Comment 4 for bug 1822673

Reviewed: https://review.openstack.org/649299
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=bc9b922ddcdb6625b0e4c8b67851b3843d1d8775
Submitter: Zuul
Branch: master

commit bc9b922ddcdb6625b0e4c8b67851b3843d1d8775
Author: Michele Baldessari <email address hidden>
Date: Tue Apr 2 14:20:37 2019 +0200

    Force C.UTF-8 when dealing with rabbitmq

    When we use rabbitmq 3.7 we might hit the following issue when running rabbitmqctl commands inside containers (as puppet does):

      Error: Failed to apply catalog: Cannot parse invalid user line: warning:
      the VM is running with native name encoding of latin1 which may cause
      Elixir to malfunction as it expects utf8. Please ensure your locale is
      set to UTF-8 (which can be verified by running "locale" in your shell)

    This is fundamentally the tripleo version of
    https://github.com/voxpupuli/puppet-rabbitmq/issues/671

    This is a strict requirement coming from Elixir:
    https://github.com/elixir-lang/elixir/issues/3548

    Since containers do not have UTF-8 as a default we have this problem:
    [root@overcloud-controller-0 ~]# podman exec -it rabbitmq-bundle-podman-0 sh
    ()[root@overcloud-controller-0 /]$ rabbitmqctl -q list_users
    warning: the VM is running with native name encoding of latin1 which may cause Elixir to malfunction as it expects utf8. Please ensure your locale is set to UTF-8 (which can be verified by ru nning "locale" in your shell) user tags
    guest [administrator]
    ()[root@overcloud-controller-0 /]$ locale
    LANG=
    LC_CTYPE="POSIX"
    LC_NUMERIC="POSIX"
    LC_TIME="POSIX"
    LC_COLLATE="POSIX"
    LC_MONETARY="POSIX"
    LC_MESSAGES="POSIX"
    LC_PAPER="POSIX"
    LC_NAME="POSIX"
    LC_ADDRESS="POSIX"
    LC_TELEPHONE="POSIX"
    LC_MEASUREMENT="POSIX"
    LC_IDENTIFICATION="POSIX"
    LC_ALL=

    This is the THT version of forcing UTF-8 on all rabbitmq_init_bundles
    and on epmd itself. The puppet-tripleo one is the depends-on:
    Depends-on: I21ef2e7862f3e5e21812d342b1681f8d5f7f005d

    Tested on the original environment from Emilien where we saw this issue
    during scale-up. After appling this review and its dependency we
    correctly got a scaleup with rabbitm3.7 working

    Closes-Bug: #1822673
    Co-Authored-By: Damien Ciabrini <email address hidden>
    Change-Id: Ifc1377811de68bf14ea4aea4dfb52e22a8864d46