Bootstrap is failing when using a custom audit-policy-file

[João Victor Portal]

Brief Description
-----------------
Ansible bootstrap is failing when it's used a custom audit-policy-file.

Severity
--------
Critical: System/Feature is not usable after the defect.

Steps to Reproduce
------------------
1) Define custom audit-policy-file in bootstrap overrides yaml file:

apiserver_extra_args:
    audit-policy-file: "/etc/kubernetes/my-audit-policy-file.yml"

apiserver_extra_volumes:
    - name: my-audit-policy-file
      mountPath: "/etc/kubernetes/my-audit-policy-file.yml"
      pathType: "File"
      readOnly: true
      content: |
        # Log all requests at the Metadata level.
        apiVersion: audit.k8s.io/v1
        kind: Policy
        rules:
        - level: Metadata

2) Run bootstrap, it will fail.

Expected Behavior
------------------
Bootstrapping execution completed successfully.

Actual Behavior
----------------
Ansible bootstrapping is failing.

Reproducibility
---------------
100% Reproducible.

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

Branch/Pull Time/Commit
-----------------------
N/A.

Last Pass
---------
N/A.

Timestamp/Logs
--------------
N/A.

Test Activity
-------------
Feature Testing

Workaround
----------
N/A.

[Ghada Khalil (gkhalil)]

screening: stx.7.0 / medium - related to new feature: https://storyboard.openstack.org/#!/story/2009835

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/ansible-playbooks/+/840927
Committed: https://opendev.org/starlingx/ansible-playbooks/commit/bb2a6441aa959d560799e684f8a3439b55f35ec3
Submitter: "Zuul (22348)"
Branch: master

commit bb2a6441aa959d560799e684f8a3439b55f35ec3
Author: Joao Victor Portal <email address hidden>
Date: Fri May 6 12:38:54 2022 -0300

    Fix custom audit-policy-file mount

    Custom audit policy files defined in bootstrap YAML overrides are
    being mounted twice. This is corrected in this change.

    Test Plan:

    PASS: Successfully deploy an AIO-SX using an image with this commit
    present, with the bootstrap YAML overrides containing a custom audit
    policy file defined in "apiserver_extra_volumes" list and pointed by
    "audit-policy-file" in "apiserver_extra_args" dict.
    PASS: In the deployed AIO-SX, verify that the Kubernetes audit log is
    enabled and working correctly.

    Closes-Bug: 1972032
    Signed-off-by: Joao Victor Portal <email address hidden>
    Change-Id: Ie5faeb614f24c6caabe307fbffcd82136df0a1a0