我构建了一个Rails6应用程序，但构建它时没有考虑生产存储。
现在在config/development.rb中，所有的东西都存储在本地，所以我没有再三考虑存储，因为"它在我的机器上工作"。
# Store uploaded files on the local file system (see config/storage.yml for options).
config.active_storage.service = :local
然而，并非在生产中部署，每次部署后，已上传的图像(独立附加图像has_one_attached :image，以及富文本内容中包含的图像has_rich_text :content(在部署后都会消失。
我知道我需要配置我的config/production.rb和storage.yml文件，但我不知道如何进行。
我的production.rb文件如下所示：
Rails.application.configure do
# Settings specified here will take precedence over those in config/application.rb.
# Code is not reloaded between requests.
config.cache_classes = true
# Eager load code on boot. This eager loads most of Rails and
# your application in memory, allowing both threaded web servers
# and those relying on copy on write to perform better.
# Rake tasks automatically ignore this option for performance.
config.eager_load = true
# Full error reports are disabled and caching is turned on.
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
# Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
# or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
# config.require_master_key = true
# Disable serving static files from the `/public` folder by default since
# Apache or NGINX already handles this.
config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
# Compress CSS using a preprocessor.
# config.assets.css_compressor = :sass
# Do not fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = false
# Enable serving of images, stylesheets, and JavaScripts from an asset server.
# config.action_controller.asset_host = 'http://assets.example.com'
# Specifies the header that your server uses for sending files.
# config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
# config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
# Store uploaded files on the local file system (see config/storage.yml for options).
config.active_storage.service = :local
# Mount Action Cable outside main process or domain.
# config.action_cable.mount_path = nil
# config.action_cable.url = 'wss://example.com/cable'
# config.action_cable.allowed_request_origins = [ 'http://example.com', /http://example.*/ ]
# Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
# config.force_ssl = true
# Use the lowest log level to ensure availability of diagnostic information
# when problems arise.
config.log_level = :debug
# Prepend all log lines with the following tags.
config.log_tags = [ :request_id ]
# Use a different cache store in production.
# config.cache_store = :mem_cache_store
# Use a real queuing backend for Active Job (and separate queues per environment).
# config.active_job.queue_adapter = :resque
# config.active_job.queue_name_prefix = "taaalk_edge_production"
config.action_mailer.perform_caching = false
# Ignore bad email addresses and do not raise email delivery errors.
# Set this to true and configure the email server for immediate delivery to raise delivery errors.
# config.action_mailer.raise_delivery_errors = false
# Enable locale fallbacks for I18n (makes lookups for any locale fall back to
# the I18n.default_locale when a translation cannot be found).
config.i18n.fallbacks = true
# Send deprecation notices to registered listeners.
config.active_support.deprecation = :notify
# Use default logging formatter so that PID and timestamp are not suppressed.
config.log_formatter = ::Logger::Formatter.new
# Use a different logger for distributed setups.
# require 'syslog/logger'
# config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
if ENV["RAILS_LOG_TO_STDOUT"].present?
logger = ActiveSupport::Logger.new(STDOUT)
logger.formatter = config.log_formatter
config.logger = ActiveSupport::TaggedLogging.new(logger)
end
# Do not dump schema after migrations.
config.active_record.dump_schema_after_migration = false
# Inserts middleware to perform automatic connection switching.
# The `database_selector` hash is used to pass options to the DatabaseSelector
# middleware. The `delay` is used to determine how long to wait after a write
# to send a subsequent read to the primary.
#
# The `database_resolver` class is used by the middleware to determine which
# database is appropriate to use based on the time delay.
#
# The `database_resolver_context` class is used by the middleware to set
# timestamps for the last write to the primary. The resolver uses the context
# class timestamps to determine how long to wait before reading from the
# replica.
#
# By default Rails will store a last write timestamp in the session. The
# DatabaseSelector middleware is designed as such you can define your own
# strategy for connection switching and pass that into the middleware through
# these configuration options.
# config.active_record.database_selector = { delay: 2.seconds }
# config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
# config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
# Devise mailer
config.action_mailer.default_url_options = { host: 'https://taaalk.co' }
end
我的storage.yml文件如下所示：
test:
service: Disk
root: <%= Rails.root.join("tmp/storage") %>
local:
service: Disk
root: <%= Rails.root.join("storage") %>
# cloudinary:
# service: Cloudinary
# Use rails credentials:edit to set the AWS secrets (as aws:access_key_id|secret_access_key)
# amazon:
# service: S3
# access_key_id: <%= Rails.application.credentials.dig(:aws, :access_key_id) %>
# secret_access_key: <%= Rails.application.credentials.dig(:aws, :secret_access_key) %>
# region: us-east-1
# bucket: your_own_bucket
# Remember not to checkin your GCS keyfile to a repository
# google:
# service: GCS
# project: your_project
# credentials: <%= Rails.root.join("path/to/gcs.keyfile") %>
# bucket: your_own_bucket
# Use rails credentials:edit to set the Azure Storage secret (as azure_storage:storage_access_key)
# microsoft:
# service: AzureStorage
# storage_account_name: your_account_name
# storage_access_key: <%= Rails.application.credentials.dig(:azure_storage, :storage_access_key) %>
# container: your_container_name
# mirror:
# service: Mirror
# primary: local
# mirrors: [ amazon, google, microsoft ]
在开始解决这个问题时，我正确地阅读了ActiveStorage上的文档，并看到了以下内容：
Active Storage使用应用程序数据库中名为的两个表active_storage_blobs和active_storage_attachments。创建新的应用程序(或将应用程序升级到Rails 5.2(，运行bin/rails active_storage：安装以生成迁移，该迁移创建这些表格。使用bin/rrails db:migrate来运行迁移。
在构建应用程序时，我在任何时候都没有运行bin/rails active_storage:install。
我不知道我现在是否需要这样做/如果我这样做会把事情搞砸的。
如果我的问题有点模糊，我很抱歉，但如果有人能直接回答最后一点，那就太好了，并为我指明如何解决更一般的问题的方向(整理我的production.rb文件/storage.yml文件(。
编辑
我可能已经运行了bin/rails active_storage:install。我的schema.rb中有以下表格：
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
create_table "action_text_rich_texts", force: :cascade do |t|
t.string "name", null: false
t.text "body"
t.string "record_type", null: false
t.bigint "record_id", null: false
t.datetime "created_at", precision: 6, null: false
t.datetime "updated_at", precision: 6, null: false
t.index ["record_type", "record_id", "name"], name: "index_action_text_rich_texts_uniqueness", unique: true
end
create_table "active_storage_attachments", force: :cascade do |t|
t.string "name", null: false
t.string "record_type", null: false
t.bigint "record_id", null: false
t.bigint "blob_id", null: false
t.datetime "created_at", null: false
t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
end
create_table "active_storage_blobs", force: :cascade do |t|
t.string "key", null: false
t.string "filename", null: false
t.string "content_type"
t.text "metadata"
t.bigint "byte_size", null: false
t.string "checksum", null: false
t.datetime "created_at", null: false
t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
end
是的，这是应该的。Dokku通过Docker容器运行，所以每次部署后，您的应用程序都在"新的虚拟设备"上运行https://www.docker.com/resources/what-container您可以阅读以下内容：http://dokku.viewdocs.io/dokku/advanced-usage/persistent-storage/或者使用一些云存储(例如AWS S3(