Fix ubuntu binary deploys

1. Install python3-pymysql in placement-base image.
2. Remove default placement WSGI config.
3. Use python3 for manage.py in horizon

Change-Id: Ibb620af2241e39fe99bc48757f90296c0d77d438
Partial-Bug: #1823989

docker/horizon/extend_start.sh

@@ -4,12 +4,23 @@ set -o errexit
 
 FORCE_GENERATE="${FORCE_GENERATE}"
 
+# TODO(mgoddard): Remove this elif when Ubuntu has distro_python_version == 3.
+if [[ ${KOLLA_INSTALL_TYPE} == "binary" ]] && [[ "${KOLLA_BASE_DISTRO}" =~ ubuntu ]]; then
+    KOLLA_DISTRO_PYTHON_VERSION=3
+fi
+
 if [[ ${KOLLA_INSTALL_TYPE} == "binary" ]]; then
     SITE_PACKAGES="/usr/lib/python${KOLLA_DISTRO_PYTHON_VERSION}/site-packages"
 elif [[ ${KOLLA_INSTALL_TYPE} == "source" ]]; then
     SITE_PACKAGES="/var/lib/kolla/venv/lib/python${KOLLA_DISTRO_PYTHON_VERSION}/site-packages"
 fi
 
+if [[ -f "/var/lib/kolla/venv/bin/python" ]]; then
+    MANAGE_PY="/var/lib/kolla/venv/bin/python /var/lib/kolla/venv/bin/manage.py"
+else
+    MANAGE_PY="/usr/bin/python${KOLLA_DISTRO_PYTHON_VERSION} /usr/bin/manage.py"
+fi
+
 if [[ ${KOLLA_INSTALL_TYPE} == "source" ]] && [[ ! -f ${SITE_PACKAGES}/openstack_dashboard/local/local_settings.py ]]; then
     ln -s /etc/openstack-dashboard/local_settings \
         ${SITE_PACKAGES}/openstack_dashboard/local/local_settings.py
@@ -29,10 +40,6 @@ fi
 # Bootstrap and exit if KOLLA_BOOTSTRAP variable is set. This catches all cases
 # of the KOLLA_BOOTSTRAP variable being set, including empty.
 if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
-    MANAGE_PY="/usr/bin/python /usr/bin/manage.py"
-    if [[ -f "/var/lib/kolla/venv/bin/python" ]]; then
-        MANAGE_PY="/var/lib/kolla/venv/bin/python /var/lib/kolla/venv/bin/manage.py"
-    fi
     $MANAGE_PY migrate --noinput
     exit 0
 fi
@@ -340,13 +347,8 @@ else
 fi
 
 if settings_changed; then
-    if [[ "${KOLLA_INSTALL_TYPE}" == "binary" ]]; then
+    ${MANAGE_PY} collectstatic --noinput --clear
-        /usr/bin/manage.py collectstatic --noinput --clear
+    ${MANAGE_PY} compress --force
-        /usr/bin/manage.py compress --force
-    elif [[ "${KOLLA_INSTALL_TYPE}" == "source" ]]; then
-        /var/lib/kolla/venv/bin/python /var/lib/kolla/venv/bin/manage.py collectstatic --noinput --clear
-        /var/lib/kolla/venv/bin/python /var/lib/kolla/venv/bin/manage.py compress --force
-    fi
 fi
 
 # NOTE(sbezverk) since Horizon is now storing logs in its own location, /var/log/horizon

docker/placement/placement-api/Dockerfile.j2

@@ -32,7 +32,8 @@ RUN sed -i -r 's,^(Listen 80),#\1,' /etc/httpd/conf/httpd.conf \
         ] %}
 
 {{ macros.install_packages(placement_api_packages | customizable("packages")) }}
-RUN truncate -s 0 /etc/apache2/ports.conf
+RUN truncate -s 0 /etc/apache2/ports.conf \
+    && rm -f /etc/apache2/sites-enabled/placement-api.conf
 
     {% endif %}
 {% elif install_type == 'source' %}

docker/placement/placement-base/Dockerfile.j2

@@ -17,9 +17,11 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
 
     {% elif base_package_type == 'deb' %}
 
+        # TODO(mgoddard): Remove python3-pymysql when in openstack-base.
         {% set placement_base_packages = [
             'mariadb-client',
             'placement-common',
+            'python3-pymysql',
         ] %}
     {% endif %}