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jeff

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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
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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() {
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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
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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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