First stab at a knife.rb with comments for all the various knife plugins we publish

knife.rb

log_level                :info
log_location             STDOUT
node_name                ENV['USER']
client_key               "#{ENV['HOME']}/.chef/#{ENV['USER']}.pem"
validation_client_name   'chef-validator'
validation_key           '/etc/chef/validation.pem'
chef_server_url          'http://localhost:4000'
cache_type               'BasicFile'
cache_options( :path => "#{ENV['HOME']}/.chef/checksums" )
cookbook_path [ '/var/chef/cookbooks' ]

######################################################################
# Knife specific configuration options. These are used by Core knife
# commands and optional Gems and correspond to options passed to the
# command. The default value is specified, modify and uncomment.
#
# Some configuration options overlap with different knife plugins. The
# option specified will be used as the default for all
# plugins. However, the command-line options will override the setting
# specified in this file.

# Core: knife ssh
#knife[:ssh_port] = 22

# Core: knife bootstrap

# Default bootstrap template by distribution name. This is
# also used in knife gems for bootstrapping cloud instances.
#knife[:distro] = "ubuntu10.04-gems"

# Default bootstrap template by full pathname to the template file.
# knife[:template_file] = ""

# Version of Chef to install during bootstrap.
#knife[:bootstrap_version] = ""

# HTTP proxy to use during bootstrap.
#knife[:bootstrap_proxy] = ""

######################################################################
# Gem: knife-ec2

# Authentication credentials for the AWS API. Specify the access key
# ID and secret access key.
#knife[:aws_access_key_id]     = ""
#knife[:aws_secret_access_key] = ""

# Default flavor of server (m1.small, c1.medium, etc).
#knife[:flavor] = "m1.small"

# Default AMI identifier, e.g. ami-12345678
#knife[:image] = ""

# AWS Region
#knife[:region] = "us-east-1"

# AWS Availability Zone. Must be in the same Region.
#knife[:availability_zone] = "us-east-1b"

# A file with EC2 User Data to provision the instance.
#knife[:aws_user_data] = ""

# AWS SSH Keypair.
#knife[:aws_ssh_key_id] = ""

######################################################################
# Gem: knife-eucalyptus

# URL to the Eucalyptus API endpoint.
#knife[:euca_api_endpoint] = "http://ecc.eucalyptus.com:8773/services/Eucalyptus"

# Authentication credentials for the API. Specify the access key
# ID and secret access key.
#knife[:euca_access_key_id]     = ""
#knife[:euca_secret_access_key] = ""

# Default flavor of server (m1.small, c1.medium, etc). Obtain a list
# with:
#    knife euca flavor list
#knife[:flavor] = "m1.small"

# Default AMI identifier, e.g. ami-12345678. Obtain a list with:
#    knife euca image list
#knife[:image] = ""

# Eucalyptus region
#knife[:region] = ""

# Eucalyptus Availability Zone. Must be in the same Region.
#knife[:availability_zone] = ""

# Eucalyptus SSH Keypair.
#knife[:euca_ssh_key_id] = ""

######################################################################
# Gem: knife-linode

# Linode API key.
#knife[:linode_api_key] = ""

# The flavor of server to create by default. Obtain a list with:
#    knife linode flavor list
#knife[:linode_flavor] = 1

# The Linode image to use. Obtain a list with:
#    knife linode image list
#knife[:linode_image] = 83

# The Linode kernel to use. Obtain a list with:
#    knife linode kernel list
#knife[:linode_kernel] = 133

# The Linode data center to use. Obtain a list with:
#    knife linode datacenter list

#knife[:linode_datacenter] = 3

# The default password to use when connecting via SSH.
#knife[:linode_ssh_password] = "BarbaZ"

######################################################################
# Gem: knife-openstack

# URL for the OpenStack API.
#knife[:openstack_api_endpoint] = ""

# Authentication credentials for the API. Specify the access key
# ID and secret access key.
#knife[:openstack_access_key_id]     = ""
#knife[:openstack_secret_access_key] = ""

# Default flavor of server (m1.small, c1.medium, etc). Obtain a list
# with:
#    knife openstack flavor list
#knife[:flavor] = "m1.small"

# Default AMI identifier, e.g. ami-12345678. Obtain a list with:
#    knife openstack image list
#knife[:image] = ""

# OpenStack region
#knife[:region] = ""

# OpenStack Availability Zone. Must be in the same Region.
#knife[:availability_zone] = ""

# OpenStack SSH Keypair
#knife[:openstack_ssh_key_id] = ""

######################################################################
# Gem: knife-rackspace

# URL for the Rackspace authentication API.
#knife[:rackspace_api_auth_url] = "auth.api.rackspacecloud.com"

# Authentication credentials for the API. Specify the API key and the
# username.
#knife[:rackspace_api_key]      = ""
#knife[:rackspace_api_username] = ""

# JSON string of metadata hash supplied to the newly created server.
#knife[:rackspace_metadata] = ""

# Default flavor to use. Obtain a list with:
#    knife rackspace flavor list
#knife[:flavor] = 2

# Default image to use. Obtain a list with:
#    knife rackspace image list
#knife[:image] = ""

#  region
#knife[:region] = ""

######################################################################
# Gem: knife-terremark

# Authentication credentials. Specify the Terremark service, username
# and password.
#knife[:terremark_service]  = ""
#knife[:terremark_username] = ""
#knife[:terremark_password] = ""

######################################################################
# Gem: knife-windows

# User and password to authenticate to WinRM.
#knife[:winrm_user] = "Administrator"
#knife[:winrm_password] = ""

# WinRM port.
#knife[:winrm_port] = "5985"

# The WinRM transport type. 'ssl' or 'plaintext'.
#knife[:winrm_transport] = "plaintext"

# The Certificate Authority (CA) trust file used for 'ssl' transport.
#knife[:ca_trust_file]        = ""

# Authentication using Kerberos. Set the keytab, realm and service.
#knife[:kerberos_keytab_file] = ""
#knife[:kerberos_realm]       = ""
#knife[:kerberos_service]     = ""