Added network configuration option to application, proxy and accessory sections

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/commands/app.rb

@@ -18,7 +18,7 @@ class Kamal::Commands::App < Kamal::Commands::Base
       "--detach",
       "--restart unless-stopped",
       "--name", container_name,
-      "--network", "kamal",
+      *config.network_args,
       *([ "--hostname", hostname ] if hostname),
       "-e", "KAMAL_CONTAINER_NAME=\"#{container_name}\"",
       "-e", "KAMAL_VERSION=\"#{config.version}\"",

lib/kamal/commands/app/execution.rb

@@ -11,7 +11,7 @@ module Kamal::Commands::App::Execution
     docker :run,
       ("-it" if interactive),
       "--rm",
-      "--network", "kamal",
+      *config.network_args,
       *role&.env_args(host),
       *argumentize("--env", env),
       *config.volume_args,

lib/kamal/configuration.rb

@@ -18,6 +18,7 @@ class Kamal::Configuration
   PROXY_HTTP_PORT = 80
   PROXY_HTTPS_PORT = 443
   PROXY_LOG_MAX_SIZE = "10m"
+  NETWORK = "kamal"
 
   class << self
     def create_from(config_file:, destination: nil, version: nil)
@@ -193,6 +194,10 @@ class Kamal::Configuration
     logging.args
   end
 
+  def network_args
+    argumentize "--network", network
+  end
+
 
   def readiness_delay
     raw_config.readiness_delay || 7
@@ -297,6 +302,10 @@ class Kamal::Configuration
   end
 
   private
+    def network
+      raw_config["network"] || NETWORK
+    end
+
     # Will raise ArgumentError if any required config keys are missing
     def ensure_destination_if_required
       if require_destination? && destination.nil?

lib/kamal/configuration/accessory.rb

@@ -1,6 +1,8 @@
 class Kamal::Configuration::Accessory
   include Kamal::Configuration::Validation
 
+  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"] || NETWORK
+    end
 end