Add backup module to Gitea

roles/backups/templates/backup.sh

@@ -10,6 +10,7 @@
 set -e
 
 export BACKUPSDIR="/backups"
+export OUTDIR="$BACKUPSDIR/out"
 export MODULESDIR="/opt/backups/modules"
 export DATE="$(date -Iseconds)"
 
@@ -22,7 +23,7 @@ log() {
 # Sanity checks
 if ! [ -d "$MODULESDIR" ]; then
 	log "Unable to find modules directory: $MODULESDIR"
-	exit 2
+	exit 1
 fi
 # Source an RC, if we have it
 if [ -r "$MODULESDIR/backuprc" ]; then
@@ -31,7 +32,7 @@ fi
 # More sanity checks
 if ! [ -d "$BACKUPSDIR" ]; then
 	log "Unable to find backups directory: $BACKUPSDIR"
-	exit 1
+	exit 2
 fi
 # Do the do
 log "Beginning backups"
@@ -41,6 +42,11 @@ for file in "$MODULESDIR"/*; do
 	# Execute the module and alert if it fails
 	log "Executing module: $file"
 	(
+		# Define a log function for our module to use
+		log() {
+			[ -z "$1" ] && return 1
+			printf "$(date -Iseconds): $1\n"
+		}
 		source "$file"
 	) || {
 		log "Error executing module: $file"

roles/gitea/tasks/main.yml

@@ -126,4 +126,9 @@
         name: "gitea.service"
         enabled: yes
         state: "started"
+    - name: Template out backup module
+      template:
+        src: "gitea.sh"
+        dest: "/opt/backups/modules"
+        mode: "0600"
   become: yes

roles/gitea/templates/gitea.sh

@@ -0,0 +1,46 @@
+#! /bin/bash
+#
+# gitea.sh
+# Backup script for Gitea. 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="$BACKUPSDIR/gitea"
+retention=7 # 7-day retention period
+
+# Sanity checks
+if [ -z "$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: $OUTDIR"
+		return 2
+	fi
+fi
+# Enforce permissions on our output directory since the git user will need them
+chown root.git "$OUTDIR"
+chmod 770 "$OUTDIR"
+
+# Purge oldest backup if we need to
+currentbackupcount="$(ls -1 "$OUTDIR" | wc -l)"
+if (( currentbackupcount >= retention )); then
+	lastbackup="$(find "$OUTDIR" -name \*.zip 2>/dev/null | sort | head -n 1)"
+	if [ -f "$lastbackup" ]; then
+		log "Removing old backup: $lastbackup"
+	fi
+fi
+# WE MAKE BACKUP NOW SERGEI
+if cd "$OUTDIR"; then
+	log "Initiating gitea dump"
+	su git -c "gitea dump -c /etc/gitea/app.ini"
+else
+	log "Could not change directory: $OUTDIR"
+	return 3
+fi
+