Added support for setting node policy name and group from knife

Signed-off-by: piyushawasthi <piyush.awasthi@msystechnologies.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/lib/chef/knife/node_policy_set.rb b/lib/chef/knife/node_policy_set.rb
new file mode 100644
index 0000000000..404446fe0e
--- /dev/null
+++ b/lib/chef/knife/node_policy_set.rb
@@ -0,0 +1,79 @@
+#
+# Author:: Piyush Awasthi (<piyush.awasthi@chef.io>)
+# Copyright:: Copyright 2017-2018, Chef Software Inc.
+# License:: Apache License, Version 2.0
+#
+# 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.
+#
+
+require "chef/knife"
+
+class Chef
+  class Knife
+    class NodePolicySet < Knife
+
+      deps do
+        require "chef/node"
+        require "chef/json_compat"
+      end
+
+      banner "knife node policy set NODE POLICY_GROUP POLICY_NAME (options)"
+
+      def run
+        validate_node!
+        validate_options!
+        node = Chef::Node.load(@name_args[0])
+        set_policy(node)
+        if node.save
+          ui.info "Successfully set the policy on node #{node.name}"
+        else
+          ui.info "Error in updating node #{node.name}"
+        end
+      end
+
+      private
+
+      # Set policy name and group to node
+      def set_policy(node)
+        policy_group, policy_name = @name_args[1..-1]
+        node.policy_name  = policy_name
+        node.policy_group = policy_group
+      end
+
+      # Validate policy name and policy group
+      def validate_options!
+        if incomplete_policyfile_options?
+          ui.error("Policy group and name must be specified together")
+          exit 1
+        end
+        true
+      end
+
+      # Validate node pass in CLI
+      def validate_node!
+        if @name_args[0].nil?
+          ui.error("You must specify a node name")
+          show_usage
+          exit 1
+        end
+      end
+
+      # True if one of policy_name or policy_group was given, but not both
+      def incomplete_policyfile_options?
+        policy_group, policy_name = @name_args[1..-1]
+        (policy_group.nil? || policy_name.nil? || @name_args[1..-1].size > 2)
+      end
+
+    end
+  end
+end