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jeff / AnsibleSpaceCheck.yml

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1	---
2	- name: Check disk usage and fail if any volume is more than 90% full
3	shell: df --output=pcent,target \| grep -v "/var/lib/docker/overlay2" \| awk 'NR>1 {gsub("%","",$1); if ($1 > 90) print $2 " is " $1 "% full"}'
4	register: disk_usage_check
5	changed_when: false
6	failed_when: disk_usage_check.stdout != ""
7	tags: ["check"]
8	ignore_errors: no

jeff / spacecheck.sh

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1	#!/bin/bash
2
3	# Telegram bot token and chat ID
4	BOT_TOKEN=""
5	CHAT_ID=""
6
7	HOSTNAME=$(hostname)
8
9	# Function to send Telegram message
10	send_telegram_message() {

jeff / Murder Filesystem on Drive

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Script all the filesystem signatures off a drive so that ZFS doesn't get all grumpy when reusing old disks.

1	#!/bin/bash
2	zpool labelclear /dev/$1
3	dd if=/dev/zero of=/dev/$1 bs=1M count=100 status=progress
4	dd if=/dev/zero of=/dev/$1 bs=1M seek=$(( $(blockdev --getsize64 /dev/$1) / 1048576 - 100 )) status=progress
5	wipefs --all /dev/$1

jeff / CloudConfig Example

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Sample CloudConfig for my XCP-ng Ubuntu-images.

1	#cloud-config
2
3	hostname: {name}
4
5	# add host to the /etc/hosts
6	manage_etc_hosts: true
7
8	# don't disable the root user
9	disable_root: false

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