遭遇している問題

Serverless Frameworkを使用して作成したAWS Lambda関数でvendor/bundle以下にインストールしているGemが読み込まれません。。。

環境

bash
1$ sls -v
2Framework Core: 1.51.0
3Plugin: 1.3.9
4SDK: 2.1.0

やったこと

bash
1$ sls create -t aws-ruby -p ruby-at-lambda-test
2$ cd ruby-at-lambda-test
3$ rbenv local 2.5.0
4$ bundle init

Gemfile

ruby
1# frozen_string_literal: true
2
3source "https://rubygems.org"
4
5git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
6
7gem 'bcrypt'

bash
1$ bundle install
2$ bundle install --deployment

handler.rb

ruby
1require 'json'
2require 'bcrypt'
3
4def hello(event:, context:)
5  password = BCrypt::Password::create('password')
6
7  {
8    statusCode: 200,
9    body: {
10      password: password
11    }.to_json
12  }
13
14end

bash
1$ sls deploy
2$ sls invoke -f hello
3# エラーが起きる
4{
5    "errorMessage": "cannot load such file -- bcrypt",
6    "errorType": "Init<LoadError>",
7    "stackTrace": [
8        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
9        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
10        "/var/task/handler.rb:2:in `<top (required)>'",
11        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
12        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'"
13    ]
14}

試したこと

`Bundler.require`を追加

diff
1+ require 'bundler'
2require 'json'
3- require 'bcrypt'
4+ Bundler.require
5
6def hello(event:, context:)
7  password = BCrypt::Password::create('password')
8
9  {
10    statusCode: 200,
11    body: {
12      password: password
13    }.to_json
14  }
15
16end

bash
1$ sls deploy
2$ sls invoke -f hello
3{
4    "errorMessage": "Could not find bcrypt-3.1.13 in any of the sources",
5    "errorType": "Init<Bundler::GemNotFound>",
6    "stackTrace": [
7        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:87:in `block in materialize'",
8        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `map!'",
9        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `materialize'",
10        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:170:in `specs'",
11        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:237:in `specs_for'",
12        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:226:in `requested_specs'",
13        "/var/runtime/gems/bundler-2.0.1/lib/bundler/runtime.rb:108:in `block in definition_method'",
14        "/var/runtime/gems/bundler-2.0.1/lib/bundler/runtime.rb:20:in `setup'",
15        "/var/runtime/gems/bundler-2.0.1/lib/bundler.rb:107:in `setup'",
16        "/var/runtime/gems/bundler-2.0.1/lib/bundler.rb:114:in `require'",
17        "/var/task/handler.rb:3:in `<top (required)>'",
18        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
19        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'"
20    ]
21}

`require 'bundler/setup'`を追加

diff
1+ require 'bundler/setup'
2require 'json'
3require 'bcrypt'
4
5def hello(event:, context:)
6  password = BCrypt::Password::create('password')
7
8  {
9    statusCode: 200,
10    body: {
11      password: password
12    }.to_json
13  }
14
15end

bash
1$ sls deploy
2$ sls invoke -f hello
3{
4    "errorMessage": "Could not find bcrypt-3.1.13 in any of the sources",
5    "errorType": "Init<Bundler::GemNotFound>",
6    "stackTrace": [
7        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:87:in `block in materialize'",
8        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `map!'",
9        "/var/runtime/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `materialize'",
10        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:170:in `specs'",
11        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:237:in `specs_for'",
12        "/var/runtime/gems/bundler-2.0.1/lib/bundler/definition.rb:226:in `requested_specs'",
13        "/var/runtime/gems/bundler-2.0.1/lib/bundler/runtime.rb:108:in `block in definition_method'",
14        "/var/runtime/gems/bundler-2.0.1/lib/bundler/runtime.rb:20:in `setup'",
15        "/var/runtime/gems/bundler-2.0.1/lib/bundler.rb:107:in `setup'",
16        "/var/runtime/gems/bundler-2.0.1/lib/bundler/setup.rb:20:in `<top (required)>'",
17        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
18        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
19        "/var/task/handler.rb:1:in `<top (required)>'",
20        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
21        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'"
22    ]
23}

`$LOAD_PATH`を追加

diff
1+ $LOAD_PATH.unshift('./vendor/bundle/ruby/2.6.0/gems/bcrypt-3.1.13/lib')
2require 'json'
3require 'bcrypt'
4
5def hello(event:, context:)
6  password = BCrypt::Password::create('password')
7
8  {
9    statusCode: 200,
10    body: {
11      password: password
12    }.to_json
13  }
14
15end

bash
1$ sls deploy
2$ sls invoke -f hello
3{
4    "errorMessage": "cannot load such file -- bcrypt_ext",
5    "errorType": "Init<LoadError>",
6    "stackTrace": [
7        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
8        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
9        "/var/task/vendor/bundle/ruby/2.6.0/gems/bcrypt-3.1.13/lib/bcrypt.rb:12:in `<top (required)>'",
10        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
11        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
12        "/var/task/handler.rb:3:in `<top (required)>'",
13        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'",
14        "/var/lang/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:54:in `require'"
15    ]
16}