Just two days ago, resin.io announced balena their new, moby based container engine. Basically, it is a Docker-dropin-replacement for IoT Devices: It is compatible with Docker and Docker Hub, gains a lot of stabilty with atomic pulls, more conservative flash memory use - as well as smaller updates due to true container delta pulls. Also, it comes bundled as single file, is smaller in size and as easy to use as Docker. So - a very good bundle.
However, this comes with the disadvantage of losing Plugin support, Swarm, Cloud logging, Overlay networking and Non-boltdb backed stores - which is a small price to pay, as none of these features are really needed in an IoT scenario.
balena is going to replace Docker in resin.io and resinOS in the near future - but I wanted to testdrive it right now, which ended up in me pluggin my Raspberry Pi 3 inflight from Zurich to Copenhagen and getting it "flying" ;).
To get it working, little is needed :):
1.) Download and install the latest Raspbian image (Stretch Lite should do the trick)
2.) Login to the RPi and run the installer: curl -sfL https://balena.io/install.sh | sh
(Always check the file before running it to shell, to be sure nothing bad happens!)
3.)
sudo balenad &
4.) Now you can use balena like docker with the command sudo balena
The whole thing works pretty good - this short scrible is just to get it working for using it in a hackish way - a real tutorial will come as soon as I get the time to make it really persistent and auto-starting... But.. Well ;). Living on the edge comes with sacrifices :).
If you're on Docker Con and want to meet up, just send me a message via Twitter, E-Mail or the Hallway Track - see you soon ;)!