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Agree, an Ansible playbook would have easily suffice.

• flo123456 8y ago
  While I do like Ansible, it‘s not really the right tool for a tutorial about sensors. It‘s a lot easier to explain that you need to pull & run some image than it is to explain installing python, get your ansible host configuration right and then run a playbook. There’s just a lot more variance (and therefore margin for error) that you don’t want to deal with when you’re explaining something else entirely.
• joshvm 8y ago
  One downside of Ansible on the Pi is that a lot of stuff involves building from scratch, because aren't armhf packages available, or what's available in apt is hopelessly outdated. I have a stack at work that takes a day to build on the hardware. With Docker I can build once and pull the image later. I guess you could do similar with Ansible and copy build artefacts over, but Docker is a simpler solution.