ifeulner

Longhorn best practices

The following settings are provided as an example how longhorn should be configured in a production cluster, especially if it is deployed on Hetzner Cloud infrastructure.

Hetzner server nodes provide local storage and allow up to five attached volumes (with a size of up to 10TiB each) Local storage is provided by NVMe storage and therefore is much faster than the attached volumes, but limited in size (max 300GiB usable).

It is assumed that the cluster creation is already done, e.g. via terraform scripts provided by the great kube-hetzner project.

Initial configuration

m-radzikowski

#!/usr/bin/env bash

set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT

script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

usage() {
  cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

julienbourdeau

# Delete all logs
TRUNCATE ps_log;


# Delete old connection data (only used for stats)
# change 2016-02-01 00:00:00 according to you needs
DELETE c, cs
  FROM ps_connections c
  LEFT JOIN ps_connections_source cs ON (c.id_connections = cs.id_connections)
    WHERE c.date_add < '2016-02-01 00:00:00';