Comment 5 for bug 1955427

Reviewed: https://review.opendev.org/c/starlingx/clients/+/822360
Committed: https://opendev.org/starlingx/clients/commit/2ca858a604241a596fc9a4ff1a26ee5b788df1ac
Submitter: "Zuul (22348)"
Branch: master

commit 2ca858a604241a596fc9a4ff1a26ee5b788df1ac
Author: Thiago Miranda <email address hidden>
Date: Mon Dec 20 14:33:45 2021 -0500

    Change the entrypoint of the image to always use bash

    To fix the kubectl version in the commit that it depends on, the
    CUSTOMIZATION variable of the file
    stx-platformclients.stable_docker_image had to be used.

    But when we are building a new image with CUSTOMIZATION, the
    build-stx-images.sh script put a CMD ["bash"] in the image, making the
    old way to call commands in stx-platformclients to no longer work.

    This commit solves this issue, by forcing the entrypoint to always
    use bash and making all commands run as with "bash -c <command>"

    Test Plan:
    - Tested this change with new and old stx-platformclients versions.
      It work with the image that has the kubectl fix and the older ones.

    Partial-Bug: #1955427
    Depends-on: https://review.opendev.org/c/starlingx/upstream/+/822356

    Signed-off-by: Thiago Miranda <email address hidden>
    Change-Id: Ieae227daee875bc4b4b42509cbcb78350360d02c