Aws-sdk gem'无法在远程服务器上加载此类文件'错误，但不能在本地加载

Question

This looks very similar to other questions but those solutions don't look like they apply here.

I can run my rails app in production mode locally, but on a remote server it fails with a message about the aws-sdk gem:

A LoadError occurred in images#index:

cannot load such file -- aws-sdk (You may need to install the aws-sdk gem)
app/controllers/images_controller.rb:9:in `block (2 levels) in index'

aws-sdk is being used by Paperclip 4.2.0 , which as of now only integrates with aws-sdk 1.x (no version 2). require 'aws-sdk' is not anywhere in my own code. Offending action code:

@images = @viewable.images
respond_to do |format|
  format.html {}
  #line 9:
  format.json {render json: @images, root: false, each_serializer: ImageSerializer}
end

What I've investigated so far follows.

Remote vs Local configuration

This seems most likely to be the cause. Perhaps some crucial config is not being found by my server such that aws-sdk can't be initialised. Here's how my config works:

S3 is configured according to this page . I followed the tutorial exactly except for a slight change to accommodate multiple production mode servers:

config/application.yml (values loaded to ENV by figaro ):

production:
  s3_bucket: 'mybucket'

development:
  s3_bucket: 'mybucket'

config/aws.yml (loaded automatically by aws-sdk):

development:
  access_key_id: AK_MY_ID
  secret_access_key: MYSECRET
production:
  access_key_id: AK_MY_ID
  secret_access_key: MYSECRET

Excerpt from config/environments/production.rb:

config.paperclip_defaults = {
  storage: :s3,
  s3_credentials: {
    bucket: ENV['s3_bucket']
  }
}

As far as I can tell symlinks for each yml file are being created correctly on each deploy:

deployer:~/apps/myapp/releases/20150505130826$ ll config/
lrwxrwxrwx  1 deployer deployer    53 May  5 13:08 application.yml -> /home/deployer/apps/myapp/shared/config/application.yml
lrwxrwxrwx  1 deployer deployer    45 May  5 13:08 aws.yml -> /home/deployer/apps/myapp/shared/config/aws.yml

Other things I've checked:

I doubt this controller is at fault

Other actions and controllers that access the same model also fail, and it fails on the remote server only.

Gem installation looks good

I have had no problems with other gems being lost during deployment over several months. There is no output from bundler saying that the install has failed. From capistrano deploy output:

 ~/.rvm/bin/rvm ruby-2.1.5@myapp do bundle install --path /home/deployer/apps/myapp/shared/bundle --without development test --deployment --quiet as deployer@myapp.com
DEBUG [c43674b8] Command: cd /home/deployer/apps/myapp/releases/20150505130826 && ~/.rvm/bin/rvm ruby-2.1.5@myapp do bundle install --path /home/deployer/apps/myapp/shared/bundle --without development test --deployment --quiet
INFO [c43674b8] Finished in 3.582 seconds with exit status 0 (successful).

From a shell I can inspect where the gem is installed:

~/apps/myapp/releases/20150505130826$ ~/.rvm/bin/rvm ruby-2.1.5@myapp do bundle show aws-sdk
/home/deployer/apps/myapp/shared/bundle/ruby/2.1.0/gems/aws-sdk-1.64.0

In the rails console:

2.1.5 :001 > Gem.loaded_specs['aws-sdk'].full_gem_path
 => "/home/deployer/apps/myapp/shared/bundle/ruby/2.1.0/gems/aws-sdk-1.64.0"

So it seems like Rails does know about the gem.

AWS credentials look good

Identical credentials work perfectly (in dev mode and in production mode) on my local machine. Credentials also work using s3cmd on the remote server. When I deliberately set them to incorrect values on my local machine, I get Access Denied errors from AWS, not the whole action falling over like this.

Where else can I look for problems?

Answer 1

I tried using the gem 'aws-sdk-v1' . It was work well for my aws project.