How to change the Docker bridge network address

  • Document ID:7025021
  • Creation Date:26-Feb-2021
  • Modified Date:23-Aug-2021
    • Micro Focus Products:
      Advanced Authentication

Environment

Advanced Authentication 
AA 6.3

Situation

The AA 6.3 appliance uses a subnet of 172.17.0.x and 172.18.x.x for the docker network.
In some instances this subnet might already be in use on the network, causing a conflict.   
Is it possible to change the subnet/network used for docker?

Resolution

Change the docker bridge IP to an appropriate address by following the steps below.  

1. Modify /etc/docker/daemon.json, "192.168.0.0\/16" is desired subnetwork in this example
--
sed -i 's/"ipv6"/"default-address-pools":[{"base":"192.168.0.0\/16","size":20}],\n "ipv6"/' /etc/docker/daemon.json

2. Make sure that changes was applied
-- 
cat /etc/docker/daemon.json

3. Stop AAF/Risk services
--
systemctl stop risk-service
systemctl stop aauth

4. Restart docker service
--
systemctl restart docker

5. Startup AAF/Risk services
docker-compose -f /opt/risk/docker-compose.risk.yml down
systemctl start aauth

6. Check network interfaces settings
--
ifconfig