Comment 2 for bug 1981405

Reviewed: https://review.opendev.org/c/starlingx/stx-puppet/+/849452
Committed: https://opendev.org/starlingx/stx-puppet/commit/638e2292b52256943306d448f654baad15dd4b15
Submitter: "Zuul (22348)"
Branch: master

commit 638e2292b52256943306d448f654baad15dd4b15
Author: Jorge Saffe <email address hidden>
Date: Tue Jul 12 02:33:19 2022 -0400

    Apply NAT on k8s outgoing pkgs for all protocols

    By default the platform firewall for kubernetes traffic
    is configured to apply NAT on outgoing traffic generated
    inside the K8s cluster only for TCP ports.

    The outgoing traffic of other protocolos (e.g. UDP, ICMP)
    are leaving the system without NAT. When the traffic is
    generated on workers nodes the packages leaves the system
    with the internal management IP address.

    Test Plan:
    ----------
    PASS: CENTOS Standard fresh install.
    PASS: Verify that the iptables "Kubernetes post-routing
    rule" is updated to accept all protocols.
    PASS: Verify src IP of outgoing traffic of UDP protocol
    from worker nodes (e.g. sending SNMP traps).

    Closes-Bug: 1981405
    Signed-off-by: Jorge Saffe <email address hidden>
    Change-Id: Id6d9465f318a8360ff5459d16255e8ce49dbdee9