Merge pull request #1020 from igor-alexandrov/network-args

Allow to override network

lib/kamal/commands/accessory.rb

@@ -1,7 +1,7 @@
 class Kamal::Commands::Accessory < Kamal::Commands::Base
   attr_reader :accessory_config
   delegate :service_name, :image, :hosts, :port, :files, :directories, :cmd,
-           :publish_args, :env_args, :volume_args, :label_args, :option_args,
+           :network_args, :publish_args, :env_args, :volume_args, :label_args, :option_args,
            :secrets_io, :secrets_path, :env_directory,
            to: :accessory_config
 
@@ -15,7 +15,7 @@ class Kamal::Commands::Accessory < Kamal::Commands::Base
       "--name", service_name,
       "--detach",
       "--restart", "unless-stopped",
-      "--network", "kamal",
+      *network_args,
       *config.logging_args,
       *publish_args,
       *env_args,
@@ -64,7 +64,7 @@ class Kamal::Commands::Accessory < Kamal::Commands::Base
     docker :run,
       ("-it" if interactive),
       "--rm",
-      "--network", "kamal",
+      *network_args,
       *env_args,
       *volume_args,
       image,

lib/kamal/configuration/accessory.rb

@@ -1,6 +1,8 @@
 class Kamal::Configuration::Accessory
   include Kamal::Configuration::Validation
 
+  DEFAULT_NETWORK = "kamal"
+
   delegate :argumentize, :optionize, to: Kamal::Utils
 
   attr_reader :name, :accessory_config, :env
@@ -38,6 +40,10 @@ class Kamal::Configuration::Accessory
     end
   end
 
+  def network_args
+    argumentize "--network", network
+  end
+
   def publish_args
     argumentize "--publish", port if port
   end
@@ -173,4 +179,8 @@ class Kamal::Configuration::Accessory
         accessory_config["roles"].flat_map { |role| config.role(role).hosts }
       end
     end
+
+    def network
+      accessory_config["network"] || DEFAULT_NETWORK
+    end
 end

lib/kamal/configuration/docs/accessory.yml

@@ -90,3 +90,11 @@ accessories:
     # They are not created or copied before mounting:
     volumes:
       - /path/to/mysql-logs:/var/log/mysql
+
+    # Network
+    #
+    # The network the accessory will be attached to.
+    #
+    # Defaults to kamal:
+    network: custom
+