try to implement the global containerization

docker/backup/Dockerfile

@@ -0,0 +1,14 @@
+FROM alpine:latest
+
+RUN apk add --no-cache mariadb-client bash dcron
+
+RUN mkdir -p /backups
+RUN mkdir -p /etc/periodic/daily
+
+COPY backup_db.sh /etc/periodic/daily/backup_db
+COPY entrypoint.sh /entrypoint.sh
+
+RUN chmod +x /etc/periodic/daily/backup_db
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

docker/backup/backup_db.sh

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+#!/bin/bash
+
+BACKUP_DIR="/backups"
+
+mkdir -p "$BACKUP_DIR"
+
+DAY=$(date +%d)
+FILE="$BACKUP_DIR/$DAY.sql"
+
+mysqldump -h mariadb -u "$DB_USERNAME" -p"$DB_PASSWORD" "$DB_DATABASE" > "$FILE" 2>/dev/null
+
+if [ $? -eq 0 ]; then
+  echo "[$(date)] Backup $DB_DATABASE sauvegardé dans $FILE" >> "$BACKUP_DIR/backup.log"
+else
+  echo "[$(date)] ERREUR lors du backup de $DB_DATABASE" >> "$BACKUP_DIR/backup.log"
+fi

docker/backup/entrypoint.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+crond -f -l 2