use static uid/gid in images

This centralizes all user and group creation into a single source. This
will fix any current and furture uid/gid mismatches (such as with
nova-libvirt).

In the process, we also unify users between the distros in a standard
way. The users in the following containers change from thier defaults:

Ubuntu: _chrony user is now chrony
Ubuntu: memcache user is now memcached
All: qemu user is used for ownership and socket permissions

All uid and gid numbers are customizable via kolla-build.conf

Co-Authored-By: Kris Lindgren <klindgren@godaddy.com>
Change-Id: I120f26ab0683dc87d69727c3df8d4707e52a4543
Partially-Implements: blueprint static-uid-gid

1 files changed, 5 insertions, 14 deletions

diff --git a/docker/nova/nova-libvirt/Dockerfile.j2 b/docker/nova/nova-libvirt/Dockerfile.j2
index 7fa39f819..4b2a58944 100644
--- a/docker/nova/nova-libvirt/Dockerfile.j2
+++ b/docker/nova/nova-libvirt/Dockerfile.j2
@@ -1,10 +1,12 @@
-FROM {{ namespace }}/{{ image_prefix }}nova-base:{{ tag }}
+FROM {{ namespace }}/{{ image_prefix }}base:{{ tag }}
 MAINTAINER {{ maintainer }}
 
 {% block nova_libvirt_header %}{% endblock %}
 
 {% import "macros.j2" as macros with context %}
 
+{{ macros.configure_user(name='nova', groups='qemu') }}
+
 {% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
 
     {% set nova_libvirt_packages = [
@@ -30,8 +32,6 @@ MAINTAINER {{ maintainer }}
         'xen-utils-4.6'
     ] %}
 
-    {% set libvirt_group = 'libvirtd' %}
-
 {% elif base_distro == 'debian' %}
 
     {% set nova_libvirt_packages = [
@@ -46,22 +46,13 @@ MAINTAINER {{ maintainer }}
         'usermode'
     ] %}
 
-    {% set libvirt_group = 'libvirt' %}
-
 {% endif %}
 
 {{ macros.install_packages(nova_libvirt_packages | customizable("packages")) }}
 
-{% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
-
-RUN usermod -a -G qemu nova
-
-{% elif base_distro in ['ubuntu', 'debian'] %}
+{% if base_distro in ['ubuntu', 'debian'] %}
 
-RUN mkdir -p /etc/ceph \
-    && rm -f /etc/libvirt/qemu/networks/default.xml \
-        /etc/libvirt/qemu/networks/autostart/default.xml \
-    && usermod -a -G {{ libvirt_group }} nova
+RUN rm -f /etc/libvirt/qemu/networks/default.xml /etc/libvirt/qemu/networks/autostart/default.xml
 
 {% endif %}