ruby-on-rails deployment migration capistrano

Capistrano: Some tasks are fired but has no output and does nothing

I'm trying to use Capistrano (3.6) to deploy my app, but some tasks doesn't works and return just nothing.

When I execute cap production deploy the release is correctly downloaded from my git server, the bundle install works, and files are linked. But some tasks seems to be skipped like "deploy:migrate".

I've tried to debug by creating these two tasks to see what happening during the deployment:

namespace :deploy do
  before :migrate, :debug do
    puts "BEFORE"
  end

  after :migrate, :debug do
    puts "AFTER"
  end
end

And i saw my tasks correctly hooked just after bundle install:

00:03 bundler:install
      01 ~/.rvm/bin/rvm 2.3.0 do bundle install --path /home/myuser/app/shared/bundle --without development test --deployment --qui…
    ✔ 01 myuser@myhost 2.380s
BEFORE
AFTER
00:05 deploy:symlink:release

But as you can see, nothing happens between BEFORE and AFTER, However i've pending migrations.

And if i run the task alone cap production deploy:migrate there is no output and nothing happens.

When I run the command directly on the remote host RAILS_ENV=production bundle exec rails db:migrate it's ok !

This the same behavior for some other tasks like puma:x, deploy:compile_asset, etc...

My Environment

I use RVM (single user) with ruby 2.3.0 (both side) My app is a Rails 5 (api only)

In my Gemfile

gem 'capistrano', '~> 3.6.0'
gem 'capistrano-rails', '~> 1.1'
gem 'capistrano-rvm', '~> 0.1.1'
gem 'capistrano3-puma', github: "seuros/capistrano-puma"

In my Capfile

require 'capistrano/rvm'
require 'capistrano/rails'
require 'capistrano/bundler'
require 'capistrano/puma'
require 'capistrano/puma/nginx'

My deploy.rb

set :rvm_ruby_version, '2.3.0'

set :application, 'myapp'
set :repo_url, '[email protected]:me/myapp.git'
set :deploy_to, '/home/myuser/app'

append :linked_files, 'config/database.yml', 'config/secrets.yml'
append :linked_dirs, 'log', 'tmp/pids', 'tmp/cache', 'tmp/sockets'

set :nginx_config_name, 'myapp'
set :nginx_server_name, 'myapp.mydomain.com'

My production.rb

server 'myhost', user: 'myuser', roles: %(app web db)

set :rails_env, 'production'

Thank for your help!

Solution

you've made a typo in your production.rb. If you run cap production doctor it will alert you to the problem.

Basically you have written %(app web db) when you meant %w(app web db).