Class: Aws::EC2::PlacementGroup

#initialize(name, options = {}) ⇒ PlacementGroup
Parameters:
- name (String)
Options Hash (options):
- :client (Client)
#initialize(options = {}) ⇒ PlacementGroup
Options Hash (options):
- :name (required, String)
- :client (Client)

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 22

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @name = extract_name(args, options)
  @data = options.delete(:data)
  @client = options.delete(:client) || Client.new(options)
  @waiter_block_warned = false
end

Instance Method Details

#client ⇒ `Client`

Returns:

(Client)



72
73
74

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 72

def client
  @client
end

#data ⇒ `Types::PlacementGroup`

Returns the data for this Aws::EC2::PlacementGroup. Calls Client#describe_placement_groups if #data_loaded? is false.

Returns:

(Types::PlacementGroup) —
Returns the data for this Aws::EC2::PlacementGroup. Calls Client#describe_placement_groups if #data_loaded? is false.

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 92

def data
  load unless @data
  @data
end

#data_loaded? ⇒ `Boolean`

Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.

Returns:

(Boolean) —
Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.



100
101
102

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 100

def data_loaded?
  !!@data
end

#delete(options = {}) ⇒ `EmptyStructure`

Examples:

Request syntax with placeholder values


placement_group.delete({
  dry_run: false,
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:dry_run (Boolean) —
Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 215

def delete(options = {})
  options = options.merge(group_name: @name)
  resp = @client.delete_placement_group(options)
  resp.data
end

#group_id ⇒ `String`

The ID of the placement group.

Returns:

(String)



59
60
61

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 59

def group_id
  data[:group_id]
end

#instances(options = {}) ⇒ `Instance::Collection`

Examples:

