Add local DNS config to docker engine
[demo.git] / boot / mso_install.sh
index 9717b69..1faeab9 100644 (file)
@@ -71,12 +71,16 @@ curl -L https://github.com/docker/compose/releases/download/1.9.0/docker-compose
 chmod +x /opt/docker/docker-compose
 
 # Set the MTU size of docker containers to the minimum MTU size supported by vNICs. OpenStack deployments may need to know the external DNS IP
+DNS_FLAG=""
+if [ -s /opt/config/dns_ip_addr.txt ]
+then
+       DNS_FLAG=$DNS_FLAG"--dns $(cat /opt/config/dns_ip_addr.txt) "
+fi
 if [ -s /opt/config/external_dns.txt ]
 then
-       echo "DOCKER_OPTS=\"--dns $(cat /opt/config/external_dns.txt) --mtu=$MTU\"" >> /etc/default/docker
-else
-       echo "DOCKER_OPTS=\"--mtu=$MTU\"" >> /etc/default/docker
+       DNS_FLAG=$DNS_FLAG"--dns $(cat /opt/config/external_dns.txt) "
 fi
+echo "DOCKER_OPTS=\"$DNS_FLAG--mtu=$MTU\"" >> /etc/default/docker
 
 cp /lib/systemd/system/docker.service /etc/systemd/system
 sed -i "/ExecStart/s/$/ --mtu=$MTU/g" /etc/systemd/system/docker.service