Customizations for Watcher

This patchset contains customization of Dockerfile of Watcher
containers

Change-Id: I4d3f2af3e1d622b94d20f3d1f48a972afcff81b8
Partially-implements: blueprint third-party-plugin-support
Signed-off-by: Eduardo Gonzalez <dabarren@gmail.com>

docker/watcher/watcher-api/Dockerfile.j2

@@ -11,6 +11,8 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
 COPY extend_start.sh /usr/local/bin/kolla_watcher_extend_start
 RUN chmod 755 /usr/local/bin/kolla_watcher_extend_start
 
+{% block watcher_api_footer %}{% endblock %}
+{% block footer %}{% endblock %}
 {{ include_footer }}
 
 USER watcher

docker/watcher/watcher-applier/Dockerfile.j2

@@ -8,6 +8,8 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
 
 {% endif %}
 
+{% block watcher_applier_footer %}{% endblock %}
+{% block footer %}{% endblock %}
 {{ include_footer }}
 
 USER watcher

docker/watcher/watcher-base/Dockerfile.j2

@@ -25,3 +25,7 @@ COPY extend_start.sh /usr/local/bin/kolla_extend_start
 RUN usermod -a -G kolla watcher \
     && touch /usr/local/bin/kolla_watcher_extend_start \
     && chmod 755 /usr/local/bin/kolla_extend_start /usr/local/bin/kolla_watcher_extend_start
+
+{% block watcher_base_footer %}{% endblock %}
+{% block footer %}{% endblock %}
+{{ include_footer }}

docker/watcher/watcher-engine/Dockerfile.j2

@@ -8,6 +8,8 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
 
 {% endif %}
 
+{% block watcher_engine_footer %}{% endblock %}
+{% block footer %}{% endblock %}
 {{ include_footer }}
 
 USER watcher