Ruby code in yaml comment breaks example deploy.yml

[harryvederci]

deploy.yml file section:

# Configure builder setup.
builder:
  arch: amd64
  # Pass in additional build args needed for your Dockerfile.
  # args:
  #   RUBY_VERSION: <%= File.read('.ruby-version').strip %>

When I run kamal deploy:

  Finished all in 0.0 seconds
  ERROR (Errno::ENOENT): No such file or directory @ rb_sysopen - .ruby-version

When I remove the commented out lines, the issue goes away.

[harryvederci]

The issue is in the <%= ... =>

I don't have a .ruby-version file, so the default config file errors by default for me.

Easily solved by removing it, but I guess a non-ruby dev could try kamal, see it crash, and move on.

Possible solutions:

• only execute ruby code outside of yml comments
• remove/alter the .ruby-version example

[shiny]

Encounter the same probleam, thanks a lot!

[julienanne]

Same here ;) Thanks, save my day.

[JangoCG]

Thank you! Saved me the headache