Add the proxy/ssl config and pass on to kamal-proxy

test/configuration/proxy_test.rb

@@ -0,0 +1,25 @@
+require "test_helper"
+
+class ConfigurationEnvTest < ActiveSupport::TestCase
+  setup do
+    @deploy = {
+      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" },
+      builder: { "arch" => "amd64" }, servers: [ "1.1.1.1" ]
+    }
+  end
+
+  test "ssl with host" do
+    @deploy[:proxy] = { "ssl" => true, "host" => "example.com" }
+    assert_equal true, config.proxy.ssl?
+  end
+
+  test "ssl with no host" do
+    @deploy[:proxy] = { "ssl" => true }
+    assert_raises(Kamal::ConfigurationError) { config.proxy.ssl? }
+  end
+
+  private
+    def config
+      Kamal::Configuration.new(@deploy)
+    end
+end