First unlock fails in an AIO-DX setup due to timeout in the apply_network_config.sh script

[Lucas Ratusznei Fonseca]

Brief Description
-----------------
First unlock fails in an AIO-DX setup due to timeout in the apply_network_config.sh script.

Severity
--------
Major

Steps to Reproduce
------------------
Install AIO-DX IPv6, first unlock fails

Reproducibility
---------------
100% reproducible

System Configuration
--------------------
AIO-DX IPv6

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/stx-puppet/+/900551

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/stx-puppet/+/900551
Committed: https://opendev.org/starlingx/stx-puppet/commit/6faca0e70cb7e5aa594c2446e74629de899b139a
Submitter: "Zuul (22348)"
Branch: master

commit 6faca0e70cb7e5aa594c2446e74629de899b139a
Author: Lucas Ratusznei Fonseca <email address hidden>
Date: Thu Nov 9 14:50:11 2023 -0300

    Remove ifup output logging to prevent script from freezing

    In some cases, capturing ifup output causes the script to freeze, which
    leads to a puppet fail due to timeout. This commit changes the code so
    that the output is redirected to /dev/null for ifup and ifdown calls.

    Test plan

    PASS First unlock in an AIO-DX IPv6 install

    Closes-Bug: #2043133
    Change-Id: I1fffa784e8067bbb45b74690dca510fa91d6ec8f
    Signed-off-by: Lucas Ratusznei Fonseca <email address hidden>