Chef - Chef-Client as Daemon


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Running Chef-Client as daemon helps in knowing the state of all the nodes at any point of time. This help in running the Chef-Client at any point of time.

Pre-requisites

The node should be registered with Chef server and it should be running Chef-Client without any error.

Chef-Client in Daemon Mode

Start Chef-Client in daemon mode, running every 30 minutes.

user@server:~$ sudo chef-client -i 1800 

In the above code, – i enables to run the Chef-Client in daemon mode on the required node and 1800 seconds define that the Chef-Client daemon should run in every 30 minutes.

Validating Daemon Run

Validate that the Chef-Client is running as a daemon.

user@server:~$ ps auxw | grep chef-client 

The above command will grep the running daemon process of Chef-Client.

Other Ways

Instead of running Chef-Client as a daemon, we can run the same as a cron job.

user@server:~$ subl /etc/cron.d/chef_client 
PATH=/usr/local/bin:/usr/bin:/bin 
# m h dom mon dow user command 
*/15 * * * * root chef-client -l warn | grep -v 'retrying [1234]/5 in' 

The above cron job will run after every 15 minutes.



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