Class: AWSCarb::UserData
- Inherits:
-
Object
- Object
- AWSCarb::UserData
- Includes:
- Singleton
- Defined in:
- lib/aws-carb/user_data.rb
Instance Attribute Summary collapse
-
#combined_user_data ⇒ Object
Returns the value of attribute combined_user_data.
Instance Method Summary collapse
- #combine_user_data(config, user_data_template_resolved) ⇒ Object
- #create(config) ⇒ Object
- #display ⇒ Object
- #resolve_template(config) ⇒ Object
Instance Attribute Details
#combined_user_data ⇒ Object
Returns the value of attribute combined_user_data.
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# File 'lib/aws-carb/user_data.rb', line 8 def combined_user_data @combined_user_data end |
Instance Method Details
#combine_user_data(config, user_data_template_resolved) ⇒ Object
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# File 'lib/aws-carb/user_data.rb', line 54 def combine_user_data(config, user_data_template_resolved) # if user_data_template and user_data are supplied then combine them, otherwise just # use user_data (which is empty by default) begin if config[:ec2].andand[:user_data] user_data = config[:ec2][:user_data] end if ! user_data_template_resolved.nil? and ! user_data.nil? puts "# combining user_data with user_data_template" user_data = user_data_template_resolved + user_data puts elsif ! user_data_template_resolved.nil? and user_data.nil? debug "# no raw user_data parsed in" user_data = user_data_template_resolved debug elsif user_data.nil? debug "# no user_data or user_data_template specified on the command line" user_data = "" debug else debug "# using user_data from cli argument" debug end rescue => e puts "# failed to combine user_data!" die e end return user_data end |
#create(config) ⇒ Object
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# File 'lib/aws-carb/user_data.rb', line 10 def create(config) user_data_template_resolved = resolve_template(config) @combined_user_data = combine_user_data(config, user_data_template_resolved) return @combined_user_data end |
#display ⇒ Object
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# File 'lib/aws-carb/user_data.rb', line 88 def display return if @combined_user_data.nil? puts "# --- beginning of user_data ---" puts begin puts @combined_user_data rescue => e puts "error: could not display user_data!" puts e end puts puts "# --- end of user_data ---" puts end |
#resolve_template(config) ⇒ Object
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# File 'lib/aws-carb/user_data.rb', line 16 def resolve_template(config) user_data_template = nil resolved_template = nil # FIXME: blank templates / empty templates / no template should work.. return nil unless config[:ec2] and config[:user_data_template][:file] ShellSpinner "# loading template", false do begin template_file = config[:user_data_template][:file] raise ArgumentError, "no such file: #{template_file}" unless File.exist?(template_file) user_data_template = File.read(template_file) rescue => e puts "# unable to open template file:" die e end end puts ShellSpinner "# parsing template" do begin resolved_template = Erubis::Eruby.new(user_data_template).result(config[:user_data_template_variables]) rescue => e puts "# failed to resolve variables in user_data_template:" die e end end puts return resolved_template end |