Testing Nextcloud

I like DropBox: it’s convenient and works on all my devices (Linux, Windows, Android). Except now it only works on 3 devices. Time to look for alternatives: Nextcloud. Runs on Linux (ARM and Intel), runs in containers or Kubernetes, and has clients for anything I use. First install: on my old and unused Cubietruck: 2

My git Server

For the longest time I use my Synology NAS as my git server. Not only does it “just work”, but it has 2 disks in a RAID1 setup and I do a regular backup of it. The only problem is that it’s a bit noisy: 1 fan and 2 spinning 3.5″ disks make background noise.

Docker Volume Backup

Doing a backup of volumes is simple if you know the command: influxdb is the stopped container. /var/lib/influxdb is where the (only) volume is mounted. ~/backup/ is where I’d like the compressed tar backup file.

Grafana Alerts

So far I did not have to bother about alerts. InfluxDB collects stats (via API or telegraf) and I can watch it via Grafana. Today I wanted alerts. First you have to create notification channels in Grafana: Alerting/Notification Channels. Email Since I use Gmail, this section in grafana.ini works: The only tricky part is the

ELK with HTTPS

The previous blog entry lacked using https so all communication is in plain text, which makes using passwords less than ideal. This blog entry fixes this. The full source code for the docker-compose.yml and haproxy.cfg file is available here. docker-compose.yml What’s this docker-compose file doing? It starts 2 containers: the ELK container and the HAProxy