This is when you're using a non-root ssh user? Would be nice if that case didn't require anything special, yeah. Please do explore a PR.

yes. going to draft a PR!

The documentation notes that if we're using a non-root user, we need to manually bootstrap the server (https://kamal-deploy.org/docs/configuration/ssh/).

I looked into codebase, and came up with this pseudo-code approach

After line 34

unless KAMAL.config.ssh.user == 'root'
  info "Adding User #{KAMAL.config.ssh.user} to group docker"
  execute *KAMAL.docker.add_group(KAMAL.config.ssh.user)
end

#lib/kamal/commands/docker.rb
def add_group(username)
  shell ["sudo usermod -aG docker #{username}"]
end

@nikhilbhatt thanks! do you want to create this PR?

@imWildCat Please go ahead as you have already opened up the issue and working on it.

Probably better just to add another command sequence to docker.rb following the pattern of the superuser? method and run that on the servers.

def add_group 
  [ '[ "${EUID:-$(id -u)}" -eq 0 ] || sudo usermod -aG docker "${USER:-$(id -un)}"' ]
end

then add execute *KAMAL.docker.add_group after the install line in server.rb

That's far easier to add to the existing Kamal::Commands::Docker tests than anything conditional.

I hope you'll forgive me for butting in here and opening the PR to fix this.

Comments welcome.

I hope you'll forgive me for butting in here and opening the PR to fix this.

Comments welcome.

No worries at all! I’m too busy recent days. Apologies for the delay!

+1 -- either having it automated as part of kamal setup or a warning / log message at least would be nice!