Adding initial Elastic Load Balancer support
This commit is contained in:
Alex Malinovich
Wesley Beary
parent
7ac536e873
commit
7649e5c493
|
|
@ -1,4 +1,5 @@
|
|||
require 'fog/aws/ec2.rb'
|
||||
require 'fog/aws/elb.rb'
|
||||
require 'fog/aws/s3'
|
||||
require 'fog/aws/simpledb'
|
||||
|
||||
|
|
|
|||
|
|
@ -15,6 +15,8 @@ module AWS
|
|||
hash[key] = case key
|
||||
when :ec2
|
||||
Fog::AWS::EC2.new(credentials)
|
||||
when :elb
|
||||
Fog::AWS::ELB.new(credentials)
|
||||
when :simpledb
|
||||
Fog::AWS::SimpleDB.new(credentials)
|
||||
when :s3
|
||||
|
|
|
|||
|
|
@ -0,0 +1,105 @@
|
|||
module Fog
|
||||
module AWS
|
||||
module ELB
|
||||
|
||||
def self.new(options={})
|
||||
|
||||
unless @required
|
||||
require 'fog/aws/requests/elb/describe_load_balancers'
|
||||
require 'fog/aws/parsers/elb/describe_load_balancers'
|
||||
@required = true
|
||||
end
|
||||
|
||||
unless options[:aws_access_key_id]
|
||||
raise ArgumentError.new('aws_access_key_id is required to access elb')
|
||||
end
|
||||
unless options[:aws_secret_access_key]
|
||||
raise ArgumentError.new('aws_secret_access_key is required to access elb')
|
||||
end
|
||||
Fog::AWS::ELB::Real.new(options)
|
||||
end
|
||||
|
||||
class Real
|
||||
|
||||
# Initialize connection to ELB
|
||||
#
|
||||
# ==== Notes
|
||||
# options parameter must include values for :aws_access_key_id and
|
||||
# :aws_secret_access_key in order to create a connection
|
||||
#
|
||||
# ==== Examples
|
||||
# elb = ELB.new(
|
||||
# :aws_access_key_id => your_aws_access_key_id,
|
||||
# :aws_secret_access_key => your_aws_secret_access_key
|
||||
# )
|
||||
#
|
||||
# ==== Parameters
|
||||
# * options<~Hash> - config arguments for connection. Defaults to {}.
|
||||
# * region<~String> - optional region to use, in ['eu-west-1', 'us-east-1', 'us-west-1'i, 'ap-southeast-1']
|
||||
#
|
||||
# ==== Returns
|
||||
# * ELB object with connection to AWS.
|
||||
def initialize(options={})
|
||||
@aws_access_key_id = options[:aws_access_key_id]
|
||||
@aws_secret_access_key = options[:aws_secret_access_key]
|
||||
@hmac = HMAC::SHA256.new(@aws_secret_access_key)
|
||||
@host = options[:host] || case options[:region]
|
||||
when 'eu-west-1'
|
||||
'elasticloadbalancing.eu-west-1.amazonaws.com'
|
||||
when 'us-east-1'
|
||||
'elasticloadbalancing.us-east-1.amazonaws.com'
|
||||
when 'us-west-1'
|
||||
'elasticloadbalancing.us-west-1.amazonaws.com'
|
||||
when 'ap-southeast-1'
|
||||
'elasticloadbalancing.ap-southeast-1.amazonaws.com'
|
||||
else
|
||||
'elasticloadbalancing.amazonaws.com'
|
||||
end
|
||||
@port = options[:port] || 443
|
||||
@scheme = options[:scheme] || 'https'
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
def request(params)
|
||||
@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}")
|
||||
|
||||
idempotent = params.delete(:idempotent)
|
||||
parser = params.delete(:parser)
|
||||
|
||||
params.merge!({
|
||||
'AWSAccessKeyId' => @aws_access_key_id,
|
||||
'SignatureMethod' => 'HmacSHA256',
|
||||
'SignatureVersion' => '2',
|
||||
'Timestamp' => Time.now.utc.strftime("%Y-%m-%dT%H:%M:%SZ"),
|
||||
'Version' => '2009-11-25'
|
||||
})
|
||||
|
||||
body = ''
|
||||
for key in params.keys.sort
|
||||
unless (value = params[key]).nil?
