Fix issue of having to run chef twice

When the cookbook is run for the first time, start the cloudwatch agent overwrites the .json configuration.
This commit allows the config-translator to run prior to starting the service for the first time.

libraries/agent_installer.rb

@@ -105,10 +105,32 @@ class AgentInstaller < Chef::Resource
       end
 
       if new_resource.json_config
-        template ::File::join(config_path, node['aws_cloudwatch']['config']['json_file_name']) do
+        json_path = "#{::File::join(config_path, node['aws_cloudwatch']['config']['json_file_name'])}"
+        agent_tom_path = "#{::File::join(config_path, 'amazon-cloudwatch-agent.toml')}"
+        common_path = "#{::File::join(config_path, node['aws_cloudwatch']['config']['file_name'])}"
+        template json_path do
           action    :create
           source    new_resource.json_config
         end
+        script 'amazon-cloudwatch-agent-config-translator' do
+          action :run
+          not_if { ::File.exists?(agent_tom_path) }
+          case node[:platform]
+            when 'windows'
+              # interpreter "powershell"
+              # # TODO: Powershell draft
+              # code <<-EOH
+              #   ./amazon-cloudwatch-agent-ctl.ps1 -a start -m auto
+              # EOH
+            else
+              interpreter "bash"
+              code <<-EOH
+                res="$(sudo /opt/aws/amazon-cloudwatch-agent/bin/config-translator --input #{json_path} --output #{agent_tom_path} --mode auto --config #{common_path})"
+                echo "$res" | grep 'Valid Json input schema.'
+                exit $?
+              EOH
+          end
+        end
       end
     end
 

metadata.rb

@@ -2,7 +2,7 @@
 maintainer 'Gennady Potapov'
 license 'Apache-2.0'
 description 'Provides aws_cloudwatch_agent resource'
-version '1.0.0'
+version '1.0.1'
 chef_version '>= 12.14' if respond_to?(:chef_version)
 
 supports 'ubuntu', '= 14.04'