Class: Terraspace::Compiler::Strategy::Tfvar

Inherits:
Object
  • Object
show all
Extended by:
Memoist
Defined in:
lib/terraspace/compiler/strategy/tfvar/layer.rb,
lib/terraspace/compiler/strategy/tfvar.rb,
lib/terraspace/compiler/strategy/tfvar/rb.rb,
lib/terraspace/compiler/strategy/tfvar/base.rb,
lib/terraspace/compiler/strategy/tfvar/tfvars.rb

Overview

Layers in order

Name / Pattern                 | Example
-------------------------------|---------------
base                           | base.tfvars
env                            | dev.tfvars
region/base                    | us-west-2/base.tfvars (provider specific)
region/env                     | us-west-2/dev.tfvars (provider specific)
namespace/base                 | 112233445566/base.tfvars (provider specific)
namespace/env                  | 112233445566/dev.tfvars (provider specific)
namespace/region/base          | 112233445566/us-west-2/base.tfvars (provider specific)
namespace/region/env           | 112233445566/us-west-2/dev.tfvars (provider specific)
provider/base                  | aws/base.tfvars (provider specific)
provider/env                   | aws/dev.tfvars (provider specific)
provider/region/base           | aws/us-west-2/base.tfvars (provider specific)
provider/region/env            | aws/us-west-2/dev.tfvars (provider specific)
provider/namespace/base        | aws/112233445566/base.tfvars (provider specific)
provider/namespace/env         | aws/112233445566/dev.tfvars (provider specific)
provider/namespace/region/base | aws/112233445566/us-west-2/base.tfvars (provider specific)
provider/namespace/region/env  | aws/112233445566/us-west-2/dev.tfvars (provider specific)

namespace and region depends on the provider. Here an example of the mapping:

          | AWS     | Azure        | Google
----------|---------|--------------|-------
namespace | account | subscription | project
region    | region  | location     | region

Defined Under Namespace

Classes: Base, Layer, Rb, Tfvars

Instance Method Summary collapse

Constructor Details

#initialize(mod) ⇒ Tfvar

Returns a new instance of Tfvar.



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 5

def initialize(mod)
  @mod = mod
  @order = 0
end

Instance Method Details

#layer_paths ⇒ Object 



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 26

def layer_paths
  Layer.new(@mod).paths
end

#ordered_name(layer_path) ⇒ Object

Tact on number to ensure that tfvars will be processed in desired order. Also name auto.tfvars so it will automatically load



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 33

def ordered_name(layer_path)
  @order += 1
  prefix = @order.to_s
  # add leading 0 when more than 10 layers
  prefix = prefix.rjust(2, '0') if layer_paths.size > 9
  name = "#{prefix}-#{tfvar_name(layer_path)}"
  name.sub('.tfvars','.auto.tfvars')
      .sub('.rb','.auto.tfvars.json')
end

#run(write: true) ⇒ Object 



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 10

def run(write: true)
  layer_paths.each do |layer_path|
    ext = File.extname(layer_path).sub('.','')
    klass = strategy_class(ext)
    next unless klass

    strategy = klass.new(@mod, layer_path)
    content = strategy.run

    next unless write
    dest_name = ordered_name(layer_path)
    writer = Terraspace::Compiler::Writer.new(@mod, dest_name: dest_name)
    writer.write(content)
  end
end

#strategy_class(ext) ⇒ Object 



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 53

def strategy_class(ext)
  "Terraspace::Compiler::Strategy::Tfvar::#{ext.camelize}".constantize
rescue NameError
end

#tfvar_name(layer_path) ⇒ Object 



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# File 'lib/terraspace/compiler/strategy/tfvar.rb', line 43

def tfvar_name(layer_path)
  if layer_path.include?('/tfvars/')
    name = layer_path.sub(%r{.*/tfvars/},'').gsub('/','-')
    name = "project-#{name}" if layer_path.include?("config/terraform/tfvars")
    name
  else
    File.basename(layer_path)
  end
end