feat(webhooks): add support for service update webhooks (#2161)

* Initial pass at adding webhook controller and routes

* Moving some objects around

* Cleaning up comments

* Fixing syntax, switching to using the docker sdk over building an http client

* Adding delete and list functionality

* Updating the handler to use the correct permissions. Updating some comments

* Fixing some comments

* Code cleanup per pull request comments

* Cleanup per PR feedback. Syntax error fix

* Initial creation of webhook app code

* Moving ClientFactory creation out of handler code and instead using the one created by the main process. Removing webhookInspect method and updating the list function to use json filters

* Delete now works on the webhook ID vs service ID

* WIP - Service creates a webhook. Display will show an existing webhook URL.

* Adding the webhook field to the service view. There is now the ability to add or remove a webhook from a service

* Moving all api calls to be webhooks vs webhook

* Code cleanup. Moving all api calls to be webhooks vs webhook

* More conversion of webhook to webhooks?

* Moving UI elements around. Starting function for copying to clipboard

* Finalizing function for copying to clipboard. Adding button that calls function and copies webhook to clipboard.

* Fixing UI issues. Hiding field entirely when there is no webhook

* Moving URL crafting to a helper method. The edit pane for service now creates/deletes webhooks immidiately.

* style(service-details): update webhook line

* feat(api): strip sha when updating an image via the update webhook

* Fixing up some copy. Only displying the port if it is not http or https

* Fixing tooltip copy. Setting the forceupdate to be true to require an update to occur

* Fixing code climate errors

* Adding WebhookType field and setting to ServiceWebhook for new webhooks. Renaming ServiceID to resourceID so future work can add new types of webhooks in other resource areas.

* Adding the webhook type to the payload to support more types of webhooks in the future. Setting the type correctly when creating one for a service

* feat(webhooks): changes related to webhook management

* API code cleanup, removing unneeded functions, and updating validation logic

* Incorrectly ignoring the error that the webhook did not exist

* Re-adding missing error handling. Changing error response to be a 404 vs 500 when token can't find an object

* fix(webhooks): close Docker client after service webhook execution

app/docker/components/datatables/services-datatable/actions/servicesDatatableActionsController.js

@@ -1,6 +1,6 @@
 angular.module('portainer.docker')
-.controller('ServicesDatatableActionsController', ['$state', 'ServiceService', 'ServiceHelper', 'Notifications', 'ModalService', 'ImageHelper',
-function ($state, ServiceService, ServiceHelper, Notifications, ModalService, ImageHelper) {
+.controller('ServicesDatatableActionsController', ['$q', '$state', 'ServiceService', 'ServiceHelper', 'Notifications', 'ModalService', 'ImageHelper','WebhookService','EndpointProvider',
+function ($q, $state, ServiceService, ServiceHelper, Notifications, ModalService, ImageHelper, WebhookService, EndpointProvider) {
 
   this.scaleAction = function scaleService(service) {
     var config = ServiceHelper.serviceToConfig(service.Model);
@@ -71,7 +71,14 @@ function ($state, ServiceService, ServiceHelper, Notifications, ModalService, Im
   function removeServices(services) {
     var actionCount = services.length;
     angular.forEach(services, function (service) {
+
       ServiceService.remove(service)
+      .then(function success() {
+        return WebhookService.webhooks(service.Id, EndpointProvider.endpointID());
+      })
+      .then(function success(data) {
+        return $q.when(data.length !== 0 && WebhookService.deleteWebhook(data[0].Id));
+      })
       .then(function success() {
         Notifications.success('Service successfully removed', service.Name);
       })