我有一个上传横幅和缩略图的博客。我最初将其设置为使用carrierwave gem 上传到本地目录，我想尝试使用digitalocean 空间，因为该应用程序已部署到digitalocean 应用程序平台。我可以让它在 localhost:3000 上运行，但是当我将它部署到 digitalocean 时，它会不断恢复到以前的部署，说运行状况检查失败但不是真正的错误。
我决定将它部署到heroku，因为我能够得到实际的错误。这是我从heroku得到的当前错误：
2021-03-09T22:41:10.466080+00:00 heroku[web.1]: Starting process with command `bin/rails server -p ${PORT:-5000} -e production`
2021-03-09T22:41:20.121636+00:00 app[web.1]: => Booting Puma
2021-03-09T22:41:20.121679+00:00 app[web.1]: => Rails 6.1.3 application starting in production
2021-03-09T22:41:20.121679+00:00 app[web.1]: => Run `bin/rails server --help` for more startup options
2021-03-09T22:41:31.105804+00:00 app[web.1]: [fog][WARNING] Unable to fetch credentials: Connection refused - connect(2) for 169.254.169.254:80 (Errno::ECONNREFUSED)
2021-03-09T22:41:31.108732+00:00 app[web.1]: Exiting
2021-03-09T22:41:31.110380+00:00 app[web.1]: /app/vendor/bundle/ruby/3.0.0/gems/fog-core-2.2.3/lib/fog/core/service.rb:244:in `validate_options': Missing required arguments: aws_access_key_id, aws_secret_access_key (ArgumentError)
2021-03-09T22:41:31.110386+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/fog-core-2.2.3/lib/fog/core/service.rb:268:in `handle_settings'
2021-03-09T22:41:31.110391+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/fog-core-2.2.3/lib/fog/core/service.rb:98:in `new'
2021-03-09T22:41:31.110426+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/fog-core-2.2.3/lib/fog/core/services_mixin.rb:30:in `new'
2021-03-09T22:41:31.110427+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/carrierwave-2.2.0/lib/carrierwave/storage/fog.rb:68:in `eager_load'
2021-03-09T22:41:31.110431+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/carrierwave-2.2.0/lib/carrierwave.rb:77:in `block in <class:Railtie>'
2021-03-09T22:41:31.110435+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:68:in `block in execute_hook'
2021-03-09T22:41:31.110467+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
2021-03-09T22:41:31.110472+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
2021-03-09T22:41:31.110473+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
2021-03-09T22:41:31.110508+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:51:in `each'
2021-03-09T22:41:31.111096+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
2021-03-09T22:41:31.111100+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/application/finisher.rb:129:in `block in <module:Finisher>'
2021-03-09T22:41:31.111101+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/initializable.rb:32:in `instance_exec'
2021-03-09T22:41:31.111127+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/initializable.rb:32:in `run'
2021-03-09T22:41:31.111132+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/initializable.rb:61:in `block in run_initializers'
2021-03-09T22:41:31.111132+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:228:in `block in tsort_each'
2021-03-09T22:41:31.111164+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
2021-03-09T22:41:31.111168+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:431:in `each_strongly_connected_component_from'
2021-03-09T22:41:31.111169+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:349:in `block in each_strongly_connected_component'
2021-03-09T22:41:31.111201+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:347:in `each'
2021-03-09T22:41:31.111202+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:347:in `call'
2021-03-09T22:41:31.111772+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:347:in `each_strongly_connected_component'
2021-03-09T22:41:31.111777+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:226:in `tsort_each'
2021-03-09T22:41:31.111777+00:00 app[web.1]: from /app/vendor/ruby-3.0.0/lib/ruby/3.0.0/tsort.rb:205:in `tsort_each'
2021-03-09T22:41:31.111781+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/initializable.rb:60:in `run_initializers'
2021-03-09T22:41:31.111808+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/application.rb:384:in `initialize!'
