`fetch'：找不到密钥：“S3_BUCKET_NAME” （KeyError）与paperclip / aws s3 / rails [英] `fetch': key not found: "S3_BUCKET_NAME" (KeyError) with paperclip/aws s3/rails

问题描述

我在rails（4.2.3）中使用'aws-sdk'，''找到'fetch'：key not found：S3_BUCKET_NAME（KeyError） 〜> 2.3'和paperclip，〜> 5.0.0

我通过终端在我的环境中设置了密钥并运行 heroku config 显示它们列出。

在我的config / environments / development.rb以及在我的config production.rb中，我都包含了：

  config.paperclip_defaults = {
存储:: s3，
 s3_credentials：{
存储桶：ENV.fetch（'S3_BUCKET_NAME'），
 access_key_id：ENV.fetch（'AWS_ACCESS_KEY_ID'），
 secret_access_key：ENV.fetch（'AWS_SECRET_ACCESS_KEY'），
 s3_region：ENV.fetch（'AWS_REGION'），
} 
 
  

我也在上面的代码中加入了我的user.rb模型，但为了

  has_attached_file：头像，
样式：{medium：300x300＃ ，thumb：100x100＃}，
：convert_options => {
：thumb => -quality 75 -strip}，
：storage => ：s3，
：s3_credentials => {
：bucket => ENV ['S3_BUCKET_NAME']，
：access_key_id => ENV ['AWS_ACCESS_KEY_ID']，
：secret_access_key => ENV ['AWS_SECRET_ACCESS_KEY']，
：region => ENV ['AWS_REGION'] 
}，
：path => ：filename。：extension，
＃：path => ：rails_root / public / system /：attachment /：id /：style /：filename，
：default_url => default_img.png
 
 validates_attachment_content_type：avatar，content_type：/\Aimage\/.*\/ 
  

我也将env vars包含在我的secrets.yml中：

 开发： 
 secret_key_base：817c07d41b8524495628fbe91fb1f0535ade65aa96a3fee379a8d16c29cc1f7b167f537442e547422ab17ee9700028a95896eb1c0717de06dfe7895d15ddb5ce 
 SECRET_KEY：sk_test_xxx 
 publishable_key：pk_test_xxx 
 access_key_id：XXX 
 secret_access_key：XXX 
 s3_bucket_name： '斗名' 
 
 test：
 secret_key_base：a38e71848a4d9bc63fa8dce4522add10a4931b10e6786f0cab6a9eb1643e271b992f52fa6eff672b0d03687003099c0632477dd26b246ac4e637c52c69ec4ab0 
 
＃不要在存储库中保留生产机密，
＃而是从环境中读取值。 
产量：
 secret_key_base：<％= ENV [SECRET_KEY_BASE]％> 
 secret_key：<％= ENV [SECRET_KEY]％> 
 publishable_key：<％= ENV [PUBLISHABLE_KEY]％> 
 access_key_id：<％= ENV ['AWS_ACCESS_KEY_ID']％> 
 secret_access_key：<％= ENV ['AWS_SECRET_ACCESS_KEY']％> 
 s3_bucket_name：<％= ENV [S3_BUCKET_NAME]％> 
  

虽然这可能不是必需的。在搜索结果页面上搜索与此错误相关的其他几篇文章，这些内容让我无法继续前进 - 是否有人对此问题有任何想法？

解决方案

'fetch'：找不到密钥：S3_BUCKET_NAME环境变量S3_BUCKET_NAME没有值。

在你的情况下，你正在使用Heroku。请按照以下链接中的说明操作。

对于Heroku： https://devcenter.heroku.com/articles/config-vars 。

如果您使用ENV ['variables']，您需要让他们在每一个环境中都能成立。测试，生产和发展。如果您正在使用PC，MAC或Linux进行开发，则需要确保设置了环境变量。

对于linux：
https：// www.digitalocean.com/community/tutorials/how-to-read-and-set-environmental-and-shell-variables-on-a-linux-vps

对于OSX：
我这样做和linux一样，我只是通过添加一行来将它们设置在我的〜/ .zshrc 中。如果你不使用zshell，那么在你的〜/ .bashrc 或〜/ .bash_profile 中添加一行。 / p>

  export ENV_VARIABLE_NAME =value
  

对于Windows：
我不知道如何，但我相信谷歌。

I am getting a 'fetch': key not found: "S3_BUCKET_NAME" (KeyError) error in rails (4.2.3) using 'aws-sdk', '~> 2.3' and "paperclip", "~> 5.0.0"

I have set the Keys in my environment via terminal and running heroku config shows them listed.

