cronie: enable multi-user crontab usage and make cron environment complete

fix [BUGID #673]

several cron related test cases in LTP reveals that our current cron recipe
is not complete:

a) a complete cron hierarchy better have:
     /etc/crontab
     /etc/cron.d
     /etc/cron.hourly
     /etc/cron.daily
     /etc/cron.weekly
     /etc/cron.monthly

b) for a normal user to use crontab command:
     add a new group - crontab
     /usr/bin/crontab is setgid to root:crontab
     /var/spool/cron is owned by root:crontab

below are optional, and thus not included in the default setup:
     /etc/cron.deny
     /etc/cron.allow

cronie by default only allows root user to use crontab, if neither cron.deny
nor cron.allow exists. They are controlled by final policy deployed on the
product.

Signed-off-by: Kevin Tian <kevin.tian@intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/meta/recipes-extended/cronie/cronie/crontab b/meta/recipes-extended/cronie/cronie/crontab
new file mode 100644
index 0000000000..cc9169eda9
--- /dev/null
+++ b/meta/recipes-extended/cronie/cronie/crontab
@@ -0,0 +1,10 @@
+# /etc/crontab: system-wide crontab
+# Unlike any other crontab you don't have to run the `crontab'
+# command to install the new version when you edit this file
+# and files in /etc/cron.d. These files also have username fields,
+# that none of the other crontabs do.
+
+SHELL=/bin/sh
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+# m h dom mon dow user  command