Add kamal app open command

To open the app in a web browser

lib/kamal/cli/app.rb

@@ -227,6 +227,24 @@ def logs
  end
  end
 
+ desc "open", "open app in a web browser"
+ def open
+ host = KAMAL.primary_role.proxy.hosts.first || KAMAL.primary_host
+ protocol = KAMAL.primary_role.ssl? ? "https" : "http"
+ cmd =
+ case RbConfig::CONFIG["host_os"]
+ when /mswin|mingw|cygwin/ then "start"
+ when /darwin/ then "open"
+ when /linux|bsd/ then "xdg-open"
+ end
+
+ if cmd
+ system(cmd, "#{protocol}://#{host}")
+ else
+ say "Could not detect OS browser"
+ end
+ end
+
  desc "remove", "Remove app containers and images from servers"
  def remove
  with_lock do

test/cli/app_test.rb

@@ -235,6 +235,20 @@ class CliAppTest < CliTestCase
  end
  end
 
+ test "open with proxy host domain" do
+ RbConfig::CONFIG.stubs(:[]).with("host_os").returns("linux")
+ Object.any_instance.expects(:system).with("xdg-open", "https://app.example.com")
+
+ run_command("open", config: :with_proxy_host)
+ end
+
+ test "open with primary host IP" do
+ RbConfig::CONFIG.stubs(:[]).with("host_os").returns("linux")
+ Object.any_instance.expects(:system).with("xdg-open", "http://1.1.1.1")
+
+ run_command("open")
+ end
+
  test "remove" do
  run_command("remove").tap do |output|
  assert_match /#{Regexp.escape("sh -c 'docker ps --latest --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --filter ancestor=$(docker image ls --filter reference=dhh/app:latest --format '\\''{{.ID}}'\\'') ; docker ps --latest --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting' | head -1 | xargs docker stop")}/, output

test/fixtures/deploy_with_proxy_host.yml

@@ -0,0 +1,13 @@
+service: app
+image: dhh/app
+servers:
+ web:
+ - "1.1.1.1"
+proxy:
+ ssl: true
+ host: app.example.com
+registry:
+ username: user
+ password: pw
+builder:
+ arch: amd64