{"id":944,"date":"2019-01-11T15:07:05","date_gmt":"2019-01-11T12:07:05","guid":{"rendered":"https:\/\/artem.services\/?p=486"},"modified":"2019-03-17T17:49:21","modified_gmt":"2019-03-17T14:49:21","slug":"heroku-ruby-on-rails-2","status":"publish","type":"post","link":"https:\/\/artem.services\/?p=944&lang=en","title":{"rendered":"Heroku — Ruby on Rails"},"content":{"rendered":"

\"\"System preparation<\/span><\/span><\/h3>\n
\r\napt install curl git gnupg2 nodejs\r\n<\/pre>\n
Install RVM<\/strong><\/p>\n
Go to the site<\/span><\/span> rvm.io<\/a>  and look at the installation commands:<\/span><\/span><\/p>\n
\r\ngpg2 --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB\r\ncurl -sSL https:\/\/get.rvm.io | bash -s stable\r\n<\/pre>\n
Add a user to the group:<\/span><\/span><\/p>\n
\r\nvim \/etc\/group\r\n<\/pre>\n
rvm:x:1001:ubuntu<\/pre>\n
My username in the system<\/span><\/span> — ubuntu<\/strong><\/p><\/blockquote>\n
 <\/p>\n
Then from the user:<\/span><\/span><\/p>\n
\r\nsource \/etc\/profile.d\/rvm.sh\r\n<\/pre>\n
<\/p>\n
Find out the version of RVM<\/strong>:<\/span><\/span><\/p>\n
\r\nrvm --version\r\n<\/pre>\n
View a list of Ruby<\/strong> versions available for installation:<\/span><\/span><\/p>\n
\r\nrvm list known\r\n<\/pre>\n
Install the latest version of Ruby<\/strong>:<\/span><\/span><\/p>\n
\r\nrvm install "ruby-2.5.1"\r\n<\/pre>\n
The list of installed Ruby<\/strong> versions and the default can be found as follows:<\/span><\/span><\/p>\n
\r\nrvm list\r\n<\/pre>\n
Let’s see the gem<\/strong> version and update it:<\/span><\/span><\/p>\n
\r\ngem -v\r\ngem update --system\r\n<\/pre>\n
InstallRails<\/strong>:<\/p>\n
\r\ngem install rails\r\n<\/pre>\n
 <\/p>\n
Create application<\/span><\/span><\/h3>\n
Create a test application:<\/span><\/span><\/p>\n
\r\nrails new example_app -T\r\n<\/pre>\n
Go to the directory of our application:<\/span><\/span><\/p>\n
\r\ncd example_app\r\n<\/pre>\n
Let’s create for the test <\/span><\/span>index.html<\/span><\/span><\/strong><\/p>\n
\r\nvim public\/index.html\r\n<\/pre>\n
 <\/p>\n
Insert there the following:<\/span><\/span><\/p>\n
\r\n<!DOCTYPE html>\r\n<html>\r\n    <head>\r\n        <title>Ruby<\/title>\r\n    <\/head>\r\n    <body>\r\nExample Ruby App\r\n    <\/body>\r\n<\/html>\r\n\r\n<\/pre>\n
 <\/p>\n
Run for test on all interfaces:<\/span><\/span><\/p>\n
\r\nbundle exec rails s -p 3000 -b '0.0.0.0'\r\n\r\n=> Booting Puma\r\n=> Rails 5.2.2 application starting in development \r\n=> Run `rails server -h` for more startup options\r\nPuma starting in single mode...\r\n* Version 3.12.0 (ruby 2.5.1-p57), codename: Llamas in Pajamas\r\n* Min threads: 5, max threads: 5\r\n* Environment: development\r\n* Listening on tcp:\/\/0.0.0.0:3000\r\nUse Ctrl-C to stop\r\n<\/pre>\n
 <\/p>\n
Check in the browser:<\/span><\/span><\/p>\n
1.2.3.4:3000<\/pre>\n
Where 1.2.3.4<\/strong> is the IP address of the computer where the application is running<\/span><\/span><\/p><\/blockquote>\n
If the computer has a graphical shell, you can omit the IP<\/strong> address when launching the application, and enter the browser by localhost.<\/span> Also without graphics, the localhost can be checked with a cursor or a console browser. <\/span><\/span><\/p>\n
You can stop the application — Ctrl-C<\/strong><\/span><\/span><\/p>\n
 <\/p>\n
Git<\/h3>\n
Being in the root of our application, we initialize the repository:<\/span><\/span><\/p>\n
\r\ngit init\r\n\r\nReinitialized existing Git repository in \/home\/ubuntu\/heroku\/example_app\/.git\/\r\n<\/pre>\n
Check status:<\/span><\/span><\/p>\n