Request syntax with placeholder values


instances = placement_group.instances({
  filters: [
    {
      name: "String",
      values: ["String"],
    },
  ],
  instance_ids: ["InstanceId"],
  dry_run: false,
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:filters (Array<Types::Filter>) —
The filters.
- affinity - The affinity setting for an instance running on a Dedicated Host (default | host).
- architecture - The instance architecture (i386 | x86_64 | arm64).
- availability-zone - The Availability Zone of the instance.
- block-device-mapping.attach-time - The attach time for an EBS volume mapped to the instance, for example, 2010-09-15T17:15:20.000Z.
- block-device-mapping.delete-on-termination - A Boolean that indicates whether the EBS volume is deleted on instance termination.
- block-device-mapping.device-name - The device name specified in the block device mapping (for example, /dev/sdh or xvdh).
- block-device-mapping.status - The status for the EBS volume (attaching | attached | detaching | detached).
- block-device-mapping.volume-id - The volume ID of the EBS volume.
- client-token - The idempotency token you provided when you launched the instance.
- dns-name - The public DNS name of the instance.
- group-id - The ID of the security group for the instance. EC2-Classic only.
- group-name - The name of the security group for the instance. EC2-Classic only.
- hibernation-options.configured - A Boolean that indicates whether the instance is enabled for hibernation. A value of true means that the instance is enabled for hibernation.
- host-id - The ID of the Dedicated Host on which the instance is running, if applicable.
- hypervisor - The hypervisor type of the instance (ovm | xen). The value xen is used for both Xen and Nitro hypervisors.
- iam-instance-profile.arn - The instance profile associated with the instance. Specified as an ARN.
- image-id - The ID of the image used to launch the instance.
- instance-id - The ID of the instance.
- instance-lifecycle - Indicates whether this is a Spot Instance or a Scheduled Instance (spot | scheduled).
- instance-state-code - The state of the instance, as a 16-bit unsigned integer. The high byte is used for internal purposes and should be ignored. The low byte is set based on the state represented. The valid values are: 0 (pending), 16 (running), 32 (shutting-down), 48 (terminated), 64 (stopping), and 80 (stopped).
- instance-state-name - The state of the instance (pending | running | shutting-down | terminated | stopping | stopped).
- instance-type - The type of instance (for example, t2.micro).
- instance.group-id - The ID of the security group for the instance.
- instance.group-name - The name of the security group for the instance.
- ip-address - The public IPv4 address of the instance.
- kernel-id - The kernel ID.
- key-name - The name of the key pair used when the instance was launched.
- launch-index - When launching multiple instances, this is the index for the instance in the launch group (for example, 0, 1, 2, and so on).
- launch-time - The time when the instance was launched.
- metadata-options.http-tokens - The metadata request authorization state (optional | required)
- metadata-options.http-put-response-hop-limit - The http metadata request put response hop limit (integer, possible values 1 to 64)
- metadata-options.http-endpoint - Enable or disable metadata access on http endpoint (enabled | disabled)
- monitoring-state - Indicates whether detailed monitoring is enabled (disabled | enabled).
- network-interface.addresses.private-ip-address - The private IPv4 address associated with the network interface.
- network-interface.addresses.primary - Specifies whether the IPv4 address of the network interface is the primary private IPv4 address.
- network-interface.addresses.association.public-ip - The ID of the association of an Elastic IP address (IPv4) with a network interface.
- network-interface.addresses.association.ip-owner-id - The owner ID of the private IPv4 address associated with the network interface.
- network-interface.association.public-ip - The address of the Elastic IP address (IPv4) bound to the network interface.
- network-interface.association.ip-owner-id - The owner of the Elastic IP address (IPv4) associated with the network interface.
- network-interface.association.allocation-id - The allocation ID returned when you allocated the Elastic IP address (IPv4) for your network interface.
- network-interface.association.association-id - The association ID returned when the network interface was associated with an IPv4 address.
- network-interface.attachment.attachment-id - The ID of the interface attachment.
- network-interface.attachment.instance-id - The ID of the instance to which the network interface is attached.
- network-interface.attachment.instance-owner-id - The owner ID of the instance to which the network interface is attached.
- network-interface.attachment.device-index - The device index to which the network interface is attached.
- network-interface.attachment.status - The status of the attachment (attaching | attached | detaching | detached).
- network-interface.attachment.attach-time - The time that the network interface was attached to an instance.
- network-interface.attachment.delete-on-termination - Specifies whether the attachment is deleted when an instance is terminated.
- network-interface.availability-zone - The Availability Zone for the network interface.
- network-interface.description - The description of the network interface.
- network-interface.group-id - The ID of a security group associated with the network interface.
- network-interface.group-name - The name of a security group associated with the network interface.
- network-interface.ipv6-addresses.ipv6-address - The IPv6 address associated with the network interface.
- network-interface.mac-address - The MAC address of the network interface.
- network-interface.network-interface-id - The ID of the network interface.
- network-interface.owner-id - The ID of the owner of the network interface.
- network-interface.private-dns-name - The private DNS name of the network interface.
- network-interface.requester-id - The requester ID for the network interface.
- network-interface.requester-managed - Indicates whether the network interface is being managed by AWS.
- network-interface.status - The status of the network interface (available) | in-use).
- network-interface.source-dest-check - Whether the network interface performs source/destination checking. A value of true means that checking is enabled, and false means that checking is disabled. The value must be false for the network interface to perform network address translation (NAT) in your VPC.
- network-interface.subnet-id - The ID of the subnet for the network interface.
- network-interface.vpc-id - The ID of the VPC for the network interface.
- owner-id - The AWS account ID of the instance owner.
- placement-group-name - The name of the placement group for the instance.
- placement-partition-number - The partition in which the instance is located.
- platform - The platform. To list only Windows instances, use windows.
- private-dns-name - The private IPv4 DNS name of the instance.
- private-ip-address - The private IPv4 address of the instance.
- product-code - The product code associated with the AMI used to launch the instance.
- product-code.type - The type of product code (devpay | marketplace).
- ramdisk-id - The RAM disk ID.
- reason - The reason for the current state of the instance (for example, shows "User Initiated [date]" when you stop or terminate the instance). Similar to the state-reason-code filter.
- requester-id - The ID of the entity that launched the instance on your behalf (for example, AWS Management Console, Auto Scaling, and so on).
- reservation-id - The ID of the instance's reservation. A reservation ID is created any time you launch an instance. A reservation ID has a one-to-one relationship with an instance launch request, but can be associated with more than one instance if you launch multiple instances using the same launch request. For example, if you launch one instance, you get one reservation ID. If you launch ten instances using the same launch request, you also get one reservation ID.
- root-device-name - The device name of the root device volume (for example, /dev/sda1).
- root-device-type - The type of the root device volume (ebs | instance-store).
- source-dest-check - Indicates whether the instance performs source/destination checking. A value of true means that checking is enabled, and false means that checking is disabled. The value must be false for the instance to perform network address translation (NAT) in your VPC.
- spot-instance-request-id - The ID of the Spot Instance request.
- state-reason-code - The reason code for the state change.
- state-reason-message - A message that describes the state change.
- subnet-id - The ID of the subnet for the instance.
- tag:<key> - The key/value combination of a tag assigned to the resource. Use the tag key in the filter name and the tag value as the filter value. For example, to find all resources that have a tag with the key Owner and the value TeamA, specify tag:Owner for the filter name and TeamA for the filter value.
- tag-key - The key of a tag assigned to the resource. Use this filter to find all resources that have a tag with a specific key, regardless of the tag value.
- tenancy - The tenancy of an instance (dedicated | default | host).
- virtualization-type - The virtualization type of the instance (paravirtual | hvm).
- vpc-id - The ID of the VPC that the instance is running in.
:instance_ids (Array<String>) —
The instance IDs.

