git workshop

Introduction In this post, we’ll cover the basics of using the git source control system, which has emerged as the dominant tool in this space (especially since Microsoft paid $7.5B… Read more »

Letsencrypt in 15 minutes

I was looking for a simple  way to use Let’s Encrypt to enable https for a web site and I found a Docker image nmarus/docker-haproxy-certbot which met my needs. Remember, Let’s Encrypt… Read more »

Borg backup

Borg backup (https://github.com/borgbackup) is an open source backup tool which, in addition to the usual backup features like strong client-side encryption and compression, has several important characteristics which make it… Read more »

clustered cron jobs

We’ve been recently running rest APIs on active-active server pairs (docker containers running on pairs of VMs on separate hosts) with postgres-BDR (multi-master bidirectional replication) for fault-tolerant storage and a pair of fault-tolerant HAProxy instances for incoming… Read more »