diff --git a/lower-constraints.txt b/lower-constraints.txt
index c826905a..d550e365 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -79,8 +79,9 @@ pyScss==1.3.4
 python-cinderclient==3.5.0
 python-dateutil==2.7.0
 python-glanceclient==2.9.1
+python-heatclient==1.18.0
 python-keystoneclient==3.15.0
-python-magnumclient==2.11.0
+python-magnumclient==2.15.0 # Apache-2.0
 python-mimeparse==1.6.0
 python-neutronclient==6.7.0
 python-novaclient==10.1.0
diff --git a/magnum_ui/api/heat.py b/magnum_ui/api/heat.py
new file mode 100644
index 00000000..28404580
--- /dev/null
+++ b/magnum_ui/api/heat.py
@@ -0,0 +1,62 @@
+#  Copyright 2015 Cisco Systems.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+from __future__ import absolute_import
+import logging
+
+from django.conf import settings
+
+from horizon.utils.memoized import memoized
+from openstack_dashboard.api import base
+
+from heatclient import client as heat_client
+
+LOG = logging.getLogger(__name__)
+
+
+@memoized
+def heatclient(request, password=None):
+
+    service_type = 'orchestration'
+    openstack_api_versions = getattr(settings, 'OPENSTACK_API_VERSIONS', {})
+    api_version = openstack_api_versions.get(service_type, 1)
+
+    insecure = getattr(settings, 'OPENSTACK_SSL_NO_VERIFY', False)
+    cacert = getattr(settings, 'OPENSTACK_SSL_CACERT', None)
+
+    endpoint = base.url_for(request, 'orchestration')
+    kwargs = {
+        'token': request.user.token.id,
+        'insecure': insecure,
+        'ca_file': cacert,
+        'username': request.user.username,
+        'password': password
+    }
+
+    client = heat_client.Client(api_version, endpoint, **kwargs)
+    client.format_parameters = format_parameters
+    return client
+
+
+def format_parameters(params):
+    parameters = {}
+    for count, p in enumerate(params, 1):
+        parameters['Parameters.member.%d.ParameterKey' % count] = p
+        parameters['Parameters.member.%d.ParameterValue' % count] = params[p]
+    return parameters
+
+
+def stack_get(request, stack_id):
+    return heatclient(request).stacks.get(stack_id)
diff --git a/magnum_ui/api/magnum.py b/magnum_ui/api/magnum.py
index 97de6ba8..39e17684 100644
--- a/magnum_ui/api/magnum.py
+++ b/magnum_ui/api/magnum.py
@@ -84,7 +84,7 @@ def _create_patches(old, new):
     for key in new:
         path = '/' + key
         if key in old and old[key] != new[key]:
-            if new[key] is None or new[key] is '':
+            if new[key] is None or new[key] == '':
                 patch.append({'op': 'remove', 'path': path})
             else:
                 patch.append({'op': 'replace', 'path': path,
@@ -196,6 +196,19 @@ def cluster_show(request, id):
     return magnumclient(request).clusters.get(id)
 
 
+def cluster_resize(request, cluster_id, node_count,
+                   nodes_to_remove=None, nodegroup=None):
+
+    if nodes_to_remove is None:
+        nodes_to_remove = []
+
+    # Note: Magnum client does not use any return statement so result will
+    # be None unless an exception is raised.
