Add backups for Minecraft instances

This commit is contained in:
Salt 2020-06-08 20:10:58 -05:00
parent 2175fe8ada
commit 7406d30191
3 changed files with 52 additions and 5 deletions

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@ -3,6 +3,8 @@
---
- hosts: game1.9iron.club
roles:
- role: backups
tags: [ backups ]
- role: minecraft
vars:
mcname: "rotary-main"

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@ -95,9 +95,16 @@
dest: "/var/minecraft/{{ mcname }}/eula.txt"
become: yes
become_user: minecraft
- name: Enable service
- name: Set up system
block:
- name: Enable service
systemd:
name: "minecraft@{{ mcname }}"
enabled: yes
state: started
- name: Template out backup module
template:
src: "backup.sh"
dest: "/opt/backups/modules/minecraft-{{ mcname }}.sh"
mode: "0600"
become: yes

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@ -0,0 +1,38 @@
#! /bin/bash
#
# minecraft.sh
# Backup script for Minecraft. Meant to be sourced by our main backup script
# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
#
# Distributed under terms of the MIT license.
#
set -e
export OUTDIR="$BACKUPSDIR/{{ mcname }}"
retention=7 # 7-day retention period
# Sanity checks
if [ -z "$BACKUPSDIR" ]; then
log "BACKUPSDIR was undefined. Run the main backup script instead of this one."
return 1
fi
if ! [ -d "$OUTDIR" ]; then
if ! mkdir "$OUTDIR"; then
log "Unable to find or create output directory: $OUTDIR"
return 2
fi
fi
# Purge oldest backup if we need to
currentbackupcount="$(ls -1 "$OUTDIR" | wc -l)"
if (( currentbackupcount >= retention )); then
lastbackup="$(find "$OUTDIR" -name \*.tar.gz 2>/dev/null | sort | head -n 1)"
if [ -f "$lastbackup" ]; then
log "Removing old backup: $lastbackup"
rm "$lastbackup"
fi
fi
# WE MAKE BACKUP NOW SERGEI
tar czf "$OUTDIR/{{ mcname }}-$(date -Iseconds)-world.tar.gz" "/var/minecraft/{{ mcname }}/world"