Add ENV['SERVICE'] to hooks

lib/kamal/tags.rb

@@ -13,7 +13,8 @@ class Kamal::Tags
         performer: `whoami`.chomp,
         destination: config.destination,
         version: config.version,
-        service_version: service_version(config) }
+        service_version: service_version(config),
+        service: config.service }
     end
 
     def service_version(config)

test/cli/cli_test_case.rb

@@ -43,6 +43,7 @@ class CliTestCase < ActiveSupport::TestCase
 
     def assert_hook_ran(hook, output, version:, service_version:, hosts:, command:, subcommand: nil, runtime: false)
       performer = `whoami`.strip
+      service = service_version.split("@").first
 
       assert_match "Running the #{hook} hook...\n", output
 
@@ -52,6 +53,7 @@ class CliTestCase < ActiveSupport::TestCase
         KAMAL_PERFORMER=\"#{performer}\"\s
         KAMAL_VERSION=\"#{version}\"\s
         KAMAL_SERVICE_VERSION=\"#{service_version}\"\s
+        KAMAL_SERVICE=\"#{service}\"\s
         KAMAL_HOSTS=\"#{hosts}\"\s
         KAMAL_COMMAND=\"#{command}\"\s
         #{"KAMAL_SUBCOMMAND=\\\"#{subcommand}\\\"\\s" if subcommand}