Devops Engineer
10 Finsbury Square, London, UK
3d ago

We load Linux and our software on a hard drive that goes into an Intel NUC or a Gigabyte Brix MiniPC. Presently, we use debootstrap and ansible to prepare the hard drive and then ansible to keep it provisioned / updated remotely over OpenVPN.

This works, but has some issues that need to be addressed : - Risk of the root filesystem becoming corrupt during unsafe shutdown (something that currently happens a few times per month).

  • Presently impossible for endusers to load the software themselves, as we can’t provide a ready image file to load with something like : dd if image-
  • file of / dev / target - Operating system updates are unsafe as you are modifying the one single root filesystem. Key experience required :

  • Experience building embedded linux bootable image files or firmware with Yocto, OpenWRT, Buildroot or equivalent.
  • Alternatively, experience deploying systems using embedded / IoT distributions such as : Resin.os, Ubuntu Core, CoreOS, RancherOS, Redhat Atomic, Mesosphere DCOS, VMware Photon or similar.
  • Experience working with read only root filesystems - in this case the requirement is to have 2 root filesystems, so there is only 1 clean one to revert to at any time.
  • Experience deploying over the air firmware / OS updates, with ability to roll back a failed OS update.
  • Experience orchestration updates of thousands of remote devices, e.g. experience on large distributed systems.
  • Experience working with ARM (Raspberry Pi or equivalent) and X86 64 platforms.
  • Experience with containerisation (e.g. Docker or similar).
  • Experience with systemd and writing service files
  • Ideally : experience scaling OpenVPN, MongoDB, Redis, Web Application (Puma / Rails).
  • Ideally : knowledge of OpenEmbedded and ELC materials (Embedded Linux Conference).
  • Apply
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