Customizable stop wait time

Configurable via a global `stop_wait_time` option.
The default is `10` which matches Docker defaults.

README.md

@@ -333,6 +333,15 @@ servers:
 
 That'll start the job containers with `docker run ... --cap-add --cpu-count 4 ...`.
 
+### Using a different stop wait time
+
+On a new deploy, each old running container is gracefully shut down with a `SIGTERM`, and after a grace period of `10` seconds a `SIGKILL` is sent.
+You can configure this value via the `stop_wait_time` option:
+
+```yaml
+stop_wait_time: 30
+```
+
 ### Using remote builder for native multi-arch
 
 If you're developing on ARM64 (like Apple Silicon), but you want to deploy on AMD64 (x86 64-bit), you can use multi-architecture images. By default, MRSK will setup a local buildx configuration that does this through QEMU emulation. But this can be quite slow, especially on the first build.

lib/mrsk/commands/app.rb

@@ -27,10 +27,12 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
     docker :start, service_with_version_and_destination_and_role
   end
 
+  DEFAULT_STOP_WAIT_TIME = 10
+
   def stop(version: nil)
     pipe \
       version ? container_id_for_version(version) : current_container_id,
-      xargs(docker(:stop))
+      xargs(docker(:stop, "-t", config.stop_wait_time || DEFAULT_STOP_WAIT_TIME))
   end
 
   def info

lib/mrsk/configuration.rb

@@ -6,7 +6,8 @@ require "erb"
 require "net/ssh/proxy/jump"
 
 class Mrsk::Configuration
-  delegate :service, :image, :servers, :env, :labels, :registry, :builder, to: :raw_config, allow_nil: true
+  delegate :service, :image, :servers, :env, :labels, :registry, :builder, :stop_wait_time,
+    to: :raw_config, allow_nil: true
   delegate :argumentize, :argumentize_env_with_secrets, to: Mrsk::Utils
 
   attr_accessor :destination

test/commands/app_test.rb

@@ -55,13 +55,13 @@ class CommandsAppTest < ActiveSupport::TestCase
 
   test "stop" do
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web | xargs docker stop",
+      "docker ps --quiet --filter label=service=app --filter label=role=web | xargs docker stop -t 10",
       new_command.stop.join(" ")
   end
 
   test "stop with version" do
     assert_equal \
-      "docker container ls --all --filter name=app-web-123 --quiet | xargs docker stop",
+      "docker container ls --all --filter name=app-web-123 --quiet | xargs docker stop -t 10",
       new_command.stop(version: "123").join(" ")
   end