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Deployment

This documents explains how to deploy a Rails app to Uberspace as a hosting provider and InternetWorx as a domain registrar.

In the following document, replace ACCOUNT with your Uberspace account name (e.g. base), SERVER with the Uberspace server (e.g. sirius), PROJECT with your GitHub repository name (e.g. base), and PORT with the Rails app's port (I suggest using one close to but above 3001)! When you worked through this document, remove this paragraph here, then commit the document.

Notice: the $ sign in code examples indicates a shell prompt! If you copy&pase, don't copy the $ sign!

Register new account

  • Go to the register page and create a new Uberspace account.
  • Then add your public SSH key on the Logins page.
    • To view your public SSH key, do $ cat ~/.ssh/id_rsa.pub.
  • You can see the chosen Uberspace server's name in the Datasheet.
  • Now you can connect to your account: $ ssh [email protected].
    • Confirm the question Are you sure you want to continue connecting? with a heartly yes.

Add GitHub to known hosts

Mailer email account

To send Mails using SMTP, we need a mailer email account.

  • On Uberspace, execute $ uberspace mail user add mailer.
  • Remember the password for later use!

Secrets.yml

Create /home/ACCOUNT/rails/shared/config/secrets.yml and set up a deployment config according to config/secrets.example.yml (remove development and test configs).

The database info can be found in the file ~/.my.cnf.

Setting up Capistrano

  • Edit config/deploy.rb and set:
    • :application to something like 'Base'.
    • :repo_url to something like '[email protected]:jmuheim/base.git'.
    • :deploy_to to something like '/home/ACCOUNT/rails'.
    • :puma_bind to something like 'tcp://0.0.0.0:PORT' (use the same port as app_port in secrets.yml, e.g. 3001).
  • Edit config/deploy/production.rb and add a line like server "ACCOUNT.uberspace.de", user: "ACCOUNT", roles: %w{web app db}
  • Save the files, commit and push the branch.

First deployment

The first deployment is a special one, as it needs to load the database schema (it is called a "cold" deploy). Any subsequent deployments won't do this; instead they will trigger the database migrations.

On your local console, execute $ cap production deploy_cold. This could take some minutes (installing and compiling gems).

Configure web backend

The Rails app is now running in the background and accepts request on the specified port. To make this port accessible to the outside world, we need to route incoming requests to it.

  • On Uberspace, execute $ uberspace web backend set / --http --port PORT (use the same port as app_port in secrets.yml, e.g. 3001).
    • To verify that the server actually is running on the specified port, execute $ ps aux | grep puma.
  • Now go to http://ACCOUNT.uber.space and enjoy your site!

You may now want to update the link to the live project in README.md. :-)

Populate database

Option 1: Seed data

To populate the database with initial records (seeds), execute $ cap production db_seed. See db/seeds.rb for more details about the seed data.

Option 2: Import data

To use existing data (maybe from another running instance, or from your development instance), feel free to simply export the database tables in question and import them into the database.

Further deployments

For any further deployment, simply push all your changes, then run $ cap production deploy.

Additional info about Uberspace

Setup of deployment ends here. The following is a collection of additional useful information regarding Uberspace.

Add domain

For website use, on Uberspace, execute:

  • $ uberspace web domain add example.com to add domain example.com
  • $ uberspace web domain add www.example.com to add subdomain www.example.com

For mail use, on Uberspace, execute:

  • $ uberspace mail domain add example.com adds domain example.com

DNS

Add the following records to the DNS for the domain (at your domain registrar's control panel, in our case InternetWorx):

  • IPv4: dig <server>.uberspace.de A +short
  • IPv6: dig <server>.uberspace.de AAAA +short
  • Aliases (CNAME):
    • www
    • autoconfig and autodiscover (for automx support)
  • Email (MX):
    • SERVER.uberspace.de with priority 5

Create email account(s)(remote)

Create account user in namespace example:

  • $ vadduser example-user

Mail sent to [email protected] will be received by this account.

Configure mail client local

OSX Mail:

Thunderbird:

  • Just add the account in the account settings using user name and password - Thunberbird will automatically detect the correct settings!