Add backup script for mongodb

faf-extra.yml

@@ -33,6 +33,8 @@ services:
     env_file: ./config/extra/mongodb/mongodb.env
     volumes:
       - ./data/mongodb/data/db:/data/db
+      # Mongodump is corrupting the backup file when piping out via stdout
+      - ./data/mongodb/backup:/backup
 
   #
   # Forum software

scripts/backup-faf-db.sh

@@ -16,7 +16,7 @@ mv $DB_BACKUP/04 $DB_BACKUP/05
 mv $DB_BACKUP/03 $DB_BACKUP/04
 mv $DB_BACKUP/02 $DB_BACKUP/03
 mv $DB_BACKUP/01 $DB_BACKUP/02
-mkdir $DB_BACKUP/01
+mkdir -p $DB_BACKUP/01
 
 echo "* Creating backup..."
 echo "------------------------"

scripts/backup-mongodb.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# This scripts creates a rotating backup of the last 7 days.
+# Subfolder 01 contains the newewst, subfolder 07 the latest backup.
+
+# modify the following to suit your environment
+source /opt/faf/config/extra/mongodb/mongodb.env
+export DB_BACKUP="/opt/faf/backups/mongodb"
+
+echo "*** MongoDB backup"
+echo "* Rotate existing backups"
+echo "------------------------"
+
+rm -rf $DB_BACKUP/07
+mv $DB_BACKUP/06 $DB_BACKUP/07
+mv $DB_BACKUP/05 $DB_BACKUP/06
+mv $DB_BACKUP/04 $DB_BACKUP/05
+mv $DB_BACKUP/03 $DB_BACKUP/04
+mv $DB_BACKUP/02 $DB_BACKUP/03
+mv $DB_BACKUP/01 $DB_BACKUP/02
+mkdir -p $DB_BACKUP/01
+
+echo "* Creating backup..."
+echo "------------------------"
+docker-compose --compatibility --project-directory /opt/faf -f /opt/faf/faf-extra.yml exec mongodb mongodump -u "$MONGO_NODEBB_USERNAME" -p "$MONGO_NODEBB_PASSWORD" -d "$MONGO_NODEBB_DATABASE" --archive=/backup/archive.gz --gzip
+mv ./data/mongodb/backup/archive.gz "$DB_BACKUP/01/$(date +"%Y-%m-%d-%H-%M-%S").gz"
+echo "Done"
+exit 0