db-container-backup-script

db-container-backup/db-container-backup.service

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+[Unit]
+Description=DB Container Backup Script
+Wants=db-container-backup.timer
+
+[Service]
+Type=simple
+ExecStart=sh db-container-backup.sh
+User=xcad
+
+[Install]
+WantedBy=default.target

db-container-backup/db-container-backup.sh

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+#!/bin/bash
+
+# DB Container Backup Script Template
+# ---
+# This backup script can be used to automatically backup databases in docker containers.
+# It currently supports mariadb, mysql and bitwardenrs containers.
+# 
+
+DAYS=2
+BACKUPDIR=/home/xcad/backup
+
+
+# backup all mysql/mariadb containers
+
+CONTAINER=$(docker ps --format '{{.Names}}:{{.Image}}' | grep 'mysql\|mariadb' | cut -d":" -f1)
+
+echo $CONTAINER
+
+if [ ! -d $BACKUPDIR ]; then
+    mkdir -p $BACKUPDIR
+fi
+
+for i in $CONTAINER; do
+    MYSQL_DATABASE=$(docker exec $i env | grep MYSQL_DATABASE |cut -d"=" -f2)
+    MYSQL_PWD=$(docker exec $i env | grep MYSQL_ROOT_PASSWORD |cut -d"=" -f2)
+
+    docker exec -e MYSQL_DATABASE=$MYSQL_DATABASE -e MYSQL_PWD=$MYSQL_PWD \
+        $i /usr/bin/mysqldump -u root $MYSQL_DATABASE \
+        | gzip > $BACKUPDIR/$i-$MYSQL_DATABASE-$(date +"%Y%m%d%H%M").sql.gz
+
+    OLD_BACKUPS=$(ls -1 $BACKUPDIR/$i*.gz |wc -l)
+    if [ $OLD_BACKUPS -gt $DAYS ]; then
+        find $BACKUPDIR -name "$i*.gz" -daystart -mtime +$DAYS -delete
+    fi
+done
+
+
+# bitwarden backup
+
+BITWARDEN_CONTAINERS=$(docker ps --format '{{.Names}}:{{.Image}}' | grep 'bitwardenrs' | cut -d":" -f1)
+
+for i in $BITWARDEN_CONTAINERS; do
+    docker exec  $i /usr/bin/sqlite3 data/db.sqlite3 .dump \
+        | gzip > $BACKUPDIR/$i-$(date +"%Y%m%d%H%M").sql.gz
+
+    OLD_BITWARDEN_BACKUPS=$(ls -1 $BACKUPDIR/$i*.gz |wc -l)
+    if [ $OLD_BITWARDEN_BACKUPS -gt $DAYS ]; then
+        find $BACKUPDIR -name "$i*.gz" -daystart -mtime +$DAYS -delete
+    fi
+done
+
+echo "$TIMESTAMP Backup for Databases completed"

db-container-backup/db-container-backup.timer

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+[Unit]
+Description=DB Container Backup Daily Job
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+Unit=db-container-backup.service
+
+[Install]
+WantedBy=timers.target