docker sculated time

backup/dockerfile

@@ -1,6 +1,16 @@
 FROM alpine:3.19
-RUN apk add --no-cache postgresql-client curl zip tzdata
+
+RUN apk add --no-cache postgresql-client curl zip tzdata cron
+RUN ln -sf /usr/share/zoneinfo/UTC /etc/localtime
+RUN mkdir -p /var/log/cron
+
+
 WORKDIR /app
 COPY backup.sh .
-RUN chmod +x backup.sh
-CMD ["/app/backup.sh"]
+COPY crontab /etc/crontabs/root
+
+RUN chmod +x backup.sh && \
+    chmod 0644 /etc/crontabs/root && \
+    touch /var/log/cron/cron.log
+
+CMD ["sh", "-c", "crond -l 8 -L /var/log/cron/cron.log -f"]