Add chef_client_cron resource from chef-client cookbook

Add the chef_client_cron resource so users can manage chef-client as a
cron job out of the box.

Signed-off-by: Tim Smith <tsmith@chef.io>

2 files changed, 79 insertions, 0 deletions

diff --git a/lib/chef/resource/chef_client_cron.rb b/lib/chef/resource/chef_client_cron.rb
new file mode 100644
index 0000000000..cadb8f1af7
--- /dev/null
+++ b/lib/chef/resource/chef_client_cron.rb
@@ -0,0 +1,78 @@
+#
+# Copyright:: 2020, Chef Software Inc.
+#
+# 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_relative "../resource"
+
+class Chef
+  class Resource
+    class ChefClientCron < Chef::Resource
+      unified_mode true
+
+      provides :chef_client_cron
+
+      description "Use the chef_client_cron resource to setup the Chef Infra Client to run as a cron job."
+      introduced "16.0"
+
+      property :user, String, default: 'root'
+
+      property :minute, [String, Integer], default: '0,30'
+      property :hour, [String, Integer], default: '*'
+      property :weekday, [String, Integer], default: '*'
+      property :mailto, String
+
+      property :job_name, String, default: 'chef-client'
+      property :splay, [Integer, String], default: 300
+
+      property :env_vars, Hash
+
+      property :config_directory, String, default: '/etc/chef'
+      property :log_directory, String, default: lazy { platform?('mac_os_x') ? '/Library/Logs/Chef' : '/var/log/chef' }
+      property :log_file_name, String, default: 'client.log'
+      property :append_log_file, [true, false], default: false
+      property :chef_binary_path, String, default: '/opt/chef/bin/chef-client'
+      property :daemon_options, Array, default: []
+
+      action :add do
+        cron_d new_resource.job_name do
+          minute  new_resource.minute
+          hour    new_resource.hour
+          weekday new_resource.weekday
+          mailto  new_resource.mailto if new_resource.mailto
+          user    new_resource.user
+          command cron_command
+        end
+      end
+
+      action :remove do
+        cron_d new_resource.job_name do
+          action :delete
+        end
+      end
+
+      action_class do
+        def cron_command
+          cmd = ''
+          cmd << "/bin/sleep #{splay_sleep_time(new_resource.splay)}; "
+          cmd << "#{new_resource.env_vars} " if new_resource.env_vars
+          cmd << "#{new_resource.chef_binary_path} #{new_resource.daemon_options.join(' ')}"
+          cmd << " #{new_resource.append_log_file ? '>>' : '>'} #{::File.join(new_resource.log_directory, new_resource.log_file_name)} 2>&1"
+          cmd << ' || echo "Chef Infra Client execution failed"' if new_resource.mailto
+          cmd
+        end
+      end
+    end
+  end
+end
diff --git a/lib/chef/resources.rb b/lib/chef/resources.rb
index 1fc707f642..2256804eb7 100644
--- a/lib/chef/resources.rb
+++ b/lib/chef/resources.rb
@@ -27,6 +27,7 @@ require_relative "resource/batch"
 require_relative "resource/breakpoint"
 require_relative "resource/build_essential"
 require_relative "resource/cookbook_file"
+require_relative "resource/chef_client_cron"
 require_relative "resource/chef_gem"
 require_relative "resource/chef_handler"
 require_relative "resource/chef_sleep"