipelines, use long-lived tokens from the token management interface

3. Workflow Optimization

   • Use rackctl ps to monitor your running clusters
   • Use descriptive names and detailed descriptions for better organization
   • Utilize the switch command to quickly change between working contexts