Added tests for network configuration option

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
+

lib/kamal/configuration/docs/configuration.yml

@@ -176,3 +176,10 @@ logging:
 # Alias configuration, see kamal docs alias:
 aliases:
   ...
+
+# Network
+#
+# The network the application will be attached to.
+#
+# Defaults to kamal:
+network: custom

lib/kamal/configuration/docs/proxy.yml

@@ -103,3 +103,10 @@ proxy:
   # By default, kamal-proxy will not forward the headers if the `ssl` option is set to `true`, and
   # will forward them if it is set to `false`.
   forward_headers: true
+
+  # Network
+  #
+  # The network the proxy container will be attached to.
+  #
+  # Defaults to kamal:
+  network: custom

test/configuration/accessory_test.rb

@@ -152,4 +152,13 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
   test "options" do
     assert_equal [ "--cpus", "\"4\"", "--memory", "\"2GB\"" ], @config.accessory(:redis).option_args
   end
+
+  test "network_args default" do
+    assert_equal [ "--network", "kamal" ], @config.accessory(:mysql).network_args
+  end
+
+  test "network_args with configured options" do
+    @deploy[:accessories]["mysql"]["network"] = "database"
+    assert_equal [ "--network", "database" ], @config.accessory(:mysql).network_args
+  end
 end

test/configuration/proxy_test.rb

@@ -38,6 +38,15 @@ class ConfigurationProxyTest < ActiveSupport::TestCase
     assert_not config.proxy.ssl?
   end
 
+  test "network_args defaults" do
+    assert_equal [ "--network", "kamal" ], config.proxy.network_args
+  end
+
+  test "network_args with configured options" do
+    @deploy[:proxy] = { "network" => "example" }
+    assert_equal [ "--network", "example" ], config.proxy.network_args
+  end
+
   private
     def config
       Kamal::Configuration.new(@deploy)

test/configuration_test.rb

@@ -217,6 +217,15 @@ class ConfigurationTest < ActiveSupport::TestCase
     assert_equal [ "--log-driver", "\"local\"", "--log-opt", "max-size=\"100m\"", "--log-opt", "max-file=\"5\"" ], config.logging_args
   end
 
+  test "network_args default" do
+    assert_equal [ "--network", "kamal" ], @config.network_args
+  end
+
+  test "network_args with configured options" do
+    config = Kamal::Configuration.new(@deploy.tap { |c| c.merge!(network: "custom") })
+    assert_equal [ "--network", "custom" ], config.network_args
+  end
+
   test "erb evaluation of yml config" do
     config = Kamal::Configuration.create_from config_file: Pathname.new(File.expand_path("fixtures/deploy.erb.yml", __dir__))
     assert_equal "my-user", config.registry.username