2021-03-09T22:41:31.111809+00:00 app[web.1]: from /app/config/environment.rb:5:in `<main>'
2021-03-09T22:41:31.111813+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
2021-03-09T22:41:31.111839+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
2021-03-09T22:41:31.111844+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
2021-03-09T22:41:31.111844+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
2021-03-09T22:41:31.111845+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
2021-03-09T22:41:31.111845+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/zeitwerk-2.4.2/lib/zeitwerk/kernel.rb:34:in `require'
2021-03-09T22:41:31.111848+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/dependencies.rb:332:in `block in require'
2021-03-09T22:41:31.111851+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/dependencies.rb:299:in `load_dependency'
2021-03-09T22:41:31.111884+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.3/lib/active_support/dependencies.rb:332:in `require'
2021-03-09T22:41:31.112296+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:53:in `require_relative'
2021-03-09T22:41:31.112301+00:00 app[web.1]: from config.ru:3:in `block in <main>'
2021-03-09T22:41:31.112302+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `eval'
2021-03-09T22:41:31.112334+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `new_from_string'
2021-03-09T22:41:31.112339+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/builder.rb:105:in `load_file'
2021-03-09T22:41:31.112340+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/builder.rb:66:in `parse_file'
2021-03-09T22:41:31.112367+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:349:in `build_app_and_options_from_config'
2021-03-09T22:41:31.112368+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:249:in `app'
2021-03-09T22:41:31.112372+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:422:in `wrapped_app'
2021-03-09T22:41:31.112398+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:312:in `block in start'
2021-03-09T22:41:31.112403+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:379:in `handle_profiling'
2021-03-09T22:41:31.112809+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/rack-2.2.3/lib/rack/server.rb:311:in `start'
2021-03-09T22:41:31.112813+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/commands/server/server_command.rb:39:in `start'
2021-03-09T22:41:31.112841+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/commands/server/server_command.rb:144:in `block in perform'
2021-03-09T22:41:31.112845+00:00 app[web.1]: from <internal:kernel>:90:in `tap'
2021-03-09T22:41:31.112846+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/commands/server/server_command.rb:135:in `perform'
2021-03-09T22:41:31.112877+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/thor-1.1.0/lib/thor/command.rb:27:in `run'
2021-03-09T22:41:31.112881+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in `invoke_command'
2021-03-09T22:41:31.112882+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/thor-1.1.0/lib/thor.rb:392:in `dispatch'
2021-03-09T22:41:31.112912+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/command/base.rb:69:in `perform'
2021-03-09T22:41:31.114191+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/command.rb:50:in `invoke'
2021-03-09T22:41:31.114195+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/railties-6.1.3/lib/rails/commands.rb:18:in `<main>'
2021-03-09T22:41:31.114196+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
2021-03-09T22:41:31.114229+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
2021-03-09T22:41:31.114234+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
2021-03-09T22:41:31.114234+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
2021-03-09T22:41:31.114261+00:00 app[web.1]: from /app/vendor/bundle/ruby/3.0.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
2021-03-09T22:41:31.114262+00:00 app[web.1]: from bin/rails:5:in `<main>'
2021-03-09T22:41:31.238223+00:00 heroku[web.1]: Process exited with status 1
2021-03-09T22:41:31.311694+00:00 heroku[web.1]: State changed from starting to crashed
服务器启动后它崩溃说雾无法获取凭据。
这是我的初始化程序/carrierwave.rb 文件：
CarrierWave.configure do |config|
config.fog_credentials = {
provider: 'AWS', # required
aws_access_key_id: Rails.application.credentials.aws(:digitalocean_spaces_key), # required unless using use_iam_profile
aws_secret_access_key: Rails.application.credentials.aws(:digitalocean_spaces_secret), # required unless using use_iam_profile
use_iam_profile: true, # optional, defaults to false
region: 'nyc3', # optional, defaults to 'us-east-1'
host: 'nyc3.digitaloceanspaces.com', # optional, defaults to nil
endpoint: 'https://nyc3.digitaloceanspaces.com' # optional, defaults to nil
}
config.fog_directory = 'judo' # required
config.fog_public = true # optional, defaults to true
#config.fog_attributes = { cache_control: "public, max-age=#{365.days.to_i}" } # optional, defaults to {}