In both my config/environments/development.rb as well as in my config production.rb I have included:

config.paperclip_defaults = {
  storage: :s3,
  s3_credentials: {
    bucket: ENV.fetch('S3_BUCKET_NAME'),
    access_key_id: ENV.fetch('AWS_ACCESS_KEY_ID'),
    secret_access_key: ENV.fetch('AWS_SECRET_ACCESS_KEY'),
    s3_region: ENV.fetch('AWS_REGION'),
  }
}

I have also included the above code in my user.rb model, but for the sake of reference it looks like this in the model:

has_attached_file :avatar, 
    styles: { medium: "300x300#", thumb: "100x100#" },
    :convert_options => {
    :thumb => "-quality 75 -strip" },
    :storage => :s3,
    :s3_credentials => {
      :bucket => ENV['S3_BUCKET_NAME'],
      :access_key_id => ENV['AWS_ACCESS_KEY_ID'],
      :secret_access_key => ENV['AWS_SECRET_ACCESS_KEY'],
      :region => ENV['AWS_REGION']
    },
    :path => ":filename.:extension",
    # :path => ":rails_root/public/system/:attachment/:id/:style/:filename", 
    :default_url => "default_img.png"

    validates_attachment_content_type :avatar, content_type: /\Aimage\/.*\Z/

I have also included the env vars in my secrets.yml:

development:
  secret_key_base: 817c07d41b8524495628fbe91fb1f0535ade65aa96a3fee379a8d16c29cc1f7b167f537442e547422ab17ee9700028a95896eb1c0717de06dfe7895d15ddb5ce
  secret_key: sk_test_xxx
  publishable_key: pk_test_xxx
  access_key_id: xxx
  secret_access_key: xxx
  s3_bucket_name: 'bucket-name'

test:
  secret_key_base: a38e71848a4d9bc63fa8dce4522add10a4931b10e6786f0cab6a9eb1643e271b992f52fa6eff672b0d03687003099c0632477dd26b246ac4e637c52c69ec4ab0

# Do not keep production secrets in the repository,
# instead read values from the environment.
production:
  secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
  secret_key: <%= ENV["SECRET_KEY"] %>
  publishable_key: <%= ENV["PUBLISHABLE_KEY"] %>
  access_key_id: <%= ENV['AWS_ACCESS_KEY_ID'] %>
  secret_access_key: <%= ENV['AWS_SECRET_ACCESS_KEY'] %>
  s3_bucket_name: <%= ENV["S3_BUCKET_NAME"]%>

although that may not have been required. Googling around and going through the few other posts on SO related to this error have given me little to go on - does anybody have any ideas on what the issue may be?

解决方案

'fetch': key not found: "S3_BUCKET_NAME" means that the environment variables S3_BUCKET_NAME does not have a value.

In your case you are using Heroku. Follow the instructions in the link below.

For Heroku: https://devcenter.heroku.com/articles/config-vars.

If you are using ENV['variables'] you need to have them set in every environment. test, production and development. If you are developing on a PC, MAC, or Linux you need to make sure the environment variables are set.

For linux: https://www.digitalocean.com/community/tutorials/how-to-read-and-set-environmental-and-shell-variables-on-a-linux-vps

For OSX: I do it the same was as linux, I just set them in my ~/.zshrc by adding a line like this. If you aren't using zshell then add a line to your ~/.bashrc or ~/.bash_profile.

export ENV_VARIABLE_NAME="value"

For Windows: I don't know how, but I am sure google does.

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