Comment 2 for bug 1899060

Reviewed: https://review.opendev.org/756891
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=bc1d02d89681b92f379b3e356d7778aa6044f297
Submitter: Zuul
Branch: master

commit bc1d02d89681b92f379b3e356d7778aa6044f297
Author: Mark Goddard <email address hidden>
Date: Thu Oct 8 17:43:37 2020 +0100

    baremetal: Install iptables for Docker if enabled

    If iptables is not installed, e.g. in the CentOS 8 cloud image, and
    Docker iptables management is enabled, we get the following errors:

    Failed to find iptables: exec: \"iptables\": executable file not found
    in $PATH failed to start daemon: Error initializing network controller:
    error obtaining controller instance: failed to create NAT chain DOCKER:
    Iptables not found

    This change installs the iptables package Docker iptables management is
    enabled.

    Change-Id: I3ba5318debccafb28c3cbce8e4e9813c28b086fc
    Closes-Bug: #1899060