Module: VScripts::AWS::EC2

Included in:
VScripts::AWS
Defined in:
lib/vscripts/aws/ec2.rb

Overview

AWS Elastic Compute Cloud

Instance Method Summary collapse

Instance Method Details

#all_tags ⇒ AWS::EC2::ResourceTagCollection

Returns Tags collection.

Returns:

  • (AWS::EC2::ResourceTagCollection) —

    Tags collection



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# File 'lib/vscripts/aws/ec2.rb', line 21

def all_tags
  instance.tags
end

#create_tag(resource, key, value) ⇒ AWS::EC2::Tag

Returns Creates an EC2 Tag.

Returns:

  • (AWS::EC2::Tag) —

    Creates an EC2 Tag



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# File 'lib/vscripts/aws/ec2.rb', line 31

def create_tag(resource, key, value)
  ec2.tags.create(resource, key, value)
end

#ec2 ⇒ Object

Load AWS SDK for EC2



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# File 'lib/vscripts/aws/ec2.rb', line 10

def ec2
  ::AWS::EC2.new(region: region)
end

#functional_instances ⇒ Object

@return Lists instances that are not terminated



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# File 'lib/vscripts/aws/ec2.rb', line 56

def functional_instances
  named_instances.map do |named_instance|
    named_instance if [:running, :shutting_down, :stopping, :stopped]
      .include?(named_instance.status)
  end
end

#instance ⇒ Object

Get instance object



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# File 'lib/vscripts/aws/ec2.rb', line 15

def instance
  check_instance
  ec2.instances[instance_id]
end

#name ⇒ Object

Looks for the value of the ‘Name’ tag for the given instance



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# File 'lib/vscripts/aws/ec2.rb', line 45

def name
  all_tags_hash['Name']
end

#named_instances ⇒ Object

@return Lists instances that have a ‘Name’ tag



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# File 'lib/vscripts/aws/ec2.rb', line 51

def named_instances
  ec2.instances.tagged('Name')
end

#similar_instances ⇒ Object

@return The ‘Name’ tag value except the local instance



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# File 'lib/vscripts/aws/ec2.rb', line 64

def similar_instances
  check_instance
  functional_instances.map do |functional_instance|
    next if functional_instance.id == instance_id
    functional_instance.tags['Name']
  end
end

#tag(key) ⇒ AWS::EC2::ResourceTagCollection

Returns Tags collection.

Returns:

  • (AWS::EC2::ResourceTagCollection) —

    Tags collection



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# File 'lib/vscripts/aws/ec2.rb', line 26

def tag(key)
  instance.tags[key]
end

#tags_without(list = []) ⇒ Object

Get a list of tags



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# File 'lib/vscripts/aws/ec2.rb', line 36

def tags_without(list = [])
  all_tags.each_with_object({}) do |tag, hash|
    key, value = tag[0], tag[1]
    hash[key] = value unless list.include? key
    hash
  end
end