Class: Jarbs::Lambda

Inherits:
Object
  • Object
show all
Includes:
Commander::UI, CrashReporter::DSL
Defined in:
lib/jarbs/lambda.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options) ⇒ Lambda

Returns a new instance of Lambda.



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# File 'lib/jarbs/lambda.rb', line 18

def initialize(name, options)
  @options = options

  @function = FunctionDefinition.new(name, @options.env)

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

Instance Attribute Details

#function ⇒ Object

Returns the value of attribute function.



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# File 'lib/jarbs/lambda.rb', line 16

def function
  @function
end

Instance Method Details

#create ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 44

def create
  role = @options[:role] || ask("IAM role for function: ")

  say "Creating #{@function.env_name} on Lambda..."

  capture_errors do
    @client.create_function function_name: @function.env_name,
                            runtime: 'nodejs',
                            handler: 'index.handler',
                            role: role,
                            memory_size: 128,
                            timeout: 10,
                            code: { zip_file: @package }
  end

  say_ok "Complete!"
end

#delete ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 73

def delete
  res = @client.delete_function function_name: @function.env_name
  say_ok "Removed #{@function.env_name}." if res.successful?
end

#deploy ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 40

def deploy
  deployed? ? update : create
end

#deployed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jarbs/lambda.rb', line 101

def deployed?
  true if info
rescue Aws::Lambda::Errors::ResourceNotFoundException => e
  false
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jarbs/lambda.rb', line 107

def exists?
  Dir.exists? function.source_path
end

#generate ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 27

def generate
  FunctionGenerator.new(@function).generate
end

#info ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 78

def info
  @client.get_function(function_name: @function.env_name)
end

#invoke(payload = "") ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 82

def invoke(payload="")
  payload = JSON.generate(payload) unless payload.is_a? String

  say "Invoking with:\n\n#{payload}\n\n"

  capture_errors do
    resp = @client.invoke function_name: @function.env_name,
                          log_type: 'Tail',
                          payload: payload


    if resp.successful?
      say_ok Base64.decode64(resp.data.log_result)
    else
      say_error resp.error.message
    end
  end
end

#prepare ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 31

def prepare
  node = NodeBuild.new(@function)

  node.npm_build
  @package = Packager.new(@function).package
ensure
  node.clean
end

#update ⇒ Object 



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# File 'lib/jarbs/lambda.rb', line 62

def update
  say "Updating #{@function.env_name} on Lambda..."

  capture_errors do
    @client.update_function_code function_name: @function.env_name,
                                 zip_file: @package
  end

  say_ok "Complete!"
end