Only envify if there is a template file available

lib/kamal/cli/main.rb

@@ -186,12 +186,16 @@ class Kamal::Cli::Main < Kamal::Cli::Base
       env_path          = ".env"
     end
 
+    if File.exist?(env_template_path)
       File.write(env_path, ERB.new(File.read(env_template_path), trim_mode: "-").result, perm: 0600)
 
       unless options[:skip_push]
         reload_envs
         invoke "kamal:cli:env:push", options
       end
+    else
+      puts "Skipping envify (no #{env_template_path} exist)"
+    end
   end
 
   desc "remove", "Remove Traefik, app, accessories, and registry session from servers"