ironic: Fix dnsmasq.log permissions

Closes-Bug: #2093881
Change-Id: I3f45178c07a9cd054e572ff80d0e19fb014d69d3

docker/dnsmasq/Dockerfile.j2

@@ -12,5 +12,8 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
 
 {{ macros.kolla_patch_sources() }}
 
+COPY extend_start.sh /usr/local/bin/kolla_extend_start
+RUN chmod 644 /usr/local/bin/kolla_extend_start
+
 {% block dnsmasq_footer %}{% endblock %}
 {% block footer %}{% endblock %}

docker/dnsmasq/extend_start.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+if [[ ! -d "/var/log/kolla/ironic" ]]; then
+    mkdir -p /var/log/kolla/ironic
+fi
+if [[ $(stat -c %a /var/log/kolla/ironic) != "755" ]]; then
+    chmod 755 /var/log/kolla/ironic
+fi
+if [[ ! -r "/var/log/kolla/ironic/dnsmasq.log" ]]; then
+    touch /var/log/kolla/ironic/dnsmasq.log
+    chown ironic:ironic /var/log/kolla/ironic/dnsmasq.log
+fi