Comment 6 for bug 1882678

Reviewed: https://review.opendev.org/735214
Committed: https://git.openstack.org/cgit/starlingx/stx-puppet/commit/?id=6f23a813a3f5447a88e2058f12f022f044f82c08
Submitter: Zuul
Branch: master

commit 6f23a813a3f5447a88e2058f12f022f044f82c08
Author: Andy Ning <email address hidden>
Date: Thu Jun 11 09:44:21 2020 -0400

    Run kubeadm command with specific configuration file

    Puppet manifests use the kubeadm command during initializing
    kubernetes nodes. However, it is not passing the --kubeconfig
    parameter to this command, so the command will search for the
    kubeconfig file. Normally it finds this file in
    /etc/kubernetes/admin.conf, but if a user accidentally (or
    intentionally) creates a config file at /root/.kube/config, this
    file can take precedence and cause the kubeadm command to fail.

    This commit updated the command with /etc/kubernetes/admin.conf as
    its configuration file explicitly.

    Change-Id: I2942fa4a275145cc3a1b6c6fdb0f3827a244f1bb
    Closes-Bug: 1882678
    Signed-off-by: Andy Ning <email address hidden>