Add hourly backups to paper serbers

roles/minecraft-paper/tasks/main.yml

@@ -40,10 +40,14 @@
           template: src=server.properties dest="{{ paper_home }}/{{ paper_name }}/server.properties"
           notify: "restart paper {{ paper_name }}"
         - name: Accept EULA
-          template: src=eula.txt dest="{{ paper_home }}/{{ paper_name }}/eula.txt"
+          template: src=eula.txt dest="{{ paper_home }}/{{ paper_name }}/eula.txt" mode="0644"
         - name: Download Paper
           get_url: url="{{ paper_downloadurl }}" dest="{{ paper_home }}/{{ paper_name }}/server.jar"
           notify: "restart paper {{ paper_name }}"
+        - name: Template out hourly backup job
+          template: src=hourly.sh dest="{{ paper_home }}/{{ paper_name }}/hourly.sh" mode="0775"
+        - name: Set up hourly backup job
+          cron: minute="0" name="{{ paper_name }}-nightly" job="{{ paper_home }}/{{ paper_name }}/hourly.sh"
       become: yes
       become_user: minecraft-paper
     - name: Enable service

roles/minecraft-paper/templates/hourly.sh

@@ -0,0 +1,52 @@
+#! /bin/sh
+#
+# nightly.sh
+# Nightly world backups for Minecraft
+# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
+#
+# Distributed under terms of the MIT license.
+#
+
+set -e
+
+export MCDIR="{{ paper_home }}/{{ paper_name }}"
+export OUTDIR="$MCDIR/backups"
+retention=24 # 1hr intervals
+
+# Helper functions
+log() {
+	[ -z "$1" ] && return 1
+	printf "$(date -Iseconds): $1\n"
+}
+stuff() {
+	[ -z "$1" ] && return 1
+	screen -p 0 -S "{{ paper_name }}" -X eval "stuff \"say $1\\015\""
+}
+
+# Sanity checks
+if ! [ -d "$OUTDIR" ]; then
+	if ! mkdir "$OUTDIR"; then
+		log "Unable to find or create output directory: $OUTDIR"
+		stuff "World backup failed: see log for details"
+		retuirn 2
+	fi
+fi
+
+# Enforce permissions on our output dir
+chown -R minecraft-paper. "$OUTDIR"
+
+# Remove old backups
+find "$OUTDIR" -type f -mtime +1 -iname "backup-*.tar.gz" -delete
+
+# WE MAKE BACKUP NOW SERGEI
+if cd "$OUTDIR"; then
+	log "Initiating world backup"
+	stuff "Initiating world backup"
+	tar czhf "$OUTDIR/backup-$(date -Iseconds).tar.gz" "$MCDIR"/world*
+	log "World backup complete"
+	stuff "World backup complete"
+else
+	log "Could not change directory: $OUTDIR"
+	stuff "World backup failed: see log for details"
+	return 3
+fi