Customize the docker0 bridge¶
The default docker0 bridge has some default configuration [1].
ubuntu@docker-node1:~$ docker network list
NETWORK ID NAME DRIVER SCOPE
83a58f039549 bridge bridge local
0f93d7177516 host host local
68721ff2f526 none null local
ubuntu@docker-node1:~$
ubuntu@docker-node1:~$
ubuntu@docker-node1:~$ docker network inspect bridge
[
{
"Name": "bridge",
"Id": "83a58f039549470e3374c6631ef721b927e92917af1d21b464dd59551025ac22",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": null,
"Config": [
{
"Subnet": "172.17.0.0/16",
"Gateway": "172.17.0.1"
}
]
},
"Internal": false,
"Containers": {
"13866c4e5bf2c73385883090ccd0b64ca6ff177d61174f4499210b8a17a7def1": {
"Name": "test1",
"EndpointID": "99fea9853df1fb5fbed3f927b3d2b00544188aa7913a8c0f4cb9f9a40639d789",
"MacAddress": "02:42:ac:11:00:02",
"IPv4Address": "172.17.0.2/16",
"IPv6Address": ""
}
},
"Options": {
"com.docker.network.bridge.default_bridge": "true",
"com.docker.network.bridge.enable_icc": "true",
"com.docker.network.bridge.enable_ip_masquerade": "true",
"com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
"com.docker.network.bridge.name": "docker0",
"com.docker.network.driver.mtu": "1500"
},
"Labels": {}
}
]
ubuntu@docker-node1:~$
What we want to do is to change the default IPAM dirver’s configuration, IP address, netmask and IP allocation range.