+    return magnumclient(request).clusters.resize(
+        cluster_id, node_count,
+        nodes_to_remove=nodes_to_remove, nodegroup=nodegroup)
+
+
 def certificate_create(request, **kwargs):
     args = {}
     for (key, value) in kwargs.items():
diff --git a/magnum_ui/api/rest/magnum.py b/magnum_ui/api/rest/magnum.py
index 5e6af047..37ef251d 100644
--- a/magnum_ui/api/rest/magnum.py
+++ b/magnum_ui/api/rest/magnum.py
@@ -12,10 +12,13 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from django.http import HttpResponseNotFound
 from django.views import generic
 
+from magnum_ui.api import heat
 from magnum_ui.api import magnum
 
+from openstack_dashboard import api
 from openstack_dashboard.api import neutron
 from openstack_dashboard.api.rest import urls
 from openstack_dashboard.api.rest import utils as rest_utils
@@ -116,6 +119,51 @@ class Cluster(generic.View):
             updated_cluster.to_dict())
 
 
+@urls.register
+class ClusterResize(generic.View):
+
+    url_regex = r'container_infra/clusters/(?P<cluster_id>[^/]+)/resize$'
+
+    @rest_utils.ajax()
+    def get(self, request, cluster_id):
+        """Get cluster details for resize"""
+        try:
+            cluster = magnum.cluster_show(request, cluster_id).to_dict()
+        except AttributeError as e:
+            print(e)
+            return HttpResponseNotFound()
+
+        stack = heat.stack_get(request, cluster["stack_id"])
+        search_opts = {"name": "%s-minion" % stack.stack_name}
+        servers = api.nova.server_list(request, search_opts=search_opts)[0]
+
+        worker_nodes = []
+        for server in servers:
+            worker_nodes.append({"name": server.name, "id": server.id})
+
+        return {"cluster": change_to_id(cluster),
+                "worker_nodes": worker_nodes}
+
+    @rest_utils.ajax(data_required=True)
+    def post(self, request, cluster_id):
+        """Resize a cluster"""
+
+        nodes_to_remove = request.DATA.get("nodes_to_remove", None)
+        nodegroup = request.DATA.get("nodegroup", None)
+        node_count = request.DATA.get("node_count")
+
+        # Result will be 'None' unless error is raised response will be '204'
+        try:
+            return magnum.cluster_resize(
+                request, cluster_id, node_count,
+                nodes_to_remove=nodes_to_remove, nodegroup=nodegroup)
+        except AttributeError as e:
+            # If cluster is not found magnum-client throws Attribute error
+            # catch and respond with 404
+            print(e)
+            return HttpResponseNotFound()
+
+
 @urls.register
 class Clusters(generic.View):
     """API for Magnum Clusters"""
diff --git a/magnum_ui/static/dashboard/container-infra/clusters/actions.module.js b/magnum_ui/static/dashboard/container-infra/clusters/actions.module.js
index fa3dfb12..9a27d07a 100644
--- a/magnum_ui/static/dashboard/container-infra/clusters/actions.module.js
+++ b/magnum_ui/static/dashboard/container-infra/clusters/actions.module.js
@@ -34,6 +34,7 @@
     'horizon.framework.util.i18n.gettext',
     'horizon.dashboard.container-infra.clusters.create.service',
     'horizon.dashboard.container-infra.clusters.delete.service',
+    'horizon.dashboard.container-infra.clusters.resize.service',
     'horizon.dashboard.container-infra.clusters.update.service',
     'horizon.dashboard.container-infra.clusters.show-certificate.service',
     'horizon.dashboard.container-infra.clusters.sign-certificate.service',
@@ -46,6 +47,7 @@
     gettext,
     createClusterService,
     deleteClusterService,
+    resizeClusterService,
     updateClusterService,
     showCertificateService,
     signCertificateService,
@@ -95,6 +97,13 @@
           text: gettext('Rotate Certificate')
         }
       })
+      .append({
+        id: 'resizeClusterAction',
+        service: resizeClusterService,
+        template: {
+          text: gettext('Resize Cluster')
+        }
+      })
       .append({
         id: 'updateClusterAction',
         service: updateClusterService,
diff --git a/magnum_ui/static/dashboard/container-infra/clusters/actions.module.spec.js b/magnum_ui/static/dashboard/container-infra/clusters/actions.module.spec.js
index 04c0d726..b3bee3b0 100644
--- a/magnum_ui/static/dashboard/container-infra/clusters/actions.module.spec.js
+++ b/magnum_ui/static/dashboard/container-infra/clusters/actions.module.spec.js
@@ -50,6 +50,16 @@
       expect(actionHasId(actions, 'rotateCertificateAction')).toBe(true);
     });
 
+    it('registers Resize Cluster as an item action', function() {
+      var actions = registry.getResourceType('OS::Magnum::Cluster').itemActions;
+      expect(actionHasId(actions, 'resizeClusterAction')).toBe(true);
+    });
+
+    it('registers Update Cluster as an item action', function() {
+      var actions = registry.getResourceType('OS::Magnum::Cluster').itemActions;
+      expect(actionHasId(actions, 'updateClusterAction')).toBe(true);
+    });
+
     it('registers Delete Cluster as an item action', function() {
       var actions = registry.getResourceType('OS::Magnum::Cluster').itemActions;
       expect(actionHasId(actions, 'deleteClusterAction')).toBe(true);
diff --git a/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.js b/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.js
new file mode 100644
index 00000000..24856b21
--- /dev/null
+++ b/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.js
@@ -0,0 +1,203 @@
+/**
+ * Copyright 2017 NEC Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+(function() {
+  'use strict';
+
+  /**
+   * @ngdoc overview
+   * @name horizon.dashboard.container-infra.clusters.resize.service
+   * @description Service for the container-infra cluster resize modal.
