Provide an API to run bolt plans

[bastelfreak]

Use Case

After some discussions a while back on Slack my understanding is that the bolt-server cannot run plans? As a user I would love to have this functionality to compete with other solutions, like ansible semaphore.

Describe the Solution You Would Like

An API to start/stop/view status of plans and tasks.

Describe Alternatives You've Considered

Building a wrapper around the bolt CLI, but that's so so hacky and not optimal.

Additional Context

I see more and more PE/Open source customers switching to Ansible for orchestration, because in that ecosystem I've several options for a Web UI and API.