|
||||
body << "#{key}=#{CGI.escape(value.to_s).gsub(/\+/, '%20')}&"
|
||||
end
|
||||
end
|
||||
|
||||
string_to_sign = "POST\n#{@host}\n/\n" << body.chop
|
||||
hmac = @hmac.update(string_to_sign)
|
||||
body << "Signature=#{CGI.escape(Base64.encode64(hmac.digest).chomp!).gsub(/\+/, '%20')}"
|
||||
|
||||
response = @connection.request({
|
||||
:body => body,
|
||||
:expects => 200,
|
||||
:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
|
||||
:idempotent => idempotent,
|
||||
:host => @host,
|
||||
:method => 'POST',
|
||||
:parser => parser
|
||||
})
|
||||
|
||||
response
|
||||
end
|
||||
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -0,0 +1,105 @@
|
|||
module Fog
|
||||
module Parsers
|
||||
module AWS
|
||||
module ELB
|
||||
|
||||
class DescribeLoadBalancers < Fog::Parsers::Base
|
||||
|
||||
def reset
|
||||
@load_balancer = { 'ListenerDescriptions' => [], 'Instances' => [], 'AvailabilityZones' => [], 'Policies' => {'AppCookieStickinessPolicies' => [], 'LBCookieStickinessPolicies' => [] }, 'HealthCheck' => {} }
|
||||
@listener = { }
|
||||
@listener_descriptions = []
|
||||
@listener_description = { 'PolicyNames' => [], 'Listener' => {} }
|
||||
@results = { 'LoadBalancerDescriptions' => [] }
|
||||
@response = { 'DescribeLoadBalancersResult' => {}, 'ResponseMetadata' => {} }
|
||||
end
|
||||
|
||||
def start_element(name, attrs = [])
|
||||
case name
|
||||
when 'ListenerDescriptions'
|
||||
@in_listeners = true
|
||||
when 'Instances'
|
||||
@in_instances = true
|
||||
when 'AvailabilityZones'
|
||||
@in_availability_zones = true
|
||||
when 'PolicyNames'
|
||||
@in_policy_names = true
|
||||
when 'Policies'
|
||||
@in_policies = true
|
||||
when 'LBCookieStickinessPolicies'
|
||||
@in_lb_cookies = true
|
||||
when 'AppCookieStickinessPolicies'
|
||||
@in_app_cookies = true
|
||||
end
|
||||
@value = ''
|
||||
end
|
||||
|
||||
def end_element(name)
|
||||
case name
|
||||
when 'member'
|
||||
if @in_policy_names
|
||||
@listener_description['PolicyNames'] << @value
|
||||
elsif @in_availability_zones
|
||||
@load_balancer['AvailabilityZones'] << @value
|
||||
elsif @in_listeners
|
||||
@listener_description['Listener'] = @listener
|
||||
@listener_descriptions << @listener_description
|
||||
@load_balancer['ListenerDescriptions'] = @listener_descriptions
|
||||
@listener_description = { 'PolicyNames' => [], 'Listener' => {} }
|
||||
elsif @in_app_cookies
|
||||
@load_balancer['Policies']['AppCookieStickinessPolicies'] << @value
|
||||
elsif @in_lb_cookies
|
||||
@load_balancer['Policies']['LBCookieStickinessPolicies'] << @value
|
||||
elsif !@in_instances && !@in_policies
|
||||
@results['LoadBalancerDescriptions'] << @load_balancer
|
||||
@load_balancer = { 'ListenerDescriptions' => [], 'Instances' => [], 'AvailabilityZones' => [], 'Policies' => {'AppCookieStickinessPolicies' => [], 'LBCookieStickinessPolicies' => [] }, 'HealthCheck' => {} }
|
||||
end
|
||||
|
||||
when 'LoadBalancerName', 'DNSName'
|
||||
@load_balancer[name] = @value
|
||||
when 'CreatedTime'
|
||||
@load_balancer[name] = Time.parse(@value)
|
||||
|
||||
when 'ListenerDescriptions'
|
||||
@in_listeners = false
|
||||
when 'PolicyNames'
|
||||
@in_policy_names = false
|
||||
when 'Protocol'
|
||||
@listener[name] = @value
|
||||
when 'LoadBalancerPort', 'InstancePort'
|
||||
@listener[name] = @value.to_i
|
||||
|
||||
when 'Instances'
|
||||
@in_instances = false
|
||||
