commit 085892725d9853bbdfd431695342de578062f2a3
Author: sontv <sontv@beetinnovators.com>
Date:   Thu Jun 15 10:59:44 2023 +0700

    first commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2b6f8d6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,88 @@
+[![Build Status](https://travis-ci.org/fradelg/docker-mysql-cron-backup.svg?branch=master)](https://travis-ci.org/fradelg/docker-mysql-cron-backup)
+
+# mysql-cron-backup
+
+This docker image runs mysqldump to backup your databases periodically using cron task manager. Backups are placed in `/backup` so you can mount your backup docker volume in this path.
+
+## Usage:
+
+```bash
+docker container run -d \
+       --env MYSQL_USER=root \
+       --env MYSQL_PASS=my_password \
+       --link mysql
+       --volume /path/to/my/backup/folder:/backup
+       fradelg/mysql-cron-backup
+```
+
+## Variables
+
+- `MYSQL_HOST`: The host/ip of your mysql database.
+- `MYSQL_PORT`: The port number of your mysql database.
+- `MYSQL_USER`: The username of your mysql database.
+- `MYSQL_PASS`: The password of your mysql database.
+- `MYSQL_DB`: The database name to dump. Default: `--all-databases`.
+- `MYSQLDUMP_OPTS`: Command line arguments to pass to mysqldump. Example: `--single-transaction`.
+- `CRON_TIME`: The interval of cron job to run mysqldump. `0 3 * * sun` by default, which is every Sunday at 03:00. It uses UTC timezone.
+- `MAX_BACKUPS`: The number of backups to keep. When reaching the limit, the old backup will be discarded. No limit by default.
+- `INIT_BACKUP`: If set, create a backup when the container starts.
+- `INIT_RESTORE_LATEST`: If set, restores latest backup.
+- `TIMEOUT`: Wait a given number of seconds for the database to be ready and make the first backup, `10s` by default. After that time, the initial attempt for backup gives up and only the Cron job will try to make a backup.
+- `GZIP_LEVEL`: Specify the level of gzip compression from 1 (quickest, least compressed) to 9 (slowest, most compressed), default is 6.
+
+If you want to make this image the perfect companion of your MySQL container, use [docker-compose](https://docs.docker.com/compose/). You can add more services that will be able to connect to the MySQL image using the name `my_mariadb`, note that you only expose the port `3306` internally to the servers and not to the host:
+
+```yaml
+version: "2"
+services:
+  mariadb:
+    image: mariadb
+    container_name: my_mariadb
+    expose:
+      - 3306
+    volumes:
+      - data:/var/lib/mysql
+      # If there is not scheme, restore the last created backup (if exists)
+      - ${VOLUME_PATH}/backup/latest.${DATABASE_NAME}.sql.gz:/docker-entrypoint-initdb.d/database.sql.gz
+    environment:
+      - MYSQL_ROOT_PASSWORD=${MARIADB_ROOT_PASSWORD}
+      - MYSQL_DATABASE=${DATABASE_NAME}
+    restart: unless-stopped
+
+  mysql-cron-backup:
+    image: fradelg/mysql-cron-backup
+    depends_on:
+      - mariadb
+    volumes:
+      - ${VOLUME_PATH}/backup:/backup
+    environment:
+      - MYSQL_HOST=my_mariadb
+      - MYSQL_USER=root
+      - MYSQL_PASS=${MARIADB_ROOT_PASSWORD}
+      - MAX_BACKUPS=15
+      - INIT_BACKUP=0
+      # Every day at 03:00
+      - CRON_TIME=0 3 * * *
+      # Make it small
+      - GZIP_LEVEL=9
+    restart: unless-stopped
+
+volumes:
+  data:
+```
+
+## Restore from a backup
+
+See the list of backups in your running docker container, just write in your favorite terminal:
+
+```bash
+docker container exec backup ls /backup
+```
+
+To restore a database from a certain backup, simply run:
+
+```bash
+docker exec -it container /restore.sh backup/latest.backend.sql.gz 
+docker exec -it bischool-vnedu_backup /restore_mongo.sh backup_mongo/202011200419/bface
+```
+