Class: Terrafying::Components::LetsEncrypt

Inherits:
Terrafying::Context
  • Object
show all
Includes:
CA
Defined in:
lib/terrafying/components/letsencrypt.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from CA

#<=>, #ca?, #create_keypair, #object_arn, #object_ident, #object_key, #object_name, #object_url, #reference_keypair

Constructor Details

#initialize ⇒ LetsEncrypt

Returns a new instance of LetsEncrypt.



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# File 'lib/terrafying/components/letsencrypt.rb', line 17

def initialize
  super
  @acme_providers = setup_providers
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/terrafying/components/letsencrypt.rb', line 9

def name
  @name
end

#source ⇒ Object (readonly)

Returns the value of attribute source.



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# File 'lib/terrafying/components/letsencrypt.rb', line 9

def source
  @source
end

Class Method Details

.create(name, bucket, options = {}) ⇒ Object 



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# File 'lib/terrafying/components/letsencrypt.rb', line 13

def self.create(name, bucket, options = {})
  LetsEncrypt.new.create name, bucket, options
end

Instance Method Details

#create(name, bucket, options = {}) ⇒ Object 



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# File 'lib/terrafying/components/letsencrypt.rb', line 35

def create(name, bucket, options = {})
  options = {
    prefix: '',
    provider: :staging,
    email_address: '[email protected]',
    public_certificate: false,
    curve: 'P384',
    use_external_dns: false
  }.merge(options)

  @name = name
  @bucket = bucket
  @prefix = options[:prefix]
  @acme_provider = @acme_providers[options[:provider]]
  @use_external_dns = options[:use_external_dns]

  provider :tls, {}

  resource :tls_private_key, "#{@name}-account",
           algorithm: 'ECDSA',
           ecdsa_curve: options[:curve]

  resource :acme_registration, "#{@name}-reg",
           provider: @acme_provider[:ref],
           account_key_pem: output_of(:tls_private_key, "#{@name}-account", 'private_key_pem'),
           email_address: options[:email_address]

  @account_key = output_of(:acme_registration, "#{@name}-reg", 'account_key_pem')

  resource :aws_s3_bucket_object, "#{@name}-account",
           bucket: @bucket,
           key: File.join('', @prefix, @name, 'account.key'),
           content: @account_key

  @ca_cert_acl = options[:public_certificate] ? 'public-read' : 'private'

  open(@acme_provider[:ca_cert], 'rb') do |cert|
    @ca_cert = cert.read
  end

  resource :aws_s3_bucket_object, object_name(@name, :cert),
           bucket: @bucket,
           key: object_key(@name, :cert),
           content: @ca_cert,
           acl: @ca_cert_acl

  @source = object_url(@name, :cert)

  self
end

#create_keypair_in(ctx, name, options = {}) ⇒ Object 



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# File 'lib/terrafying/components/letsencrypt.rb', line 86

def create_keypair_in(ctx, name, options = {})
  options = {
    common_name: name,
    organization: 'uSwitch Limited',
    validity_in_hours: 24 * 365,
    allowed_uses: %w[
      nonRepudiation
      digitalSignature
      keyEncipherment
    ],
    dns_names: [],
    ip_addresses: [],
    min_days_remaining: 21,
    curve: 'P384'
  }.merge(options)

  key_ident = "#{@name}-#{tf_safe(name)}"

  ctx.resource :tls_private_key, key_ident,
               algorithm: 'ECDSA',
               ecdsa_curve: options[:curve]

  ctx.resource :tls_cert_request, key_ident,
               key_algorithm: 'ECDSA',
               private_key_pem: output_of(:tls_private_key, key_ident, :private_key_pem),
               subject: {
                 common_name: options[:common_name],
                 organization: options[:organization]
               },
               dns_names: options[:dns_names],
               ip_addresses: options[:ip_addresses]

  cert_options = {}
  cert_options[:recursive_nameservers] = ['1.1.1.1:53', '8.8.8.8:53', '8.8.4.4:53'] if @use_external_dns

  ctx.resource :acme_certificate, key_ident, {
               provider: @acme_provider[:ref],
               account_key_pem: @account_key,
               min_days_remaining: options[:min_days_remaining],
               dns_challenge: {
                 provider: 'route53'
               },
               certificate_request_pem: output_of(:tls_cert_request, key_ident, :cert_request_pem)
             }.merge(cert_options)

  ctx.resource :aws_s3_bucket_object, "#{key_ident}-key",
               bucket: @bucket,
               key: File.join('', @prefix, @name, name, "${sha256(tls_private_key.#{key_ident}.private_key_pem)}", 'key'),
               content: output_of(:tls_private_key, key_ident, :private_key_pem)

  ctx.resource :aws_s3_bucket_object, "#{key_ident}-cert",
               bucket: @bucket,
               key: File.join('', @prefix, @name, name, "${sha256(acme_certificate.#{key_ident}.certificate_pem)}", 'cert'),
               content: output_of(:acme_certificate, key_ident, :certificate_pem).to_s + @ca_cert

  reference_keypair(ctx, name)
end

#setup_providers ⇒ Object 



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# File 'lib/terrafying/components/letsencrypt.rb', line 22

def setup_providers
  {
    staging: {
      ref: provider(:acme, alias: :staging, server_url: 'https://acme-staging-v02.api.letsencrypt.org/directory'),
      ca_cert: 'https://letsencrypt.org/certs/fakeleintermediatex1.pem'
    },
    live: {
      ref: provider(:acme, alias: :live, server_url: 'https://acme-v02.api.letsencrypt.org/directory'),
      ca_cert: 'https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem.txt'
    }
  }
end