\r\ngit status\r\n\r\nOn branch master\r\n\r\nNo commits yet\r\n\r\nUntracked files:\r\n  (use "git add <file>..." to include in what will be committed)\r\n\r\n        .gitignore\r\n        .ruby-version\r\n        Gemfile\r\n        Gemfile.lock\r\n        README.md\r\n        Rakefile\r\n        app\/\r\n        bin\/\r\n        config.ru\r\n        config\/\r\n        db\/\r\n        lib\/\r\n        log\/\r\n        package.json\r\n        public\/\r\n        storage\/\r\n        tmp\/\r\n        vendor\/\r\n\r\nnothing added to commit but untracked files present (use "git add" to track)\r\n<\/pre>\n
 <\/p>\n
Add all files:<\/span><\/span><\/p>\n
\r\ngit add .\r\n<\/pre>\n
 <\/p>\n
And we are doing a commit:<\/span><\/span><\/p>\n
\r\ngit commit -am "Add Ruby files to repo"\r\n<\/pre>\n
 <\/p>\n
Check:<\/span><\/span><\/p>\n
\r\ngit status\r\n\r\nOn branch master\r\n\r\nNo commits yet\r\n\r\nChanges to be committed:\r\n  (use "git rm --cached <file>..." to unstage)\r\n\r\n        new file:   .gitignore\r\n        new file:   .ruby-version\r\n        new file:   Gemfile\r\n        new file:   Gemfile.lock\r\n        new file:   README.md\r\n        new file:   Rakefile\r\n        new file:   app\/assets\/config\/manifest.js\r\n        new file:   app\/assets\/images\/.keep\r\n        new file:   app\/assets\/javascripts\/application.js\r\n        new file:   app\/assets\/javascripts\/cable.js\r\n        new file:   app\/assets\/javascripts\/channels\/.keep\r\n        new file:   app\/assets\/stylesheets\/application.css\r\n        new file:   app\/channels\/application_cable\/channel.rb\r\n        new file:   app\/channels\/application_cable\/connection.rb\r\n        new file:   app\/controllers\/application_controller.rb\r\n        new file:   app\/controllers\/concerns\/.keep\r\n        new file:   app\/helpers\/application_helper.rb\r\n        new file:   app\/jobs\/application_job.rb\r\n        new file:   app\/mailers\/application_mailer.rb\r\n        new file:   app\/models\/application_record.rb\r\n        new file:   app\/models\/concerns\/.keep\r\n        new file:   app\/views\/layouts\/application.html.erb\r\n        new file:   app\/views\/layouts\/mailer.html.erb\r\n        new file:   app\/views\/layouts\/mailer.text.erb\r\n        new file:   bin\/bundle\r\n        new file:   bin\/rails\r\n        new file:   bin\/rake\r\n        new file:   bin\/setup\r\n        new file:   bin\/spring\r\n        new file:   bin\/update\r\n        new file:   bin\/yarn\r\n        new file:   config.ru\r\n        new file:   config\/application.rb\r\n        new file:   config\/boot.rb\r\n        new file:   config\/cable.yml\r\n        new file:   config\/credentials.yml.enc\r\n        new file:   config\/database.yml\r\n        new file:   config\/environment.rb\r\n        new file:   config\/environments\/development.rb\r\n        new file:   config\/environments\/production.rb\r\n        new file:   config\/environments\/test.rb\r\n        new file:   config\/initializers\/application_controller_renderer.rb\r\n        new file:   config\/initializers\/assets.rb\r\n        new file:   config\/initializers\/backtrace_silencers.rb\r\n        new file:   config\/initializers\/content_security_policy.rb\r\n        new file:   config\/initializers\/cookies_serializer.rb\r\n        new file:   config\/initializers\/filter_parameter_logging.rb\r\n        new file:   config\/initializers\/inflections.rb\r\n        new file:   config\/initializers\/mime_types.rb\r\n        new file:   config\/initializers\/wrap_parameters.rb\r\n        new file:   config\/locales\/en.yml\r\n        new file:   config\/puma.rb\r\n        new file:   config\/routes.rb\r\n        new file:   config\/spring.rb\r\n        new file:   config\/storage.yml\r\n        new file:   db\/seeds.rb\r\n        new file:   lib\/assets\/.keep\r\n        new file:   lib\/tasks\/.keep\r\n        new file:   log\/.keep\r\n        new file:   package.json\r\n        new file:   public\/404.html\r\n        new file:   public\/422.html\r\n        new file:   public\/500.html\r\n        new file:   public\/apple-touch-icon-precomposed.png\r\n        new file:   public\/apple-touch-icon.png\r\n        new file:   public\/favicon.ico\r\n        new file:   public\/index.html\r\n        new file:   public\/robots.txt\r\n        new file:   storage\/.keep\r\n        new file:   tmp\/.keep\r\n        new file:   vendor\/.keep\r\n<\/pre>\n
