Class: Commands::ModifyInstanceGroupCommand

Inherits:
AbstractInstanceGroupCommand show all
Defined in:
lib/commands.rb

Instance Attribute Summary collapse

Attributes inherited from AbstractInstanceGroupCommand

#instance_count, #instance_group_id, #instance_group_name, #instance_role, #instance_type

Attributes inherited from Command

#arg, #commands, #description, #logger, #name

Instance Method Summary collapse

Methods inherited from AbstractInstanceGroupCommand

#default_instance_group_name, #initialize, #instance_group, #require_singleton_array

Methods inherited from Command

#get_field, #has_value, #have, #initialize, #option, #require, #require_single_jobflow, #resolve

Constructor Details

This class inherits a constructor from Commands::AbstractInstanceGroupCommand

Instance Attribute Details

#jobflow_detail ⇒ Object

Returns the value of attribute jobflow_detail.



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# File 'lib/commands.rb', line 1115

def jobflow_detail
  @jobflow_detail
end

#jobflow_id ⇒ Object

Returns the value of attribute jobflow_id.



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# File 'lib/commands.rb', line 1115

def jobflow_id
  @jobflow_id
end

Instance Method Details

#enact(client) ⇒ Object 



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# File 'lib/commands.rb', line 1129

def enact(client)
  if get_field(:instance_group_id) == nil then
    self.jobflow_id = require_single_jobflow
    self.jobflow_detail = client.describe_jobflow_with_id(self.jobflow_id)
    matching_instance_groups = 
      jobflow_detail['Instances']['InstanceGroups'].select { |x| x['InstanceRole'] == instance_role }
    require_singleton_array(matching_instance_groups, "instance group with role #{instance_role}")
    self.instance_group_id = matching_instance_groups.first['InstanceGroupId']
  end
  options = {
    'InstanceGroups' => [{ 
      'InstanceGroupId' => get_field(:instance_group_id), 
      'InstanceCount' => get_field(:instance_count) 
    }]
  }
  client.modify_instance_groups(options)
  ig_modified = nil
  if get_field(:instance_role) != nil then
    ig_modified = get_field(:instance_role)
  else
    ig_modified = get_field(:instance_group_id)
  end
  logger.puts("Modified instance group " + ig_modified)
end

#validate ⇒ Object 



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# File 'lib/commands.rb', line 1117

def validate
  if get_field(:instance_group_id) == nil then
    if ! ["CORE", "TASK"].include?(get_field(:instance_role)) then
      raise RuntimeError, "Invalid argument to #{name}, #{@arg} is not valid"
    end
    if get_field(:jobflow, []).size == 0 then
      raise RuntimeError, "You must specify a jobflow when using #{name} and specifying a role #{instance_role}"
    end          
  end
  require(:instance_count, "Option #{name} is missing --instance-count")
end