# For an application which utilizes multiple servers but does not need caches persisted across requests,
# uncomment the line :file instead of the default :storage. Otherwise, it will use AWS as the temp cache store.
# config.cache_storage = :file
end
这是carrierwave.rb文件的另一种尝试：
CarrierWave.configure do |config|
config.fog_credentials = {
provider: 'AWS', # required
digitalocean_spaces_key_id: Rails.application.credentials.digitalocean_spaces_key, # required unless using use_iam_profile
digitalocean_spaces_secret: Rails.application.credentials.digitalocean_spaces_secret,
digitalocean_spaces_bucket: Rails.application.credentials.digitalocean_spaces_bucket,
use_iam_profile: true, # optional, defaults to false
region: 'nyc3', # optional, defaults to 'us-east-1'
host: 'nyc3.digitaloceanspaces.com', # optional, defaults to nil
endpoint: 'https://nyc3.digitaloceanspaces.com' # optional, defaults to nil
}
config.fog_directory = 'judo' # required
config.fog_public = true # optional, defaults to true
#config.fog_attributes = { cache_control: "public, max-age=#{365.days.to_i}" } # optional, defaults to {}
# For an application which utilizes multiple servers but does not need caches persisted across requests,
# uncomment the line :file instead of the default :storage. Otherwise, it will use AWS as the temp cache store.
# config.cache_storage = :file
end
这是我的 credentials.yml 文件：
production:
digitalocean_spaces_key: <%= ENV["DIGITALOCEAN_SPACES_KEY"] %>
digitalocean_spaces_secret: <%= ENV["DIGITALOCEAN_SPACES_SECRET"] %>
digitalocean_spaces_bucket: <%= ENV["DIGITALOCEAN_SPACES_BUCKET"] %>
development:
digitalocean_spaces_key: my_key
digitalocean_spaces_secret: my_secret
digitalocean_spaces_bucket: judo
我在 digitalocean 上的应用程序中输入了空格键、秘密和存储桶作为应用程序级变量。
这是我的 uploaders/banner_uploader.rb 文件：
class BannerUploader < CarrierWave::Uploader::Base
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
#include CarrierWave::MiniMagick
# Choose what kind of storage to use for this uploader:
# storage :file
storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}"
end
# Provide a default URL as a default if there hasn't been a file uploaded:
# def default_url(*args)
# # For Rails 3.1+ asset pipeline compatibility:
# # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
#
# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
# end
# Process files as they are uploaded:
# process scale: [200, 300]
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
# version :thumb do
# process resize_to_fit: [50, 50]
# end
# Add an allowlist of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_allowlist
%w(jpg jpeg gif png)
end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
# def filename
# "something.jpg" if original_filename
# end
end
这是我的post.rb：
class Post < ApplicationRecord
belongs_to :user
has_many :comments, as: :commentable, dependent: :destroy
# Active Storage from Rails 5
#has_one_attached :thumbnail
#has_one_attached :banner
# Action Text from Rails 6
has_rich_text :body
mount_uploader :banner, BannerUploader
validates :title, length: { minimum: 5 }
validates :body, length: { minimum: 25 }
self.per_page = 10
extend FriendlyId
friendly_id :title, use: :slugged
end
这是我的 Gemfile：
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby '3.0.0'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails', branch: 'main'
gem 'rails', '~> 6.1.3'
# Use Puma as the app server
gem 'puma', '~> 5.0'
# Use SCSS for stylesheets
gem 'sass-rails', '>= 6'
# Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
gem 'webpacker', '~> 5.0'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.7'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use Active Model has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Active Storage variant
gem 'image_processing', '~> 1.2'
# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.4.4', require: false
group :development, :test do
# Use sqlite3 as the database for Active Record
gem 'sqlite3', '~> 1.4'
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end
group :development do
# Access an interactive console on exception pages or by calling 'console' anywhere in the code.
gem 'web-console', '>= 4.1.0'
# Display performance information such as SQL time and flame graphs for each request in your browser.
# Can be configured to work on production as well see: https://github.com/MiniProfiler/rack-mini-profiler/blob/master/README.md
# gem 'rack-mini-profiler', '~> 2.0'
gem 'listen', '~> 3.3'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
end
group :production do
gem 'pg'
end
group :test do
# Adds support for Capybara system testing and selenium driver
gem 'capybara', '>= 3.26'
gem 'selenium-webdriver'
# Easy installation and use of web drivers to run system tests with browsers
gem 'webdrivers'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
gem 'devise'
gem 'simple_form'
gem 'faker'
gem 'will_paginate'
gem 'friendly_id'
gem "carrierwave"
gem "mime-types"
gem "fog-aws"