Question

当我执行cap staging deploy时，发生了错误：

00:09 deploy:migrate
      [deploy:migrate] Run `rake db:migrate`
** Invoke deploy:migrating (first_time)
** Invoke deploy:set_rails_env 
** Execute deploy:migrating
00:09 deploy:migrating
      01 $HOME/.rbenv/bin/rbenv exec bundle exec rake db:migrate
      01 config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly:
      01
      01   * development - set it to false
      01   * test - set it to false (unless you use a tool that preloads your test environment)
      01   * production - set it to true
      01
      01 rake aborted!
      01 ActiveRecord::AdapterNotSpecified: 'staging' database is not configured. Available: ["default", "development", "test", "production"]
      01 /var/www/demo-unicorn/shared/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/connection_specification.…

我的database.yml：

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
#
default: &default
  adapter: sqlite3
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  timeout: 5000

development:
  <<: *default
  database: db/development.sqlite3

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: db/test.sqlite3

production:
  <<: *default
  database: db/production.sqlite3

我的Capfile：

# Load DSL and set up stages
require "capistrano/setup"

# Include default deployment tasks
require "capistrano/deploy"

require "capistrano/scm/git"
install_plugin Capistrano::SCM::Git

# Include capistrano-rails
require 'capistrano/rails'
require 'capistrano/rbenv'
require 'capistrano/bundler'
require 'capistrano/rails/migrations'
require 'capistrano/rails/assets'
# Include default deployment tasks
require "capistrano/deploy"

# Include capistrano-rails
require 'capistrano/rails'
require 'capistrano/rbenv'
require 'capistrano/bundler'
require 'capistrano/rails/migrations'
require 'capistrano/rails/assets'
require 'capistrano/nginx'
require 'capistrano/upload-config'
require 'capistrano/ssh_doctor'

# Load the SCM plugin appropriate to your project:
#
# require "capistrano/scm/hg"
# install_plugin Capistrano::SCM::Hg
# or
# require "capistrano/scm/svn"
# install_plugin Capistrano::SCM::Svn
# or
require "capistrano/scm/git"
install_plugin Capistrano::SCM::Git

# Include tasks from other gems included in your Gemfile
#
# For documentation on these, see for example:
#
#   https://github.com/capistrano/rvm
#   https://github.com/capistrano/rbenv
#   https://github.com/capistrano/chruby
#   https://github.com/capistrano/bundler
#   https://github.com/capistrano/rails
#   https://github.com/capistrano/passenger
#
# require "capistrano/rvm"
# require "capistrano/rbenv"
# require "capistrano/chruby"
# require "capistrano/bundler"
# require "capistrano/rails/assets"
# require "capistrano/rails/migrations"
# require "capistrano/passenger"

# Load custom tasks from `lib/capistrano/tasks` if you have any defined
Dir.glob("lib/capistrano/tasks/*.rake").each { |r| import r }

我的Gemfile：

source 'https://rubygems.org'

git_source(:github) do |repo_name|
  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
  "https://github.com/#{repo_name}.git"
end


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.1.4'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.7'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# 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', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara', '~> 2.13'
  gem 'selenium-webdriver'
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
  gem 'capistrano', '~> 3.9'
  gem 'capistrano-rails', '~> 1.3'
  gem 'capistrano-rbenv', '~> 2.1'
  gem 'capistrano3-nginx'
  gem 'capistrano-upload-config'
  gem 'capistrano-ssh-doctor', '~> 1.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

我的config/deploy.rb：

# config valid for current version and patch releases of Capistrano
lock "~> 3.10.1"

set :application, "demo-unicorn"
set :repo_url, "git@github.com:liamyabou/demo-unicorn.git"
set :branch, 'master'
# ask :branch, `git rev-parse --abbrev-ref HEAD`.chomp

# Default deploy_to directory is /var/www/my_app_name
# set :deploy_to, "/var/www/my_app_name"

# Default value for :format is :airbrussh.
# set :format, :airbrussh

# You can configure the Airbrussh format using :format_options.
# These are the defaults.
# set :format_options, command_output: true, log_file: "log/capistrano.log", color: :auto, truncate: :auto

# Default value for :pty is false
# set :pty, true

# Default value for :linked_files is []
# append :linked_files, "config/database.yml", "config/secrets.yml"
set :linked_files, fetch(:linked_files, []).push('config/database.yml', 'config/secrets.yml')

