Merge pull request #580 from happyscribe/feat/no-web

Allow Kamal to run without traefik

lib/kamal/cli/healthcheck.rb

@@ -3,6 +3,7 @@ class Kamal::Cli::Healthcheck < Kamal::Cli::Base
 
   desc "perform", "Health check current app version"
   def perform
+    raise "The primary host is not configured to run Traefik" unless KAMAL.config.role(KAMAL.config.primary_role).running_traefik?
     on(KAMAL.primary_host) do
       begin
         execute *KAMAL.healthcheck.run

lib/kamal/cli/main.rb

@@ -38,8 +38,10 @@ class Kamal::Cli::Main < Kamal::Cli::Base
         say "Ensure Traefik is running...", :magenta
         invoke "kamal:cli:traefik:boot", [], invoke_options
 
-        say "Ensure app can pass healthcheck...", :magenta
-        invoke "kamal:cli:healthcheck:perform", [], invoke_options
+        if KAMAL.config.role(KAMAL.config.primary_role).running_traefik?
+          say "Ensure app can pass healthcheck...", :magenta
+          invoke "kamal:cli:healthcheck:perform", [], invoke_options
+        end
 
         say "Detect stale containers...", :magenta
         invoke "kamal:cli:app:stale_containers", [], invoke_options.merge(stop: true)

lib/kamal/cli/templates/deploy.yml

@@ -84,13 +84,12 @@ registry:
 #   limit: 10 # Can also specify as a percentage of total hosts, such as "25%"
 #   wait: 2
 
-# Configure the role used to determine the primary_web_host. This host takes
+# Configure the role used to determine the primary_host. This host takes
 # deploy locks, runs health checks during the deploy, and follow logs, etc.
-# This role should have traefik enabled.
 #
 # Caution: there's no support for role renaming yet, so be careful to cleanup
 #          the previous role on the deployed hosts.
-# primary_web_role: web
+# primary_role: web
 
 # Controls if we abort when see a role with no hosts. Disabling this may be
 # useful for more complex deploy configurations.