Capistrano deploy configuration - ruby-on-rails

Question

Help please to configure capistrano for deployment.
I have ssh:
user: User
host: 8.8.8.8:6554
pass: 123
Then i have bitbucket repository git#bitbucket.org:somerepo/code.git
user: Repouser#gmail.com
pass: repopass
I am just need to deploy code from default branch to User#8.8.8.8:8888:/public_html/test/ . On local machine i have ssh key, that allows me to connect without password. But capistrano didn't connect.
There is my config:
lock '3.3.5'
set :application, 'App'
set :scm, :git
set :repo_url, 'git#bitbucket.org:somerepo/code.git'
set :scm_passphrase, ""
set :scm_user, "Repouser#gmail.com"
set :user, 'User'
set :deploy_to, '/public_html/test'
set :app_dir, "/public_html/test"
set :ssh_options, {:forward_agent => true}
role :web, '8.8.8.8:6554'
namespace :deploy do
after :restart, :clear_cache do
on roles(:web), in: :groups, limit: 3, wait: 10 do
end
end
end
Error:
connection closed by remote host
** Invoke deploy:failed (first_time)
** Execute deploy:failed

Answer 1

Step 1: in Gemfile
gem 'capistrano'
gem 'capistrano-bundler'
gem 'capistrano-rails'
Step 2: bundle
Step 3: cap install ## it will generate set of file
Step 4: go in Capfile and paste the following code ## this file will be parallel to your rails application
require 'capistrano/setup'
require 'capistrano/deploy'
require 'capistrano/bundler'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
Step 5: Config/deploy.rb that will be common to both ENV
This file will be shared/common across the application environment
set :application, 'your_app' ## keep in mind that your app dir name will be your_app
set :repo_url, 'git#bitbucket.org:somerepo/code.git'
set :branch, 'master'
set :use_sudo, true
set :deploy_to, '/public_html/test'
set :linked_files, fetch(:linked_files, []).push('config/database.yml')
set :linked_dirs, fetch(:linked_dirs, []).push('bin', 'log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', 'public/system')
namespace :deploy do
after :restart, :clear_cache do
on roles(:web), in: :groups, limit: 3, wait: 10 do
# Here we can do anything such as:
# within release_path do
# execute :rake, 'cache:clear'
# end
end
end
end
Step6: Lets create ENV specific file for now For production Environment
config/deploy/production.rb ## this file will be generate by cap install command that you did earlier no need for this time
do comment all the code except this
role :app, %w{8.8.8.8:6554}
set :ssh_options, {
user: 'User'
}
Step 6: now do ssh to your server ssh User#8.8.8.8:6554
now it will ask for the password ... give password
Step 7: now by default your app will go /var/www/app and here you need to create the folder accordingly But in your case as you set :deploy_to, '/public_html/test' # make sure Dir name is followed by / 'Forward slash' this mistake i did many times
sudo mkdir -p /public_html
sudo mkdir -p /public_html/test
sudo chown User:User /public_html/test # `chown` will change the owner ship so that `User` user can `**Read/Write**`
umask 0002
mkdir /public_html/test/releases ## these are convention
mkdir /public_html/test/shared ## these are convention
sudo chown User:User public_html/test/releases
sudo chown User:User public_html/test/shared
mkdir .ssh
chmod .ssh 007
ssh-keygen -t rsa
and follow the step ## this will generate ssh key
cat .ssh/id_rsa.pub
Now add this key to your repo's go to => setting => deployment keys Button => click on that and add Key. Put the label name any thing you want and paste the ssh key here.
That it from server side
Step8: Now you need to add your ssh key to server
For that do cat ~/.ssh/id_rsa.pub if you have rsa key other wise generate rsa key it is very easy to crate
Step 9: Login to your server using ssh
`vi .ssh/authorized_keys` and paste your local machine rsa key
save and exit
Step 10 : cap -T ## list out all the task
step 11: cap production deploy:check
It will throw an error because database.yml file is not there
For that vi /public_html/test/shared/config/database.yml
development:
adapter: postgresql
database: testdb_cap
pool: 5
timeout: 5000
save and exit
Do again cap production deploy:check
This time would not throw any error
Step 12:
cap production deploy
And That's it
Check this also ruby rake task after deploymewnt