# Default value for linked_dirs is []
# append :linked_dirs, "log", "tmp/pids", "tmp/cache", "tmp/sockets", "public/system"
set :linked_dirs, fetch(:linked_dirs, []).push('log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', 'public/system', 'public/uploads')

# Default value for default_env is {}
# set :default_env, { path: "/opt/ruby/bin:$PATH" }

# Default value for local_user is ENV['USER']
# set :local_user, -> { `git config user.name`.chomp }

# Default value for keep_releases is 5
# set :keep_releases, 5

# Uncomment the following to require manually verifying the host key before first deploy.
# set :ssh_options, verify_host_key: :secure

我的config/deploy/staging.rb：

# server-based syntax
# ======================
# Defines a single server with a list of roles and multiple properties.
# You can define all roles on a single server, or split them:

# server "example.com", user: "deploy", roles: %w{app db web}, my_property: :my_value
# server "example.com", user: "deploy", roles: %w{app web}, other_property: :other_value
# server "db.example.com", user: "deploy", roles: %w{db}
server '88.99.187.171', user: 'root', roles: %w{app web db}


# role-based syntax
# ==================

# Defines a role with one or multiple servers. The primary server in each
# group is considered to be the first unless any hosts have the primary
# property set. Specify the username and a domain or IP for the server.
# Don't use `:all`, it's a meta role.

# role :app, %w{deploy@example.com}, my_property: :my_value
# role :web, %w{user1@primary.com user2@additional.com}, other_property: :other_value
# role :db,  %w{deploy@example.com}
role :app, %w{root@88.99.187.171}
role :web, %w{root@88.99.187.171}
role :db,  %w{root@88.99.187.171}


# Configuration
# =============
# You can set any configuration variable like in config/deploy.rb
# These variables are then only loaded and set in this stage.
# For available Capistrano configuration variables see the documentation page.
# http://capistranorb.com/documentation/getting-started/configuration/
# Feel free to add new variables to customise your setup.



# Custom SSH Options
# ==================
# You may pass any option but keep in mind that net/ssh understands a
server '88.99.187.171', user: 'root', roles: %w{app web db}


# role-based syntax
# ==================

# Defines a role with one or multiple servers. The primary server in each
# group is considered to be the first unless any hosts have the primary
# property set. Specify the username and a domain or IP for the server.
# Don't use `:all`, it's a meta role.

# role :app, %w{deploy@example.com}, my_property: :my_value
# role :web, %w{user1@primary.com user2@additional.com}, other_property: :other_value
# role :db,  %w{deploy@example.com}
role :app, %w{root@88.99.187.171}
role :web, %w{root@88.99.187.171}
role :db,  %w{root@88.99.187.171}

我花了几个小时，请给我一些想法〜

Answer 1

您在database.yml
中没有登台数据库
分期：＆lt;＆lt ;: *默认

数据库：db / staging.sqlite3
如果您还有问题。确保您已创建临时数据库。

Answer 2

正确的database.yml在登台或制作

时看起来像这样

development: &default
  adapter: adapter name (sqlite , postgresql or mysql)
  encoding: utf8
  username: <%= ENV['DB_USERNAME'] %>
  password: <%= ENV['DB_PASSWORD'] %>
  host: <%= ENV['DB_HOST'] %>
  database: <%= ENV['DB_NAME'] %>
  pool: <%= ENV['DB_POOL'] %>

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default

staging:
  <<: *default

production:
  <<: *default

值将存储在通常隐藏的.env文件中。但在您的情况下，您直接要求它在不创建的情况下进行迁移。解决方法是直接创建名称为＆＃34; staging＆＃34;在您使用的任何数据库中，迁移将在此之后运行。我强烈建议不要手动创建，因为如果你要在另一个环境中移动这个应用程序，它可能会遇到问题。

Answer 3

我使用mysql代替默认sqlite，错误消除了;

文件路径config\database.yml：

default: &default
  adapter: mysql2
  username: root
  password: your_password
  host: localhost
  pool: 5
  timeout: 5000

development:
  <<: *default
  database: unicorn_development


staging:
  <<: *default
  database: unicorn_staging
  pool: 5


production:
  <<: *default
  database: unicorn_production
  pool: 5

cap staging deploy - SSHKit :: Runner :: ExecuteError：rake exit status：1

3 个答案: