From 5e0ed2180cd410bc3eb56300186bdc1f9fda4330 Mon Sep 17 00:00:00 2001
From: xcad2k <28359525+xcad2k@users.noreply.github.com>
Date: Sun, 11 Apr 2021 15:25:50 +0200
Subject: [PATCH] db-container-backup-script

---
 .../db-container-backup.service               | 11 ++++
 db-container-backup/db-container-backup.sh    | 52 +++++++++++++++++++
 db-container-backup/db-container-backup.timer | 10 ++++
 3 files changed, 73 insertions(+)
 create mode 100644 db-container-backup/db-container-backup.service
 create mode 100644 db-container-backup/db-container-backup.sh
 create mode 100644 db-container-backup/db-container-backup.timer

diff --git a/db-container-backup/db-container-backup.service b/db-container-backup/db-container-backup.service
new file mode 100644
index 0000000..03ebb0e
--- /dev/null
+++ b/db-container-backup/db-container-backup.service
@@ -0,0 +1,11 @@
+[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
\ No newline at end of file
diff --git a/db-container-backup/db-container-backup.sh b/db-container-backup/db-container-backup.sh
new file mode 100644
index 0000000..d9a655f
--- /dev/null
+++ b/db-container-backup/db-container-backup.sh
@@ -0,0 +1,52 @@
+#!/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"
\ No newline at end of file
diff --git a/db-container-backup/db-container-backup.timer b/db-container-backup/db-container-backup.timer
new file mode 100644
index 0000000..8f721a3
--- /dev/null
+++ b/db-container-backup/db-container-backup.timer
@@ -0,0 +1,10 @@
+[Unit]
+Description=DB Container Backup Daily Job
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+Unit=db-container-backup.service
+
+[Install]
+WantedBy=timers.target
\ No newline at end of file