+   * Allows user to select new number of worker nodes and if the number
+   * is reduced, nodes to be removed can be selected from the list.
+   */
+  angular
+    .module('horizon.dashboard.container-infra.clusters')
+    .factory('horizon.dashboard.container-infra.clusters.resize.service',
+    resizeService);
+
+  resizeService.$inject = [
+    '$rootScope',
+    '$q',
+    'horizon.app.core.openstack-service-api.magnum',
+    'horizon.framework.util.actions.action-result.service',
+    'horizon.framework.util.i18n.gettext',
+    'horizon.framework.util.q.extensions',
+    'horizon.framework.widgets.form.ModalFormService',
+    'horizon.framework.widgets.toast.service',
+    'horizon.framework.widgets.modal-wait-spinner.service',
+    'horizon.dashboard.container-infra.clusters.resourceType'
+  ];
+
+  function resizeService(
+    $rootScope, $q, magnum, actionResult, gettext, $qExtensions, modal, toast, spinnerModal,
+    resourceType
+  ) {
+
+    var modalConfig, formModel;
+
+    var service = {
+      perform: perform,
+      allowed: allowed
+    };
+
+    return service;
+
+    //////////////
+
+    function perform(selected, $scope) {
+      var deferred = $q.defer();
+      spinnerModal.showModalSpinner(gettext('Loading'));
+
+      magnum.getClusterNodes(selected.id)
+        .then(onLoad)
+        .catch(hideSpinnerOnError);
+
+      function onLoad(response) {
+        formModel = getFormModelDefaults();
+        formModel.id = selected.id;
+
+        modalConfig = constructModalConfig(response.data.worker_nodes);
+
+        deferred.resolve(modal.open(modalConfig).then(onModalSubmit));
+        $scope.model = formModel;
+
+        spinnerModal.hideModalSpinner();
+      }
+
+      function hideSpinnerOnError(error) {
+        spinnerModal.hideModalSpinner();
+        return deferred.reject(error);
+      }
+
+      return deferred.promise;
+    }
+
+    function allowed() {
+      return $qExtensions.booleanAsPromise(true);
+    }
+
+    function constructModalConfig(workerNodesList) {
+      formModel.original_node_count = workerNodesList.length;
+      formModel.node_count = workerNodesList.length;
+
+      return {
+        title: gettext('Resize Cluster'),
+        schema: {
+          type: 'object',
+          properties: {
+            'node_count': {
+              type: 'number',
+              minimum: 1
+            },
+            'nodes_to_remove': {
+              type: 'array',
+              items: {
+                type: 'string'
+              },
+              minItems: 0 // Must be specified to avoid obsolete validation errors
+            }
+          }
+        },
+        form: [
+          {
+            key: 'node_count',
+            title: gettext('Node Count'),
+            placeholder: gettext('The cluster node count.'),
+            required: true,
+            validationMessage: {
+              101: gettext('You cannot resize to less than a single Worker Node.')
+            },
+            onChange: validateNodeRemovalCount
+          },
+          {
+            key: 'nodes_to_remove',
+            type: 'checkboxes',
+            title: gettext('Choose nodes to remove (Optional)'),
+            titleMap: generateNodesTitleMap(workerNodesList),
+            condition: 'model.node_count < model.original_node_count',
+            onChange: validateNodeRemovalCount,
+            validationMessage: {
+              nodeRemovalCountExceeded: gettext('You may only select as many nodes ' +
+                'as you are reducing the original node count by.')
