Class: Kiel::Implementation

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

Overview

:nodoc: all

Instance Method Summary collapse

Constructor Details

#initialize(defaults) ⇒ Implementation

Returns a new instance of Implementation.



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# File 'lib/kiel.rb', line 28

def initialize defaults
    @defaults = defaults.dup
end

Instance Method Details

#add_versions(steps) ⇒ Object 



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# File 'lib/kiel.rb', line 120

def add_versions steps
    steps.collect() do | step | 
        name = step[ :scm_name ] == '*' ? '*' : expand_path( step[ :scm_name ] )
        step.merge( version: scm.version( name ) ) 
    end
end

#create_task(step, steps) ⇒ Object

this function creates the rake task, by first checking if the image already exists and then starting the base image and running the setup step



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# File 'lib/kiel.rb', line 85

def create_task step, steps
    task = Rake::Task::define_task( step[ :task ] => steps.collect{ | s | s[ :task ] } ) do | task, arguments |
        tags = build_tags step, steps

        if cloud.exists? tags
            puts "image \'#{step[ :name ]}\' already up to date and exists:"
            tags.each{ | key, value | puts "\'#{key}\' => \'#{value}\'" }                    
        else
            puts "starting instance for: \'#{step[ :name ]}\'"
            instance = cloud.start_instance initial_image_id( step, steps )
            puts "instance for: \'#{step[ :name ]}\' started."

            begin
                dns_name    = cloud.dns_name instance
                expand_step = step.dup.merge( setup_name: expand_path( step[ :setup_name ] ) )
                expand_step[ :tags ] = tags 
                
                puts "excuting installation for: \'#{step[ :name ]}\'"
                setup.execute expand_step, dns_name  
                puts "installation for: \'#{step[ :name ]}\' done."

                puts "storing image for: \'#{step[ :name ]}\'"
                cloud.store_image instance, tags
                puts "image for: \'#{step[ :name ]}\' stored"
            rescue
                cloud.stop_instance instance
                raise
            end                     
        end                     
    end

    task.add_description( step[ :description ] ) if step.key? :description
    task
end

#expand_path(file_name) ⇒ Object

fully expands the given file_name or array of file names



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# File 'lib/kiel.rb', line 55

def expand_path file_name
    @defaults[ :root_dir ] ||= Dir.pwd
    
    if file_name.kind_of? Array 
        file_name.collect { |f| File.expand_path f, @defaults[ :root_dir ] }
    else                
        File.expand_path file_name, @defaults[ :root_dir ]
    end
end