From 6454a01c2ef466ee31a67b5296c0ddc02bbbe2ca Mon Sep 17 00:00:00 2001
From: foobar <foobar@zinomedia.de>
Date: Wed, 2 Feb 2022 01:13:20 +0100
Subject: [PATCH] init

---
 backup.sh | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 backup.sh

diff --git a/backup.sh b/backup.sh
new file mode 100644
index 0000000..e44844e
--- /dev/null
+++ b/backup.sh
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# check script curently running and exit or continue
+me="$(basename "$0")";
+result=$(ps aux | grep -i "$me" | grep -v "grep" | wc -l)
+echo "running: $result"
+if [ "$result" -gt 3 ]
+   then
+        exit
+fi
+
+# declarations
+DIR_VOLUMES=/mnt/NASbarracuda1TB/keese/seafile-arm/volumes # path to seafile docker volumes dir
+DIR_BACKUP=/mnt/NASbarracuda1TB/backup/keese/seafile # where to store the backup
+
+# mysql credentials to access databases inside seafile-mysql docker
+MYSQL_USER=root
+MYSQL_PASSWORD=mysqlrootpasswd
+
+# specify seafile-mysql docker name and temporary backup location inside the docker
+DOCKER_SEAFILE_MYSQL=seafile-mysql
+
+
+#------------------------------------------------------------
+# warning: only change below if you know what you are doing!
+
+
+# build dependend dir paths
+DIR_BACKUP_DB=${DIR_BACKUP}/db
+TIMESTAMP=$(date +"%Y-%m-%d-%H-%M-%S")
+DOCKER_BACKUP_DIR=/home/backup
+DOCKER_BACKUP_DIR_TIMESTAMP="${DOCKER_BACKUP_DIR}/${TIMESTAMP}"
+DIR_BACKUP_LOGS=${DIR_BACKUP}/logs
+LOGFILE_STATUS="${TIMESTAMP}_rsync_status.log"
+LOGFILE_PATH="${DIR_BACKUP_LOGS}/${LOGFILE_STATUS}"
+
+
+# 1) backup seafile databases
+docker exec -ti ${DOCKER_SEAFILE_MYSQL} sh -c "mkdir -p ${DOCKER_BACKUP_DIR_TIMESTAMP}" # create remporary backup dir inside docker
+IFS=$'\n\r' # set the IFS to a newline character, so that a whole line can be assigned to an array element
+DATABASES=( $(docker exec -ti ${DOCKER_SEAFILE_MYSQL} sh -c "mysql -e 'show databases' -s --skip-column-names -u ${MYSQL_USER} -p${MYSQL_PASSWORD}") ) # parse database names into array
+
+# loop databases and dump tables to sql files inside temporary docker backup folder
+for i in "${DATABASES[@]:1}"
+do
+   : 
+   docker exec -ti  ${DOCKER_SEAFILE_MYSQL} sh -c "mysqldump --single-transaction -h localhost -u ${MYSQL_USER} -p${MYSQL_PASSWORD} --opt ${i} > ${DOCKER_BACKUP_DIR_TIMESTAMP}/${i}.sql"
+done
+
+# 2) copy backup database files to host and cleanup
+docker cp ${DOCKER_SEAFILE_MYSQL}:${DOCKER_BACKUP_DIR_TIMESTAMP} ${DIR_BACKUP_DB}
+docker exec -ti ${DOCKER_SEAFILE_MYSQL} sh -c "rm -r ${DOCKER_BACKUP_DIR}"
+
+# 3) backup seafile docker volumes folder
+rsync -azh --log-file "${LOGFILE_PATH}" ${DIR_VOLUMES} ${DIR_BACKUP}