Class: Hygroscope::Stack

Inherits:
Object
  • Object
show all
Defined in:
lib/hygroscope/stack.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, region, profile) ⇒ Stack 



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# File 'lib/hygroscope/stack.rb', line 9

def initialize(name, region, profile)
  @name = name
  @parameters = {}
  @tags = {}
  @template = ''
  @capabilities = []
  @timeout = 15
  @on_failure = 'DO_NOTHING'

  @region = region
  @profile = profile
  @credentials = Aws::SharedCredentials.new(profile_name: @profile)
  @client = Aws::CloudFormation::Client.new(region: @region, credentials: @credentials)
end

Instance Attribute Details

#capabilities=(value) ⇒ Object (writeonly)

Sets the attribute capabilities



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# File 'lib/hygroscope/stack.rb', line 6

def capabilities=(value)
  @capabilities = value
end

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/hygroscope/stack.rb', line 7

def client
  @client
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/hygroscope/stack.rb', line 5

def name
  @name
end

#on_failure=(value) ⇒ Object (writeonly)

Sets the attribute on_failure



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# File 'lib/hygroscope/stack.rb', line 6

def on_failure=(value)
  @on_failure = value
end

#parameters ⇒ Object

Returns the value of attribute parameters.



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# File 'lib/hygroscope/stack.rb', line 5

def parameters
  @parameters
end

#tags ⇒ Object

Returns the value of attribute tags.



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# File 'lib/hygroscope/stack.rb', line 5

def tags
  @tags
end

#template=(value) ⇒ Object (writeonly)

Sets the attribute template



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# File 'lib/hygroscope/stack.rb', line 6

def template=(value)
  @template = value
end

#timeout=(value) ⇒ Object (writeonly)

Sets the attribute timeout



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# File 'lib/hygroscope/stack.rb', line 6

def timeout=(value)
  @timeout = value
end

Instance Method Details

#create! ⇒ Object 



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# File 'lib/hygroscope/stack.rb', line 24

def create!
  stack_parameters = []
  @parameters.each do |k, v|
    stack_parameters << {
      parameter_key:   k,
      parameter_value: v.to_s
    }
  end

  stack_tags = []
  @tags.each do |k, v|
    stack_tags << {
      key:   k,
      value: v.to_s
    }
  end

  stack_opts = {
    stack_name:         @name,
    template_body:      @template,
    parameters:         stack_parameters,
    timeout_in_minutes: @timeout,
    on_failure:         @on_failure
  }

  stack_opts['capabilities'] = @capabilities unless @capabilities.empty?
  stack_opts['tags'] = stack_tags

  begin
    stack_id = @client.create_stack(stack_opts)
  rescue => e
    raise e
  end

  stack_id
end

#delete! ⇒ Object 



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# File 'lib/hygroscope/stack.rb', line 94

def delete!
  @client.delete_stack(stack_name: @name)
rescue => e
  raise e
end

#describe ⇒ Object 



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# File 'lib/hygroscope/stack.rb', line 100

def describe
  resp = @client.describe_stacks(stack_name: @name)
rescue => e
  raise e
else
  resp.stacks.first
end

#list_resources ⇒ Object 



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# File 'lib/hygroscope/stack.rb', line 108

def list_resources
  resp = @client.describe_stack_resources(stack_name: @name)
rescue => e
  raise e
else
  resources = []
  resp.stack_resources.each do |r|
    resources << {
      name:   r.logical_resource_id,
      type:   r.resource_type,
      status: r.resource_status
    }
  end

  resources
end

#update! ⇒ Object 



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# File 'lib/hygroscope/stack.rb', line 61

def update!
  stack_parameters = []
  @parameters.each do |k, v|
    stack_parameters << if v == 'HYGROSCOPE_USE_PREVIOUS_VALUE'
                          {
                            parameter_key:      k,
                            use_previous_value: true
                          }
                        else
                          {
                            parameter_key:   k,
                            parameter_value: v.to_s
                          }
                        end
  end

  stack_opts = {
    stack_name:    @name,
    template_body: @template,
    parameters:    stack_parameters
  }

  stack_opts['capabilities'] = @capabilities unless @capabilities.empty?

  begin
    stack_id = @client.update_stack(stack_opts)
  rescue => e
    raise e
  end

  stack_id
end