add healthcheck interval option

README.md

@@ -703,6 +703,7 @@ healthcheck:
   path: /healthz
   port: 4000
   max_attempts: 7
+  interval: 20s
 ```
 
 This will ensure your application is configured with a traefik label for the healthcheck against `/healthz` and that the pre-deploy healthcheck that MRSK performs is done against the same path on port 4000.

lib/mrsk/configuration/role.rb

@@ -37,7 +37,7 @@ class Mrsk::Configuration::Role
 
   def health_check_args
     if health_check_cmd.present?
-      optionize({ "health-cmd" => health_check_cmd, "health-interval" => "1s" })
+      optionize({ "health-cmd" => health_check_cmd, "health-interval" => health_check_interval })
     else
       []
     end
@@ -50,6 +50,13 @@ class Mrsk::Configuration::Role
     options["cmd"] || http_health_check(port: options["port"], path: options["path"])
   end
 
+  def health_check_interval
+    options = specializations["healthcheck"] || {}
+    options = config.healthcheck.merge(options) if running_traefik?
+
+    options["interval"] || "1s"
+  end
+
   def cmd
     specializations["cmd"]
   end