Module: Terraspace::Plugin::Expander::Interface

Includes:
Friendly, InferProvider
Included in:
Generic
Defined in:
lib/terraspace/plugin/expander/interface.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Friendly

#friendly_name

Methods included from InferProvider

#provider

Instance Attribute Details

#mod ⇒ Object (readonly)

Returns the value of attribute mod.



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# File 'lib/terraspace/plugin/expander/interface.rb', line 14

def mod
  @mod
end

Instance Method Details

#cache_root ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 96

def cache_root
  Terraspace.cache_root
end

#env ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 83

def env
  Terraspace.env
end

#expand(props = {}) ⇒ Object

Handles list of objects. Calls expansion to handle each string expansion.



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# File 'lib/terraspace/plugin/expander/interface.rb', line 20

def expand(props={})
  props.each do |key, value|
    props[key] = expansion(value)
  end
  props
end

#expansion(string) ⇒ Object

Handles single string

Replaces variables denoted by colon in front with actual values. Example:

:REGION/:ENV/:BUILD_DIR/terraform.tfstate

>

us-west-2/dev/stacks/wordpress/terraform.tfstate



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# File 'lib/terraspace/plugin/expander/interface.rb', line 35

def expansion(string)
  return string unless string.is_a?(String) # in case of nil

  string = string.dup
  vars = string.scan(/:\w+/) # => [":ENV", ":BUILD_DIR"]
  vars.each do |var|
    string.gsub!(var, var_value(var))
  end
  strip(string)
end

#initialize(mod) ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 15

def initialize(mod)
  @mod = mod
end

#instance ⇒ Object Also known as: instance_option 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 91

def instance
  @mod.options[:instance] || ''
end

#mod_name ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 79

def mod_name
  @mod.name
end

#strip(string) ⇒ Object

remove leading and trailing common separators.

This is useful for when INSTANCE is not set. Note: BUILD_DIR includes INSTANCE

Examples:

cache_dir:

:CACHE_ROOT/:REGION/:ENV/:BUILD_DIR/

s3 backend key:

:REGION/:ENV/:BUILD_DIR/terraform.tfstate

workspace:

:MOD_NAME-:ENV-:REGION-:INSTANCE



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# File 'lib/terraspace/plugin/expander/interface.rb', line 65

def strip(string)
  string.sub(/^-+/,'').sub(/-+$/,'') # remove leading and trailing -
        .sub(%r{/+$},'') # only remove trailing / or else /home/ec2-user => home/ec2-user
end

#type_instance ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 87

def type_instance
  [type, instance].reject { |s| s.blank? }.join('-')
end

#var_value(name) ⇒ Object 



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# File 'lib/terraspace/plugin/expander/interface.rb', line 70

def var_value(name)
  name = name.sub(':','').downcase
  value = send(name)
  if name == "namespace" && Terraspace.config.layering.enable_names.expansion
    value = friendly_name(value)
  end
  value
end