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I have one task in my playbook that I want to run on only one host at a time. The rest of the tasks I want to honor the --forks option. Is this possible?
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The easiest way to run only one task in Ansible Playbook is using the tags statement parameter of the “ansible-playbook” command. The default behavior is to execute all the tags in your Playbook with --tags all .
Ansible uses batches for task execution, which are controlled by a parameter called forks . The default value for forks is 5, which means Ansible executes a task on the first five hosts, waits for the task to complete, and then takes the next batch of five hosts, and so on.
Using the --limit parameter of the ansible-playbook command is the easiest option to limit the execution of the code to only one host. The advantage is that you don't need to edit the Ansible Playbook code before executing to only one host.
Yes checkout rolling updates
specifically you can add a "serial: x" parameter for a play where x is the number of forks
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