Supermicro Redfish Ruby Client

A Ruby client library for interacting with Supermicro BMC (Baseboard Management Controller) via the Redfish API.

Features

This gem provides a Ruby interface to manage Supermicro servers through their BMC, offering the same functionality as the iDRAC gem but for Supermicro hardware:

Inventory Management

• System Information: Model, serial number, BIOS version, UUID
• CPU: Socket information, cores, threads, speed
• Memory: DIMMs capacity, speed, health status
• Storage: Controllers, physical drives, volumes/RAID configuration
• Network: NICs with MAC addresses, link status, IP configuration
• Power Supplies: Status, wattage, health monitoring
• Thermal: Fan speeds, temperature sensors
• Power Consumption: Current usage, capacity

Configuration

• Boot Order: Set boot device priority
• Boot Override: One-time or persistent boot device selection
• BIOS Settings: Read and modify BIOS attributes
• Network Protocols: Configure BMC network services
• User Management: Create, modify, delete BMC users

Virtual Media

• Mount/Unmount ISO: Attach HTTP-served ISO images
• Virtual Media Status: Check mounted media
• Boot from Virtual Media: Combined mount and boot configuration

Power Management

• Power Status: Check current power state
• Power Control: On, Off, Restart, Power Cycle
• Graceful Shutdown: Attempt graceful OS shutdown

Monitoring & Logging

• System Event Log: View and clear SEL entries
• Jobs/Tasks: Monitor long-running operations
• Active Sessions: View current BMC sessions

Installation

Add to your Gemfile:

gem 'supermicro'

Or install directly:

gem install supermicro

Usage

Basic Connection

require 'supermicro'

# Create a client
client = Supermicro.new(
  host: '192.168.1.100',
  username: 'admin',
  password: 'password',
  verify_ssl: false
)

# Or use block form with automatic session cleanup
Supermicro.connect(
  host: '192.168.1.100',
  username: 'admin',
  password: 'password'
) do |client|
  # Your code here
  puts client.power_status
end

Power Management

# Check power status
status = client.power_status  # => "On" or "Off"

# Power operations
client.power_on
client.power_off
client.power_restart
client.power_cycle

System Inventory

# Get system information
info = client.system_info

# Get CPU information
cpus = client.cpus

# Get memory information
memory = client.memory

# Get storage summary
storage = client.storage_summary

# Get thermal information
fans = client.fans
temps = client.temperatures

Virtual Media

# Check virtual media status
media = client.virtual_media_status

# Mount an ISO
client.insert_virtual_media("http://example.com/os.iso")

# Unmount all media
client.unmount_all_media

# Mount ISO and set boot override
client.mount_iso_and_boot("http://example.com/os.iso")

Boot Configuration

# Get boot options
options = client.boot_options

# Set one-time boot override
client.set_boot_override("Pxe", persistent: false)

# Quick boot methods
client.boot_to_pxe
client.boot_to_disk
client.boot_to_cd
client.boot_to_bios_setup

BIOS Configuration

# Get BIOS attributes
attrs = client.bios_attributes

# Set BIOS attribute
client.set_bios_attribute("QuietBoot", "Enabled")

# Reset BIOS to defaults
client.reset_bios_defaults

Configuration Options

• host: BMC IP address or hostname
• username: BMC username
• password: BMC password
• port: BMC port (default: 443)
• use_ssl: Use HTTPS (default: true)
• verify_ssl: Verify SSL certificates (default: false)
• direct_mode: Use Basic Auth instead of sessions (default: false)
• retry_count: Number of retries for failed requests (default: 3)
• retry_delay: Initial delay between retries in seconds (default: 1)

Debugging

Enable verbose output:

client.verbosity = 1  # Basic debug output
client.verbosity = 2  # Include request/response details
client.verbosity = 3  # Include full stack traces

Compatibility

Tested with:

• Supermicro BMC firmware version 01.04.08
• Redfish API version 1.11.0
• Ruby 3.0+

Differences from iDRAC

While the API is similar to the iDRAC gem, there are some Supermicro-specific differences:

1. URL Paths: Supermicro uses numeric IDs (e.g., /Systems/1) instead of Dell's embedded names
2. Redirects: Supermicro BMC redirects some paths to include trailing slashes
3. SEL Path: System Event Log may be at different locations depending on firmware
4. Task Management: Task/Job structure differs from Dell's implementation
5. Virtual Media: Different action paths and supported media types

Testing

Run the test suite:

bundle exec rspec

Or with specific tests:

bundle exec rspec spec/supermicro_spec.rb

Development

After checking out the repo, run bundle install to install dependencies. Then, run bundle exec rspec to run the tests.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/buildio/supermicro.

License

MIT