dockerfile

@@ -1,21 +1,10 @@
 FROM mysql:8-debian
 RUN apt-get update --allow-unauthenticated --allow-insecure-repositories
-#install supercronic
+RUN apt-get -y install -qq --force-yes cron
-RUN apt-get -y install --force-yes curl
+RUN echo "Log Start" >> /var/log/cron.log
-# Latest releases available at https://github.com/aptible/supercronic/releases
-ENV SUPERCRONIC_URL=https://github.com/aptible/supercronic/releases/download/v0.2.33/supercronic-linux-amd64 \
-    SUPERCRONIC_SHA1SUM=71b0d58cc53f6bd72cf2f293e09e294b79c666d8 \
-    SUPERCRONIC=supercronic-linux-amd64
-
-RUN curl -fsSLO "$SUPERCRONIC_URL" \
- && echo "${SUPERCRONIC_SHA1SUM}  ${SUPERCRONIC}" | sha1sum -c - \
- && chmod +x "$SUPERCRONIC" \
- && mv "$SUPERCRONIC" "/usr/local/bin/${SUPERCRONIC}" \
- && ln -s "/usr/local/bin/${SUPERCRONIC}" /usr/local/bin/supercronic
-
 RUN mkdir /backup
-ADD backup.sh /usr/local/bin/backup.sh
+ADD backup.sh /usr/local/bin/
-ADD mysqlCron /srv/mysqlCron
+ADD mysqlCron /etc/cron.d/mysqlCron
-RUN chmod 0644 /srv/mysqlCron
+RUN chmod 0644 /etc/cron.d/mysqlCron
 RUN chmod 0744 /usr/local/bin/backup.sh
-CMD supercronic /srv/mysqlCron
+CMD cron && tail -f /var/log/cron.log

mysqlCron

@@ -1,2 +1,2 @@
-50 23 * * * /usr/local/bin/backup.sh
+50 23 * * * backup.sh >> /var/log/cron.log 2>&1
 #leave this line here