Install packages into octavia-api image to support wsgi

This patch adds packages to the octavia-api container to support running
it under apache instead of under simple server. This resolves an issue
with haproxy as well as support IPv6.

Change-Id: I72e0a44f081747ebaec25fd5049db83ea6f418ff
Related-Bug: #1815811
(cherry picked from commit 2c75a2429b)
(cherry picked from commit 5b281d8482)

docker/octavia/octavia-api/Dockerfile.j2

@@ -8,15 +8,40 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
 {% if install_type == 'binary' %}
     {% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
         {% set octavia_api_packages = [
-            'openstack-octavia-api'
+            'openstack-octavia-api',
+            'httpd',
+            'mod_ssl',
+            'mod_wsgi'
         ] %}
     {% elif base_distro in ['debian', 'ubuntu'] %}
 RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
             && /bin/false
     {% endif %}
 
+
+{% elif install_type == 'source' %}
+    {% if base_package_type == 'rpm' %}
+        {% set octavia_api_packages = [
+            'httpd',
+            'mod_ssl',
+            'mod_wsgi'
+        ] %}
+    {% elif base_package_type == 'deb' %}
+        {% set octavia_api_packages = [
+            'apache2',
+            'libapache2-mod-wsgi'
+        ] %}
+    {% endif %}
+
+{% endif %}
+
 {{ macros.install_packages(octavia_api_packages | customizable("packages")) }}
 
+{% if base_package_type == 'rpm' %}
+RUN 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_package_type == 'deb' %}
+RUN echo > /etc/apache2/ports.conf
 {% endif %}
 
 COPY extend_start.sh /usr/local/bin/kolla_octavia_extend_start

docker/octavia/octavia-api/extend_start.sh

@@ -6,3 +6,17 @@ if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
     octavia-db-manage upgrade head
     exit 0
 fi
+
+# Assume the service runs on top of Apache when user is root
+if [[ "$(whoami)" == 'root' ]]; then
+    # 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
+fi
+~