Default: Describes all your instances.
:dry_run (Boolean) —
Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Returns:

(Instance::Collection)

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 520

def instances(options = {})
  batches = Enumerator.new do |y|
    options = Aws::Util.deep_merge(options, filters: [{
      name: "placement-group-name",
      values: [@name]
    }])
    resp = @client.describe_instances(options)
    resp.each_page do |page|
      batch = []
      page.data.reservations.each do |r|
        r.instances.each do |i|
          batch << Instance.new(
            id: i.instance_id,
            data: i,
            client: @client
          )
        end
      end
      y.yield(batch)
    end
  end
  Instance::Collection.new(batches)
end

#load ⇒ `self` Also known as: reload

Loads, or reloads #data for the current Aws::EC2::PlacementGroup. Returns self making it possible to chain methods.

placement_group.reload.data

Returns:

(self)

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 82

def load
  resp = @client.describe_placement_groups(group_names: [@name])
  @data = resp.placement_groups[0]
  self
end

#name ⇒ `String` Also known as: group_name

Returns:

(String)



33
34
35

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 33

def name
  @name
end

#partition_count ⇒ `Integer`

The number of partitions. Valid only if strategy is set to partition.

Returns:

(Integer)



53
54
55

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 53

def partition_count
  data[:partition_count]
end

#state ⇒ `String`

The state of the placement group.

Returns:

(String)



40
41
42

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 40

def state
  data[:state]
end

#strategy ⇒ `String`

The placement strategy.

Returns:

(String)



46
47
48

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 46

def strategy
  data[:strategy]
end

#tags ⇒ `Array<Types::Tag>`

Any tags applied to the placement group.

Returns:

(Array<Types::Tag>)



65
66
67

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 65

def tags
  data[:tags]
end

#wait_until(options = {}) {|resource| ... } ⇒ `Resource`

Deprecated.

Use [Aws::EC2::Client] #wait_until instead

Note:

The waiting operation is performed on a copy. The original resource remains unchanged.

Waiter polls an API operation until a resource enters a desired state.

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

attempts attempt in seconds invoked before each attempt invoked before each wait

Parameters:

options (Hash) (defaults to: {}) —
a customizable set of options

Options Hash (options):

:max_attempts (Integer) — default: 10 —
Maximum number of
:delay (Integer) — default: 10 —
Delay between each
:before_attempt (Proc) — default: nil —
Callback
:before_wait (Proc) — default: nil —
Callback

Yield Parameters:

resource (Resource) —
to be used in the waiting condition.

Returns:

(Resource) —
if the waiter was successful

Raises:

(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.
(Aws::Waiters::Errors::UnexpectedError) —
Raised when an error is encountered while polling for a resource that is not expected.
(NotImplementedError) —
Raised when the resource does not

# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/placement_group.rb', line 184

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

Class: Aws::EC2::PlacementGroup

Defined Under Namespace

Read-Only Attributes collapse

Actions collapse

Associations collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ PlacementGroup #initialize(options = {}) ⇒ PlacementGroup

Instance Method Details

#client ⇒ Client

#data ⇒ Types::PlacementGroup

#data_loaded? ⇒ Boolean

#delete(options = {}) ⇒ EmptyStructure

#group_id ⇒ String

#instances(options = {}) ⇒ Instance::Collection

#load ⇒ self Also known as: reload

#name ⇒ String Also known as: group_name

#partition_count ⇒ Integer

#state ⇒ String

#strategy ⇒ String

#tags ⇒ Array<Types::Tag>

#wait_until(options = {}) {|resource| ... } ⇒ Resource

Basic Usage

Example

Configuration

Callbacks

Handling Errors

#initialize(name, options = {}) ⇒ `PlacementGroup` #initialize(options = {}) ⇒ `PlacementGroup`

#client ⇒ `Client`

#data ⇒ `Types::PlacementGroup`

#data_loaded? ⇒ `Boolean`

#delete(options = {}) ⇒ `EmptyStructure`

#group_id ⇒ `String`

#instances(options = {}) ⇒ `Instance::Collection`

#load ⇒ `self` Also known as: reload

#name ⇒ `String` Also known as: group_name

#partition_count ⇒ `Integer`

#state ⇒ `String`

#strategy ⇒ `String`

#tags ⇒ `Array<Types::Tag>`

#wait_until(options = {}) {|resource| ... } ⇒ `Resource`