class Aws::AutoScaling::LoadBalancer
Public Class Methods
@overload def initialize(group_name
, name, options = {})
@param [String] group_name @param [String] name @option options [Client] :client
@overload def initialize(options = {})
@option options [required, String] :group_name @option options [required, String] :name @option options [Client] :client
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 24 def initialize(*args) options = Hash === args.last ? args.pop.dup : {} @group_name = extract_group_name(args, options) @name = extract_name(args, options) @data = options.delete(:data) @client = options.delete(:client) || Client.new(options) @waiter_block_warned = false end
Public Instance Methods
@example Request syntax with placeholder values
load_balancer.attach()
@param [Hash] options ({}) @return [Types::AttachLoadBalancersResultType]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 203 def attach(options = {}) options = Aws::Util.deep_merge(options, auto_scaling_group_name: @group_name, load_balancer_names: [@name] ) resp = @client.attach_load_balancers(options) resp.data end
@return [Client]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 72 def client @client end
@raise [NotImplementedError] Raises when {#data_loaded?} is `false`. @return [Types::LoadBalancerState]
Returns the data for this {LoadBalancer}.
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 87 def data load unless @data @data end
@return [Boolean]
Returns `true` if this resource is loaded. Accessing attributes or {#data} on an unloaded resource will trigger a call to {#load}.
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 95 def data_loaded? !!@data end
@example Request syntax with placeholder values
load_balancer.detach()
@param [Hash] options ({}) @return [Types::DetachLoadBalancersResultType]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 217 def detach(options = {}) options = Aws::Util.deep_merge(options, auto_scaling_group_name: @group_name, load_balancer_names: [@name] ) resp = @client.detach_load_balancers(options) resp.data end
@return [AutoScalingGroup]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 229 def group AutoScalingGroup.new( name: @group_name, client: @client ) end
@return [String]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 36 def group_name @group_name end
@deprecated @api private
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 238 def identifiers { group_name: @group_name, name: @name } end
@raise [NotImplementedError] @api private
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 78 def load msg = "#load is not implemented, data only available via enumeration" raise NotImplementedError, msg end
@return [String]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 41 def name @name end
One of the following load balancer states:
-
`Adding` - The Auto Scaling instances are being registered with the load balancer.
-
`Added` - All Auto Scaling instances are registered with the load balancer.
-
`InService` - At least one Auto Scaling instance passed an `ELB` health check.
-
`Removing` - The Auto Scaling instances are being deregistered from the load balancer. If connection draining is enabled, Elastic Load Balancing waits for in-flight requests to complete before deregistering the instances.
-
`Removed` - All Auto Scaling instances are deregistered from the load balancer.
@return [String]
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 65 def state data[:state] end
@deprecated Use [Aws::AutoScaling::Client] wait_until
instead
Waiter polls an API operation until a resource enters a desired state.
@note The waiting operation is performed on a copy. The original resource
remains unchanged.
## Basic Usage
Waiter will polls until it is successful, it fails by entering a terminal state, or until a maximum number of attempts are made.
# polls in a loop until condition is true resource.wait_until(options) {|resource| condition}
## Example
instance.wait_until(max_attempts:10, delay:5) do |instance| instance.state.name == 'running' end
## Configuration
You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. The waiting condition is set by passing a block to {#wait_until}:
# poll for ~25 seconds resource.wait_until(max_attempts:5,delay:5) {|resource|...}
## Callbacks
You can be notified before each polling attempt and before each delay. If you throw `:success` or `:failure` from these callbacks, it will terminate the waiter.
started_at = Time.now # poll for 1 hour, instead of a number of attempts proc = Proc.new do |attempts, response| throw :failure if Time.now - started_at > 3600 end # disable max attempts instance.wait_until(before_wait:proc, max_attempts:nil) {...}
## Handling Errors
When a waiter is successful, it returns the Resource
. When a waiter fails, it raises an error.
begin resource.wait_until(...) rescue Aws::Waiters::Errors::WaiterFailed # resource did not enter the desired state in time end
@yieldparam [Resource] resource to be used in the waiting condition.
@raise [Aws::Waiters::Errors::FailureStateError] Raised when the waiter
terminates because the waiter has entered a state that it will not transition out of, preventing success. yet successful.
@raise [Aws::Waiters::Errors::UnexpectedError] Raised when an error is
encountered while polling for a resource that is not expected.
@raise [NotImplementedError] Raised when the resource does not
@option options [Integer] :max_attempts (10) Maximum number of attempts @option options [Integer] :delay (10) Delay between each attempt in seconds @option options [Proc] :before_attempt (nil) Callback invoked before each attempt @option options [Proc] :before_wait (nil) Callback invoked before each wait @return [Resource] if the waiter was successful
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 179 def wait_until(options = {}, &block) self_copy = self.dup attempts = 0 options[:max_attempts] = 10 unless options.key?(:max_attempts) options[:delay] ||= 10 options[:poller] = Proc.new do attempts += 1 if block.call(self_copy) [:success, self_copy] else self_copy.reload unless attempts == options[:max_attempts] :retry end end Aws::Waiters::Waiter.new(options).wait({}) end
Private Instance Methods
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 248 def extract_group_name(args, options) value = args[0] || options.delete(:group_name) case value when String then value when nil then raise ArgumentError, "missing required option :group_name" else msg = "expected :group_name to be a String, got #{value.class}" raise ArgumentError, msg end end
# File lib/aws-sdk-autoscaling/load_balancer.rb, line 259 def extract_name(args, options) value = args[1] || options.delete(:name) case value when String then value when nil then raise ArgumentError, "missing required option :name" else msg = "expected :name to be a String, got #{value.class}" raise ArgumentError, msg end end