when 'InstanceId'
|
||||
@load_balancer['Instances'] << @value
|
||||
|
||||
when 'AvailabilityZones'
|
||||
@in_availability_zones = false
|
||||
|
||||
when 'Policies'
|
||||
@in_policies = false
|
||||
when 'AppCookieStickinessPolicies'
|
||||
@in_app_cookies = false
|
||||
when 'LBCookieStickinessPolicies'
|
||||
@in_lb_cookies = false
|
||||
|
||||
when 'Interval', 'HealthyThreshold', 'Timeout', 'UnhealthyThreshold'
|
||||
@load_balancer['HealthCheck'][name] = @value.to_i
|
||||
when 'Target'
|
||||
@load_balancer['HealthCheck'][name] = @value
|
||||
|
||||
when 'RequestId'
|
||||
@response['ResponseMetadata'][name] = @value
|
||||
|
||||
when 'DescribeLoadBalancersResponse'
|
||||
@response['DescribeLoadBalancersResult'] = @results
|
||||
end
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
module Fog
|
||||
module AWS
|
||||
module ELB
|
||||
class Real
|
||||
|
||||
# Describe all or specified load balancers
|
||||
#
|
||||
# ==== Parameters
|
||||
# * lb_name<~Array> - List of load balancer names to describe, defaults to all
|
||||
#
|
||||
# ==== Returns
|
||||
# * response<~Excon::Response>:
|
||||
# * body<~Hash>:
|
||||
# * 'ResponseMetadata'<~Hash>:
|
||||
# * 'RequestId'<~String> - Id of request
|
||||
# * 'DescribeLoadBalancersResult'<~Hash>:
|
||||
# * 'LoadBalancerDescriptions'<~Array>
|
||||
# * 'LoadBalancerName'<~String> - name of load balancer
|
||||
# * 'DNSName'<~String> - external DNS name of load balancer
|
||||
# * 'CreatedTime'<~Time> - time load balancer was created
|
||||
# * 'ListenerDescriptions'<~Array>
|
||||
# * 'PolicyNames'<~Array> - list of policies enabled
|
||||
# * 'Listener'<~Hash>:
|
||||
# * 'InstancePort'<~Integer> - port on instance that requests are sent to
|
||||
# * 'Protocol'<~String> - transport protocol used for routing in [TCP, HTTP]
|
||||
# * 'LoadBalancerPort'<~Integer> - port that load balancer listens on for requests
|
||||
# * 'HealthCheck'<~Hash>:
|
||||
# * 'HealthyThreshold'<~Integer> - number of consecutive health probe successes required before moving the instance to the Healthy state
|
||||
# * 'Timeout'<~Integer> - number of seconds after which no response means a failed health probe
|
||||
# * 'Interval'<~Integer> - interval (in seconds) between health checks of an individual instance
|
||||
# * 'UnhealthyThreshold'<~Integer> - number of consecutive health probe failures that move the instance to the unhealthy state
|
||||
# * 'Target'<~String> - string describing protocol type, port and URL to check
|
||||
# * 'Policies'<~Hash>:
|
||||
# * 'LBCookieStickinessPolicies'<~Array> - list of Load Balancer Generated Cookie Stickiness policies for the LoadBalancer
|
||||
# * 'AppCookieStickinessPolicies'<~Array> - list of Application Generated Cookie Stickiness policies for the LoadBalancer
|
||||
# * 'AvailabilityZones'<~Array> - list of availability zones covered by this load balancer
|
||||
# * 'Instances'<~Array> - list of instances that the load balancer balances between
|
||||
def describe_load_balancers(lb_name = [])
|
||||
lb_name = [lb_name] if lb_name.instance_of?(String)
|
||||
lb_name.unshift(nil)
|
||||
params = AWS.indexed_param('LoadBalancerNames.member', lb_name)
|
||||
request({
|
||||
'Action' => 'DescribeLoadBalancers',
|
||||
:parser => Fog::Parsers::AWS::ELB::DescribeLoadBalancers.new
|
||||
}.merge!(params))
|
||||
end
|
||||
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Reference in New Issue