Redhat - Packages - Exclude certain packages from yum-cron (but not from yum)

How to exclude certain packages being updated when using yum-cron.

Exclude certain packages from yum-cron

Docker and kernel are packages I would like to exclude from yum-cron.

Modify the /etc/yum/yum-cron.conf file adding this to the [base] section:

[base]
...
exclude = kernel* docker*

Use the YUM_PARAMETER to do the same thing:

YUM_PARAMETER=kernel* docker*

This required the affected yum repository to be modified.

For example, to permanently exclude certain packages like Docker from being updated using the yum command/CLI.

Modify /etc/yum.repos.d/redhat.repo:

[rhel-7-server-extras-rpms]
exclude = docker*

NOTE: Before adding an exclude command, verify that the exclude line is added under the right repository.