Setup backup container for microdraw database

.gitignore

@@ -6,5 +6,6 @@ atlas_controller/venv/
 atlas_controller/work_dir/
 atlas_server/mongodb/
 microdraw/mariadb_data/
+microdraw/mariadb_backup/
 microdraw/data/
 *.swp

docker-compose.yml

@@ -7,6 +7,7 @@ version: '3'
 services:
   atlas-server-uwsgi:
     image: atlas-server-uwsgi
+    restart: always
     build: "./atlas_server/uwsgi"
     volumes:
       - "./atlas_server/src:/src/atlas_server"
@@ -14,6 +15,7 @@ services:
 
   atlas-server-nginx:
     image: atlas-server-nginx
+    restart: always
     build: "./atlas_server/nginx"
     ports:
       - 5000:80
@@ -42,6 +44,7 @@ services:
 
   microdraw-php:
     image: microdraw-php
+    restart: always
     build:
       context: "./microdraw/"
       dockerfile: Dockerfile-php
@@ -58,3 +61,20 @@ services:
     volumes:
       - "./microdraw/mariadb_data:/var/lib/mysql"
       - "./microdraw/mariadb_init:/docker-entrypoint-initdb.d"
+
+  microdraw-mariadb-backup:
+    image: microdraw-db-backup
+    restart: always
+    build:
+      context: "./microdraw"
+      dockerfile: Dockerfile-db-backup
+    environment:
+      # Make sure this matches name of microdraw-mariadb container
+      MYSQL_CONTAINER_NAME: microdraw-mariadb
+      # Make sure this is the sam as in microdraw-mariadb
+      MYSQL_ROOT_PASSWORD: root
+    volumes:
+      - "/etc/localtime:/etc/localtime:ro"
+      # Note: This directory is a synced to /data/BDA-Data/personal/cschiffer/backup/atlasui/microdraw_db.
+      - "./microdraw/mariadb_backup:/opt/mysql/backup"
+    command: crond -f -d 8

microdraw/Dockerfile-db-backup

+FROM alpine:latest
+
+# Install mariadb client
+RUN apk update && \
+    apk upgrade && \
+    apk add --no-cache mariadb-client && \
+    apk add --no-cache python3 \
+    apk add --no-cache rdiff-backup
+
+# Copy backup script to cron folder
+COPY ./db_backup_scripts/daily/* /etc/periodic/daily
+
+# Make scripts executable
+RUN chmod a+x /etc/periodic/daily/*

microdraw/db_backup_scripts/daily/backup.sh

+#!/usr/bin/env sh
+
+# --------------------------------------------------------------------------
+# Backup database
+# Based on
+# https://github.com/ricardolsmendes/docker-samples/blob/master/mysql-mariadb/periodic-backup/scripts/daily/backup-database
+# https://ricardolsmendes.medium.com/mysql-mariadb-with-scheduled-backup-jobs-running-in-docker-1956e9892e78
+# https://www.guguweb.com/2020/01/30/mysql-incremental-backup-with-mysqldump-and-rdiff-backup/
+# --------------------------------------------------------------------------
+
+BACKUP_FOLDER=/opt/mysql/backup
+DUMP_FOLDER=/opt/mysql/dumps
+
+# Find rdiff-backup and mysqldump
+MYSQLDUMP=$(which mysqldump)
+RDIFF=$(which rdiff-backup)
+
+### MySQL Server Login info ###
+MHOST=${MYSQL_CONTAINER_NAME}
+MPASS=${MYSQL_ROOT_PASSWORD}
+MUSER=root
+
+# Create backup folder
+[ ! -d "${BACKUP_FOLDER}" ] && mkdir -p ${BACKUP_FOLDER}
+[ ! -d "${DUMP_FOLDER}" ] && mkdir -p ${DUMP_FOLDER}
+
+# Dump all databases to the dump folder first
+${MYSQLDUMP} -h ${MHOST} -u ${MUSER} -p${MPASS} --all-databases --single-transaction --quick --skip-extended-insert --routines > ${DUMP_FOLDER}/databases.dump
+# rdiff-backup now compares the dump folder to the latest backup folder and stores the differences
+${RDIFF} ${DUMP_FOLDER} ${BACKUP_FOLDER}
+
+# Remove deleted entries after 30 days
+${RDIFF} --force --remove-older 30D ${BACKUP_FOLDER}
+
+# To restore a specific timestamp, use
+# rdiff-backup -r 2D /path/to/backup/dir/dbname.dump /tmp/dbname_restored.dump