Fix zun images

Zun uses wsgi to start process.
Rework zun-base image to make use of wsgi.
Create zun user with macros to maintain static uids.
Zun compute need root to connect docker

Change-Id: Idd417e1b804148543ee5f403a836fa1f3e6f7fb0
Closes-Bug: #1682142

docker/zun/zun-api/Dockerfile.j2

@@ -15,5 +15,3 @@ RUN chmod 755 /usr/local/bin/kolla_zun_extend_start
 
 {% block zun_api_footer %}{% endblock %}
 {% block footer %}{% endblock %}
-
-USER zun

docker/zun/zun-api/extend_start.sh

@@ -1,5 +1,15 @@
 #!/bin/bash
 
+# NOTE(pbourke): httpd will not clean up after itself in some cases which
+# results in the container not being able to restart. (bug #1489676, 1557036)
+if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
+    # Loading Apache2 ENV variables
+    . /etc/apache2/envvars
+    rm -rf /var/run/apache2/*
+else
+    rm -rf /var/run/httpd/* /run/httpd/* /tmp/httpd*
+fi
+
 # Bootstrap and exit if KOLLA_BOOTSTRAP variable is set. This catches all cases
 # of the KOLLA_BOOTSTRAP variable being set, including empty.
 if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then

docker/zun/zun-base/Dockerfile.j2

@@ -5,6 +5,8 @@ MAINTAINER {{ maintainer }}
 
 {% import "macros.j2" as macros with context %}
 
+{{ macros.configure_user(name='zun') }}
+
 {% if install_type == 'binary' %}
 
 RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
@@ -12,6 +14,33 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
 
 {% elif install_type == 'source' %}
 
+    {% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
+
+        {% set zun_base_packages = [
+            'httpd',
+            'mod_wsgi',
+            'mod_ssl',
+            'python-ldappool'
+        ] %}
+
+{{ macros.install_packages(zun_base_packages | customizable("packages")) }}
+RUN mkdir -p /var/www/cgi-bin/zun \
+    && sed -i -r 's,^(Listen 80),#\1,' /etc/httpd/conf/httpd.conf \
+    && sed -i -r 's,^(Listen 443),#\1,' /etc/httpd/conf.d/ssl.conf
+
+    {% elif base_distro in ['debian', 'ubuntu'] %}
+
+        {% set zun_base_packages = [
+            'apache2',
+            'libapache2-mod-wsgi',
+            'python-ldappool'
+        ] %}
+
+{{ macros.install_packages(zun_base_packages | customizable("packages")) }}
+RUN mkdir -p /var/www/cgi-bin/zun \
+    && echo > /etc/apache2/ports.conf
+    {% endif %}
+
 ADD zun-base-archive /zun-base-source
 
 {% set zun_base_pip_packages = [
@@ -19,18 +48,19 @@ ADD zun-base-archive /zun-base-source
 ] %}
 
 RUN ln -s zun-base-source/* zun \
-    && useradd --user-group --create-home --home-dir /var/lib/zun zun \
     && {{ macros.install_pip(zun_base_pip_packages | customizable("pip_packages")) }} \
-    && mkdir -p /etc/zun \
+    && mkdir -p /etc/zun /var/www/cgi-bin/zun \
-    && cp -r /zun/etc/* /etc/zun/ \
+    && cp -r /zun/etc/zun/* /etc/zun/ \
-    && chown -R zun: /etc/zun
+    && cp /zun/zun/api/app.wsgi /var/www/cgi-bin/zun \
+    && cp -r /zun/etc/nova /etc/zun/ \
+    && chown -R zun: /etc/zun /var/www/cgi-bin/zun
 
 {% endif %}
 
 COPY extend_start.sh /usr/local/bin/kolla_extend_start
 
-RUN usermod -a -G kolla zun \
+RUN touch /usr/local/bin/kolla_zun_extend_start \
-    && touch /usr/local/bin/kolla_zun_extend_start \
+    && chmod 755 /var/www/cgi-bin/zun \
     && chmod 755 /usr/local/bin/kolla_extend_start /usr/local/bin/kolla_zun_extend_start
 
 {% block zun_base_footer %}{% endblock %}

docker/zun/zun-compute/Dockerfile.j2

@@ -12,5 +12,3 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
 
 {% block zun_compute_footer %}{% endblock %}
 {% block footer %}{% endblock %}
-
-USER zun

kolla/common/config.py

@@ -812,6 +812,10 @@ USERS = {
     'opendaylight-user': {
         'uid': 42462,
         'gid': 42462,
+    },
+    'zun-user': {
+        'uid': 42463,
+        'gid': 42463,
     }
 }