 <\/p>\n
Heroku<\/h3>\n
We register on <\/span><\/span> heroku.com<\/a> and go to the account.<\/span><\/span><\/p>\n
For the convenience of working with Heroku<\/strong>, install their CLI<\/strong><\/span><\/span><\/p>\n
\u00a0<\/span><\/span><\/p>\n
\r\nsudo snap install --classic heroku\r\n<\/pre>\n
Installation for distributions other than Ubuntu can be viewed on the website<\/span><\/span> Heroku<\/a><\/p>\n
Check:<\/p>\n
\r\nheroku --version\r\n\r\nheroku\/7.19.4 linux-x64 node-v11.3.0\r\n<\/pre>\n
Log in to <\/span><\/span> Heroku CLI<\/strong>:<\/p>\n
\r\nheroku login\r\n<\/pre>\n
We press any key and get the authorization URL<\/strong>, copy it to the browser, log in. <\/span><\/span><\/p>\n
Let’s create an application on Heroku<\/strong>:<\/span><\/span><\/p>\n
\r\nheroku create\r\n\r\nCreating app... done, \u2b22 my-generated-app-name-83844\r\nhttps:\/\/my-generated-app-name-83844.herokuapp.com\/ | https:\/\/git.heroku.com\/my-generated-app-name-83844.git\r\n<\/pre>\n
Now in the Gemfile<\/strong> it is necessary to replace "sqlite3<\/strong>" with "postgres<\/strong>", otherwise Heroku<\/strong> will give the following error:<\/span><\/span><\/p>\n
\r\nremote: An error occurred while installing sqlite3 (1.3.13), and Bundler cannot\r\nremote: continue.\r\nremote: Make sure that `gem install sqlite3 -v '1.3.13'` succeeds before bundling.\r\nremote:\r\nremote: In Gemfile:\r\nremote: sqlite3\r\nremote:\r\nremote: !\r\nremote: ! Failed to install gems via Bundler.\r\nremote: ! Detected sqlite3 gem which is not supported on Heroku:\r\nremote: ! https:\/\/devcenter.heroku.com\/articles\/sqlite3\r\nremote: !\r\nremote: ! Push rejected, failed to compile Ruby app.\r\n<\/pre>\n
Open Gemfile<\/strong><\/p>\n
\r\nvim Gemfile\r\n<\/pre>\n
Find at the beginning of the file record of <\/span><\/span>sqlite3<\/span><\/span><\/strong><\/p>\n
\r\ngem 'sqlite3'\r\n<\/pre>\n
And we transfer it to the block<\/span><\/span> "group :development, :test do<\/strong>"<\/p>\n
To get the following:<\/span><\/span><\/p>\n
\r\ngroup :development, :test do\r\n  # Call 'byebug' anywhere in the code to stop execution and get a debugger console\r\n  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]\r\n  gem 'sqlite3'\r\nend\r\n<\/pre>\n
Before this block, add a new block:<\/span><\/span><\/p>\n
\r\ngroup :production do\r\n  gem 'pg'\r\nend\r\n<\/pre>\n
Save changes to the file.<\/span><\/span><\/p>\n
Reinstall without postgres<\/strong>.<\/span><\/span><\/p>\n
\r\nbundle install --without production\r\n<\/pre>\n
Add files, commit and push to<\/span><\/span> Heroku<\/strong>:<\/p>\n
\r\ngit add .\r\ngit commit -am "Heroku"\r\ngit push heroku master\r\n<\/pre>\n
Check:<\/p>\n
\r\nheroku open\r\n<\/pre>\n
In response, we get the URL<\/strong> by which we can check the application on Heroku<\/strong>.<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
System preparation Install RVM Go to the site rvm.io and look at the installation commands: Add a user to the group: rvm:x:1001:ubuntu My username in the system — ubuntu   Then from the user:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[399],"tags":[433,689,691,413,693],"_links":{"self":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/944"}],"collection":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=944"}],"version-history":[{"count":2,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/944\/revisions"}],"predecessor-version":[{"id":949,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/944\/revisions\/949"}],"wp:attachment":[{"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}