I have a cron job which dumps my influx database nightly before borg does a backup of it. It does that by running influx backup in the container with the command:

docker exec influx /usr/local/bin/influx backup /backups

Sometimes it works, and sometimes it gives the error OCI runtime exec f...

Mosquitto is an MQTT message broker which has an official docker image. You probably have devices which can publish messages using MQTT (like your electricity smart meter), and want to subscribe to those messages for graphing it using something like telegraf and grafana. The mosquitto_passwd too...