Morgan - Clean DO droplets
a guest Jul 27th, 2016 89 Never
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- I wanted to share a solution I came up with for getting super clean, auto-configuring droplets running on DigitalOcean with the latest versions of FreeBSD. No extra junk preinstalled!
- As background, DigitalOcean base images come with a bunch of packages to support auto-configuration, no ZFS support, an extra “freebsd” user account, and other “evidences of tampering”. For sysadmins who have always installed FreeBSD from scratch, this feels like being given someone else’s pre-configured server. Plus, we want ZFS, of course.
- It’s possible to have it all on DigitalOcean with a one-time effort.
- Initially, you start with their base “hand me down” server image. From that, you rebuild it by booting an in-memory FreeBSD environment that runs the standard bsdinstall tool. * And from there, you’re in control of the entire setup process as usual. You can even enable ZFS! When you’re done, you have a fresh-from-the-factory, untainted FreeBSD droplet.
- The downside? It has the network settings entered during the install process, so it won’t be auto-configuring from the DigitalOcean metadata API. But this can be fixed with a simple shell script ** that I have put on GitHub -- no extra packages or user accounts needed! After installing it and cleaning up /etc/rc.conf, you can shut down your droplet, make a snapshot of it, and use that image for cloning other droplets.
- This is one of my first contributions to the FreeBSD community. I’m interested in any feedback on making it better.
- Thanks for a great show. I look forward to watching you guys every week.
- San Diego, CA
- P.S. The gift! On BSD Now 151, you lamented about Let’s Encrypt clients. I’m not sure which Bash script client Allan had trouble with, but the one I found has worked wonderfully, and it supports SANs. I’m using it as the basis for a “master server” that manages the generation and renewal of certificates deployed across multiple FreeBSD web servers and even mail servers that aren’t running Apache or Nginx. Sounds a bit like what Allan was trying to accomplish. The script, created by Lukas Schauer, and my solution are on GitHub. ***
- * How to install FreeBSD with ZFS filesystem on Digitalocean
- ** Lightweight, zero-dependency, self-configuration for FreeBSD droplets on DigitalOcean
- *** Let’s Encrypt Master Server
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