Commit

Dockerfile

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+FROM centos:latest
+
+MAINTAINER skagalwala
+
+# install crontabs
+RUN yum -y update
+RUN yum -y install crontabs
+
+# comment out PAM
+RUN sed -i -e '/pam_loginuid.so/s/^/#/' /etc/pam.d/crond
+
+#Add your cron file
+ADD cron /etc/cron.d/cron_test
+RUN chmod 0644 /etc/cron.d/cron_test
+
+#This will add it to the cron table (crontab -e)
+RUN crontab /etc/cron.d/cron_test
+
+CMD crond && tail -f /dev/null

cron

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+SHELL=/bin/bash
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+MAILTO=root
+
+* * * * * echo "hello" >> /hello.txt
+#empty line