Format and profile the ansible provisioner tasks during packer build

Ansible allows yaml formatting for the output with stdout_callback. It also provides callback plugins that can profile a role or a task. We need to enable them in our config.

For context, I was trying to measure the time taken by a task or a role in ansible during a packer build. Currently, the packer timestamps provided are the only way to measure the time taken by tasks, roles, and playbooks. Since packer produces machine-readable format the timestamps are in epoch. It takes extra effort to measure the time taken by a task or to know what time the task was run. willshould help with these difficulties.

added Sprint 25-12 label

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changed title from Format the ansible output seen in packer build logs to Format the ansible provisioner output seen in packer build logs

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assigned to @atlurie

changed title from Format the ansible provisioner output seen in packer build logs to Format the ansible provisioner during packer build

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mentioned in merge request !207 (merged)

added Sprint 25-13 label and removed Sprint 25-12 label

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changed title from Format the ansible provisioner during packer build to Format the ansible provisioner output during packer build

Here is a comparison of the before and after the ansible config changes to format the ansible provisioner output in packer

Before:

After:

Here you can see the roles and tasks being profiled. Note that the first block presents roles and the second block presents tasks in the descending order of time taken to run. You can also see the total time taken to run all the roles in a playbook.

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