feat(services): rollback service capability (#3057)

* feat(services): rollback service capability

* refactor(services): notification reword

Co-Authored-By: William <william.conquest@portainer.io>

* refactor(services): remove TODO comment + add note on rollback capability

* fix(services): service update rpc error version out of sync

* feat(services): confirmation modal on rollback

* feat(services): rpc error no previous spec message

app/docker/rest/service.js

@@ -14,19 +14,13 @@ function ServiceFactory($resource, API_ENDPOINT_ENDPOINTS, EndpointProvider, Htt
       method: 'POST', params: {action: 'create'},
       headers: {
         'X-Registry-Auth': HttpRequestHelper.registryAuthenticationHeader,
-        // TODO: This is a temporary work-around that allows us to leverage digest pinning on
-        // the Docker daemon side. It has been moved client-side since Docker API version > 1.29.
-        // We should introduce digest pinning in Portainer as well.
         'version': '1.29'
       },
       ignoreLoadingBar: true
     },
     update: {
-      method: 'POST', params: { id: '@id', action: 'update', version: '@version' },
+      method: 'POST', params: { id: '@id', action: 'update', version: '@version', rollback: '@rollback' },
       headers: {
-        // TODO: This is a temporary work-around that allows us to leverage digest pinning on
-        // the Docker daemon side. It has been moved client-side since Docker API version > 1.29.
-        // We should introduce digest pinning in Portainer as well.
         'version': '1.29'
       }
     },

app/docker/services/serviceService.js

@@ -58,8 +58,17 @@ function ServiceServiceFactory($q, Service, ServiceHelper, TaskService, Resource
     return deferred.promise;
   };
 
-  service.update = function(service, config) {
+  service.update = function(serv, config, rollback) {
-    return Service.update({ id: service.Id, version: service.Version }, config).$promise;
+    return service.service(serv.Id).then((data) => {
+      const params = {
+        id: serv.Id,
+        version: data.Version
+      };
+      if (rollback) {
+        params.rollback = rollback
+      }
+      return Service.update(params, config).$promise;
+    });
   };
 
   service.logs = function(id, stdout, stderr, timestamps, since, tail) {

app/docker/views/services/edit/service.html

@@ -91,11 +91,18 @@
           </tr>
             <tr authorization="DockerServiceLogs, DockerServiceUpdate, DockerServiceDelete">
               <td colspan="2">
+                <p class="small text-muted">
+                  Note: you can only rollback one level of changes. Clicking the rollback button without making a new change will undo your previous rollback
+                <p>
                 <a authorization="DockerServiceLogs" ng-if="applicationState.endpoint.apiVersion >= 1.30" class="btn btn-primary btn-sm" type="button" ui-sref="docker.services.service.logs({id: service.Id})"><i class="fa fa-file-alt space-right" aria-hidden="true"></i>Service logs</a>
                 <button authorization="DockerServiceUpdate" type="button" class="btn btn-primary btn-sm" ng-disabled="state.updateInProgress || isUpdating" ng-click="forceUpdateService(service)" button-spinner="state.updateInProgress" ng-if="applicationState.endpoint.apiVersion >= 1.25">
                   <span ng-hide="state.updateInProgress"><i class="fa fa-sync space-right" aria-hidden="true"></i>Update the service</span>
                   <span ng-show="state.updateInProgress">Update in progress...</span>
                 </button>
+                <button authorization="DockerServiceUpdate" type="button" class="btn btn-primary btn-sm" ng-disabled="state.rollbackInProgress || isUpdating" ng-click="rollbackService(service)" button-spinner="state.rollbackInProgress" ng-if="applicationState.endpoint.apiVersion >= 1.25">
+                  <span ng-hide="state.rollbackInProgress"><i class="fa fa-undo space-right" aria-hidden="true"></i>Rollback the service</span>
+                  <span ng-show="state.rollbackInProgress">Rollback in progress...</span>
+                </button>
                 <button authorization="DockerServiceDelete" type="button" class="btn btn-danger btn-sm" ng-disabled="state.deletionInProgress || isUpdating" ng-click="removeService()" button-spinner="state.deletionInProgress">
                   <span ng-hide="state.deletionInProgress"><i class="fa fa-trash-alt space-right" aria-hidden="true"></i>Delete the service</span>
                   <span ng-show="state.deletionInProgress">Deletion in progress...</span>

app/docker/views/services/edit/serviceController.js

@@ -22,7 +22,8 @@ function ($q, $scope, $transition$, $state, $location, $timeout, $anchorScroll,
 
   $scope.state = {
     updateInProgress: false,
-    deletionInProgress: false
+    deletionInProgress: false,
+    rollbackInProgress: false,
   };
 
   $scope.tasks = [];
@@ -281,7 +282,7 @@ function ($q, $scope, $transition$, $state, $location, $timeout, $anchorScroll,
     return hasChanges;
   };
 
-  $scope.updateService = function updateService(service) {
+  function buildChanges(service) {
     var config = ServiceHelper.serviceToConfig(service.Model);
     config.Name = service.Name;
     config.Labels = LabelHelper.fromKeyValueToLabelHash(service.ServiceLabels);
@@ -361,8 +362,55 @@ function ($q, $scope, $transition$, $state, $location, $timeout, $anchorScroll,
       Mode: (config.EndpointSpec && config.EndpointSpec.Mode) || 'vip',
       Ports: service.Ports
     };
+    return service, config;
+  }
 
-    Service.update({ id: service.Id, version: service.Version }, config, function (data) {
+  function rollbackService(service) {
+    $scope.state.rollbackInProgress = true;
+    let config = {};
+    service, config = buildChanges(service);
+    ServiceService.update(service, config, 'previous')
+    .then(function (data) {
+      if (data.message && data.message.match(/^rpc error:/)) {
+        Notifications.error(data.message, 'Error');
+      } else {
+        Notifications.success('Success', 'Service successfully rolled back');
+        $scope.cancelChanges({});
+        initView();
+      }
+    }).catch(function (e) {
+      if (e.data.message && e.data.message.includes('does not have a previous spec')) {
+        Notifications.error('Failure', { message: 'No previous config to rollback to.' });
+      } else {
+        Notifications.error('Failure', e, 'Unable to rollback service');
+      }
+    }).finally(function () {
+      $scope.state.rollbackInProgress = false;
+    });
+  }
+
+  $scope.rollbackService = function(service) {
+    ModalService.confirm({
+      title: 'Rollback service',
+      message: 'Are you sure you want to rollback?',
+      buttons: {
+        confirm: {
+          label: 'Yes',
+          className: 'btn-danger'
+        }
+      },
+      callback: function onConfirm(confirmed) {
+        if(!confirmed) { return; }
+        rollbackService(service);
+      }
+    });
+  };
+
+  $scope.updateService = function updateService(service) {
+    let config = {};
+    service, config = buildChanges(service);
+    ServiceService.update(service, config)
+    .then(function (data) {
       if (data.message && data.message.match(/^rpc error:/)) {
         Notifications.error(data.message, 'Error');
       } else {