+            }
+          }
+        ],
+        model: formModel
+      };
+    }
+
+    // Invalid when user selects more Worker Nodes (checkboxes) than is allowed to be removed
+    function validateNodeRemovalCount() {
+      var selectedNodesCount = formModel.nodes_to_remove ? formModel.nodes_to_remove.length : 0;
+      var maximumNodesCount = formModel.original_node_count - formModel.node_count;
+
+      if (selectedNodesCount <= maximumNodesCount) {
+        broadcastNodeRemovalValid();
+      } else {
+        broadcastNodeRemovalInvalid();
+      }
+
+      function broadcastNodeRemovalInvalid() {
+        $rootScope.$broadcast('schemaForm.error.nodes_to_remove',
+          'nodeRemovalCountExceeded', false);
+      }
+      function broadcastNodeRemovalValid() {
+        $rootScope.$broadcast('schemaForm.error.nodes_to_remove',
+          'nodeRemovalCountExceeded', true);
+      }
+    }
+
+    function getFormModelDefaults() {
+      return {
+        original_node_count: null,
+        node_count: null,
+        nodes_to_remove: []
+      };
+    }
+
+    function generateNodesTitleMap(nodesList) {
+      return nodesList.map(function(node) {
+        return {
+          value: node.id,
+          name: node.name
+        };
+      });
+    }
+
+    function onModalSubmit() {
+      var postRequestObject = {
+        node_count: formModel.node_count,
+        nodegroup: 'production_group'
+      };
+
+      if (formModel.node_count < formModel.original_node_count &&
+        formModel.nodes_to_remove && formModel.nodes_to_remove.length > 0) {
+        postRequestObject.nodes_to_remove = formModel.nodes_to_remove;
+      }
+
+      return magnum.resizeCluster(formModel.id, postRequestObject)
+        .then(onRequestSuccess);
+    }
+
+    function onRequestSuccess() {
+      toast.add('success', gettext('Cluster is being resized.'));
+      return actionResult.getActionResult()
+        .updated(resourceType, formModel.id)
+        .result;
+    }
+  }
+})();
diff --git a/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.spec.js b/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.spec.js
new file mode 100644
index 00000000..842df87d
--- /dev/null
+++ b/magnum_ui/static/dashboard/container-infra/clusters/resize/resize.service.spec.js
@@ -0,0 +1,114 @@
+/**
+ * Copyright 2017 NEC Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+(function() {
+  'use strict';
+
+  describe('horizon.dashboard.container-infra.clusters.resize.service', function() {
+
+    var service, $scope, $q, deferred, magnum, spinnerModal, modalConfig;
+    var selected = {
+      id: 1
+    };
+    var modal = {
+      open: function(config) {
+        deferred = $q.defer();
+        deferred.resolve(config);
+        modalConfig = config;
+
+        return deferred.promise;
+      }
+    };
+
+    ///////////////////
+
+    beforeEach(module('horizon.app.core'));
+    beforeEach(module('horizon.framework'));
+    beforeEach(module('horizon.dashboard.container-infra.clusters'));
+
+    beforeEach(module(function($provide) {
+      $provide.value('horizon.framework.widgets.form.ModalFormService', modal);
+    }));
+
+    beforeEach(inject(function($injector, _$rootScope_, _$q_) {
+      $q = _$q_;
+      $scope = _$rootScope_.$new();
+      service = $injector.get(
+        'horizon.dashboard.container-infra.clusters.resize.service');
+      magnum = $injector.get('horizon.app.core.openstack-service-api.magnum');
+      spinnerModal = $injector.get('horizon.framework.widgets.modal-wait-spinner.service');
+
+      spyOn(spinnerModal, 'showModalSpinner').and.callFake(function() {});
+      spyOn(spinnerModal, 'hideModalSpinner').and.callFake(function() {});
+
+      deferred = $q.defer();
+      deferred.resolve({data: {uuid: '1'}});
+      spyOn(magnum, 'resizeCluster').and.returnValue(deferred.promise);
+      spyOn(modal, 'open').and.callThrough();
+    }));
+
+    it('should check the policy if the user is allowed to update cluster', function() {
+      var allowed = service.allowed();
+      expect(allowed).toBeTruthy();
+    });
+
+    it('should open the modal, hide the loading spinner and check the form model',
+      inject(function($timeout) {
+        var mockWorkerNodes = [{id: "456", name: "Worker Node 1"}];
+
+        deferred = $q.defer();
+        deferred.resolve({data: {cluster: {}, worker_nodes: mockWorkerNodes}});
+        spyOn(magnum, 'getClusterNodes').and.returnValue(deferred.promise);
+
+        service.perform(selected, $scope);
+
+        $timeout(function() {
+          expect(modal.open).toHaveBeenCalled();
+          expect(spinnerModal.showModalSpinner).toHaveBeenCalled();
+          expect(spinnerModal.hideModalSpinner).toHaveBeenCalled();
+
+          // Check if the form's model skeleton is correct
