It shows steps to configure deploy with capistrano on almost empty server (OVH) ubuntu

capistrano deploy from zero

# add key to authorized keys:

1. create file `.ssh/authorized_keys` on server, then on local machine:

`cat ~/.ssh/id_rsa.pub | ssh [email protected] -p 5555 'cat >> .ssh/authorized_keys'`

2. Check if it possible to login without password


# base capistrano config

gem 'capistrano', '~> 3.8'
gem 'capistrano-rvm', '~> 0.1.2'
gem 'capistrano-rails', '~> 1.1.7'
gem 'capistrano3-puma', '~> 1.2.1'
gem 'capistrano-bundler', '~> 1.1.4'

Capfile

require 'capistrano/rvm'
require 'capistrano/bundler'
require 'capistrano/puma'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'


# Add default capistrano config to `config/deploy/production.rb`

server '217.182.168.55', port: 5001, user: 'piotr', roles: %w(web app db)
set :rails_env, :production
set :default_shell, '/bin/bash --login'
set :deploy_to, '/home/babymeal/api'
set :keep_releases, 5
set :puma_rackup, -> { File.join(current_path, 'config.ru') }
set :puma_state, "#{shared_path}/tmp/pids/puma.state"
set :puma_pid, "#{shared_path}/tmp/pids/puma.pid"
set :puma_bind, "unix://#{shared_path}/tmp/sockets/puma.sock" # accept array for multi-bind
set :puma_conf, "#{shared_path}/puma.rb"
set :puma_access_log, "#{shared_path}/log/puma_error.log"
set :puma_error_log, "#{shared_path}/log/puma_access.log"
set :puma_role, :app
set :puma_env, fetch(:rack_env, fetch(:rails_env, 'production'))
set :puma_worker_timeout, nil
set :puma_init_active_record, true
set :puma_preload_app, false
set :rvm_ruby_version, '2.4.0'
set :assets_roles, [:web, :app]

and to `config/deploy.rb`

# config valid only for current version of Capistrano
lock '3.8.0'

set :application, 'babymeal'
set :repo_url, 'ssh://[email protected]/piotr_galas/my_cool_repo.git'

ask :branch, `git rev-parse --abbrev-ref HEAD`.chomp

set :scm, :git
set :format, :pretty
set :linked_files, fetch(:linked_files, []).push('config/database.yml', 'config/secrets.yml', 'config/application.yml')
set :linked_dirs, fetch(:linked_dirs, []).push('log',
                                               'tmp/pids',
                                               'tmp/cache',
                                               'tmp/sockets',
                                               'vendor/bundle',
                                               'public/uploads')

# Fix error occured

a)/home/user/.rvm/bin/rvm: No such file or directory -> Install rvm:

gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
\curl -sSL https://get.rvm.io | bash -s stable
source /home/piotr/.rvm/scripts/rvm

b) Ruby ruby-2.4.0 is not installed.

rvm install ruby-2.4.0

c) /home/piotr/babymeal/api/shared/config/database.yml does not exist on xxxx

add database.yml and secrets.yml application.yml to config


d) /home/piotr/.rvm/scripts/set: line 19: exec: bundle: not found

gem install bundle

e)  mysql client is missing. You may need to 'apt-get install libmysqlclient-dev'  - install mysql on server

sudo su
apt-get -y install mariadb-server mariadb-client
apt-get install libmysqlclient-dev
mysql_secure_instalation
sudo mysql -u root
'mysql_native_password' WHERE user = 'root' AND plugin = 'unix_socket';
FLUSH PRIVILEGES;


f) Bundler::GemRequireError: There was an error while trying to load the gem 'coffee-rails', Could not find a JavaScript runtime

sudo apt-get install nodejs

g)  Unknown database 'babymeal_prod'

Create database in mysql