papamoose

#!/bin/bash

total_rss=0
total_vsz=0
total_size=0

while read -r size rss vsz user command; do
  total_rss=$((total_rss+rss))
  total_vsz=$((total_vsz+vsz))
  total_size=$((total_size+size))

papamoose

#!/bin/bash
# This exists because I couldn't figure out to to make
# any of the relevant system units wait for my zpool to become available
# before importing it.
#
# zpool `tank` is a ThunderBay 6 connected via Thunderbolt 3.
#
# bolt.service -> ? -> zfs-import-cache
#  ? is possibly just time as it takes a bit for the drives to spin up.
#  The nvme pools work fine, for example.

papamoose

#!/bin/bash
set -e

# trap keyboard interrupt (control-c)
trap control_c INT

# Must be run as root
# requires: 
#   - wget
#   - pax

papamoose

#!/bin/bash

ls -d /usr/src/linux-headers-* \
 | sed -e 's/.*linux-headers-//' \
 | grep generic \
 | sort -V \
 | tac \
 | sudo xargs -n1 /usr/lib/dkms/dkms_autoinstaller start

papamoose

#!/bin/bash
# iPXE build depends
apt-get install -y liblzma-dev git build-essential

# clone iPXE
[ ! -d ./ipxe ] && git clone http://git.ipxe.org/ipxe.git
cd ipxe/src
make clean

sed -i  's/#undef\tDOWNLOAD_PROTO_HTTPS/#define\tDOWNLOAD_PROTO_HTTPS/' config/general.h

papamoose

FFmpeg cheat sheet

A list of useful commands for the ffmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

papamoose

#!/bin/bash
umask 022

{% if letsencrypt_eab  %}
server={{ letsencrypt_server }}
kid={{ letsencrypt_eab_kid }}
hmac={{ letsencrypt_eab_hmac }}
acmeurl={{ letsencrypt_acmeurl }}
{% elif letsencrypt_testmode %}
server=acme-staging-v02.api.letsencrypt.org

papamoose

Assumes you run Traefik.

You need to checkout the repository so you can mount the server and client directories into the container.

git clone https://github.com/RobinLinus/snapdrop.git

Then modify docker-compose.yml and create templates/default.conf.template.

papamoose

Summary

This is a script I made to check the health of the ZFS pools on my Ubuntu server and send a notification with a summary to a Discord server channel (see image of example notification below) I have made for my servers. I borrowed and modified some parts for the actual ZFS health check from this Gist. The script checks ZFS pools overall condition, capacity, errors and time since last scrub. If an issue is detected with a pool a role on the Discord channel is pinged.

This script is only tested on Ubuntu Server 20.04.

Instructions

Copy the two bash files to a Linux server with ZFS pools and modify as required based on distro/version. Fill inn the Discord variables in the discord-variables.sh file.

papamoose

#!/bin/bash

# See http://apple.stackexchange.com/questions/107307/how-can-i-install-the-command-line-tools-completely-from-the-command-line

echo "Checking Xcode CLI tools"
# Only run if the tools are not installed yet
# To check that try to print the SDK path
xcode-select -p &> /dev/null
if [ $? -ne 0 ]; then
  echo "Xcode CLI tools not found. Installing them..."