+          expect(modalConfig.model.id).toBe(selected.id);
+          expect(modalConfig.model.original_node_count).toBe(mockWorkerNodes.length);
+          expect(modalConfig.model.node_count).toBe(mockWorkerNodes.length);
+          expect(modalConfig.title).toBeDefined();
+          expect(modalConfig.schema).toBeDefined();
+          expect(modalConfig.form).toBeDefined();
+        }, 0);
+
+        $timeout.flush();
+        $scope.$apply();
+      }));
+
+    it('should not open the modal due to a request error and should hide the loading spinner',
+      inject(function($timeout) {
+        deferred = $q.defer();
+        deferred.reject();
+        spyOn(magnum, 'getClusterNodes').and.returnValue(deferred.promise);
+
+        service.perform(selected, $scope);
+
+        $timeout(function() {
+          expect(modal.open).not.toHaveBeenCalled();
+          expect(spinnerModal.showModalSpinner).toHaveBeenCalled();
+          expect(spinnerModal.hideModalSpinner).toHaveBeenCalled();
+        }, 0);
+
+        $timeout.flush();
+        $scope.$apply();
+      }));
+  });
+})();
diff --git a/magnum_ui/static/dashboard/container-infra/magnum.service.js b/magnum_ui/static/dashboard/container-infra/magnum.service.js
index 756c2a50..2c03e3a7 100644
--- a/magnum_ui/static/dashboard/container-infra/magnum.service.js
+++ b/magnum_ui/static/dashboard/container-infra/magnum.service.js
@@ -33,6 +33,8 @@
       updateCluster: updateCluster,
       getCluster: getCluster,
       getClusters: getClusters,
+      getClusterNodes: getClusterNodes,
+      resizeCluster: resizeCluster,
       deleteCluster: deleteCluster,
       deleteClusters: deleteClusters,
       createClusterTemplate: createClusterTemplate,
@@ -87,6 +89,21 @@
         });
     }
 
+    function getClusterNodes(id) {
+      return apiService.get('/api/container_infra/clusters/' + id + '/resize')
+        .error(function() {
+          toastService.add('error', gettext('Unable to get cluster\'s working nodes.'));
+        });
+    }
+
+    function resizeCluster(id, params) {
+      return apiService.post('/api/container_infra/clusters/' + id + '/resize', params)
+        .error(function() {
+          var msg = gettext('Unable to resize given cluster id: %(id)s.');
+          toastService.add('error', interpolate(msg, { id: id }, true));
+        });
+    }
+
     function deleteCluster(id, suppressError) {
       var promise = apiService.delete('/api/container_infra/clusters/', [id]);
       return suppressError ? promise : promise.error(function() {
diff --git a/magnum_ui/static/dashboard/container-infra/magnum.service.spec.js b/magnum_ui/static/dashboard/container-infra/magnum.service.spec.js
index ff6bd805..cb3f59dd 100644
--- a/magnum_ui/static/dashboard/container-infra/magnum.service.spec.js
+++ b/magnum_ui/static/dashboard/container-infra/magnum.service.spec.js
@@ -68,6 +68,32 @@
         "path": "/api/container_infra/clusters/",
         "error": "Unable to retrieve the clusters."
       },
+      {
+        "func": "getClusterNodes",
+        "method": "get",
+        "path": "/api/container_infra/clusters/123/resize",
+        "error": "Unable to get cluster\'s working nodes.",
+        "testInput": ["123"]
+      },
+      {
+        "func": "resizeCluster",
+        "method": "post",
+        "path": "/api/container_infra/clusters/123/resize",
+        "data": {
+          "node_count": 2,
+          "nodes_to_remove": ["456"],
+          "nodegroup": "production_group"
+        },
+        "error": "Unable to resize given cluster id: 123.",
+        "testInput": [
+          "123",
+          {
+            "node_count": 2,
+            "nodes_to_remove": ["456"],
+            "nodegroup": "production_group"
+          }
+        ]
+      },
       {
         "func": "deleteCluster",
         "method": "delete",
diff --git a/releasenotes/notes/resize-actions-1436a2a0dccbd13b.yaml b/releasenotes/notes/resize-actions-1436a2a0dccbd13b.yaml
new file mode 100644
index 00000000..d90bffe1
--- /dev/null
+++ b/releasenotes/notes/resize-actions-1436a2a0dccbd13b.yaml
@@ -0,0 +1,10 @@
+---
+features:
+  - >
+    REST Api and Angular service for resizing clusters is addedd. Angular view
+    supports resizing number of worker nodes only.
+other:
+  - >
+    Bump python-magnumclient lowerconstraint to >= 2.15.0
+  - >
+    Adds python-heatclient >= 1.18.0 dependency
diff --git a/requirements.txt b/requirements.txt
index 87377a96..b62bcb6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,7 @@
 #
 # PBR should always appear first
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-python-magnumclient>=2.11.0 # Apache-2.0
+python-magnumclient>=2.15.0 # Apache-2.0
+python-heatclient>=1.18.0
 
-horizon>=15.0.0.0b1 # Apache-2.0
+horizon>=15.0.0.0b1 # Apache-2.0
\ No newline at end of file