cloudflared docker health check

Cloudflare's cloudflared container doesn't come with a good health check - or so it seems [1]. The functionality is there, though. The tunnel needs to be started with metrics enabled (here: exposed to 127.0.0.1:20241) and the health check needs to call the proper check. cloudflared: image: cloudflare/cloudflared:latest ... command: tunnel --metrics 127.0.0.1:20241 run healthcheck: test: … Continue reading cloudflared docker health check →

A Zabbix active agent2 template for monitoring containers and container logs

The problem Zabbix (up to v7.2) doesn't seem to be able to monitor the Docker engine and containers in active mode, nor can it collected container logs, which is surprising, since it collects a wide range of container-, image- and runtime engine metrics in passive mode. The solution is a custom agent2 (I'll refer to … Continue reading A Zabbix active agent2 template for monitoring containers and container logs →

Running clamav in Docker under Linux

Update 2023.10.20: there is a newer version on Github [3] I'm running ClamAV [1] on an Ubuntu 18.04 server in Docker and wanted to document, for posteriority and my own dementia, the setup process and considerations. Thankfully there is an official (?), well-maintained ClamAV image on Docker hub. ClamAV can run stand-alone or as a … Continue reading Running clamav in Docker under Linux →

My home NAS setup, 2022 edition

This post is an update of the my 2020 home NAS setup. A few things changed since then, the most important the introduction of snapraid for the media and archiving portion of the NAS. The hardware hasn't changed much apart from a (preventive) hard-disk replacement; my admiration and gratitude goes to HP for building a … Continue reading My home NAS setup, 2022 edition →

docker-proxy port in use

Quick one: you're starting a container through docker-compose and it says a port is in use. You "netstat -plutn" it and find out, that port is in use by docker-proxy. Github user rdavaillaud knows what's going on: stop dockerremove all internal docker network: rm /var/lib/docker/network/files/start docker