13 Docker容器单机网络架构全攻略：使用自定义桥接的实践与探索 五 使用自定义docker桥接网络 5.1 重新创建新的容器 5.2 重新创建新的容器，并且指定网络 5.3 docker网桥切换

13 Docker容器单机网络架构全攻略：使用自定义桥接的实践与探索

五 使用自定义docker桥接网络

5.1 重新创建新的容器

[superman@docker ~]$ docker run -dit --name superman001 alpine

示例：

[superman@docker ~]
$ docker run 
-dit 
--name superman001 alpine


a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791


[superman@docker ~]
$ 


[superman@docker ~]
$ docker 
ps 
-a


CONTAINER ID   IMAGE     COMMAND     CREATED              STATUS              PORTS     NAMES


a7479884a350   alpine    
"/bin/sh"   About a minute ago   Up About a minute             superman001


[superman@docker ~]
$ 


[superman@docker ~]
$ docker inspect superman001 | 
grep 
-i ipaddress  


            
"SecondaryIPAddresses": null,


            
"IPAddress": 
"172.17.0.2",


                    
"IPAddress": 
"172.17.0.2",


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network 
ls


NETWORK ID     NAME      DRIVER    SCOPE


1aa209e7f1ec   br1       bridge    local


e3124ecf5bf5   bridge    bridge    local


1fe81a14e4c7   host      host      local


008ae2f75ac2   none      null      local


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network inspect e3124ecf5bf5


[


    {


        
"Name": 
"bridge",


        
"Id": 
"e3124ecf5bf509eed6bae70009b6eee88edf8a3708e5ad0a680dee8804ea8817",


        
"Created": 
"2024-06-27T19:45:15.436074478+08:00",


        
"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,


        
"Attachable": 
false,


        
"Ingress": 
false,


        
"ConfigFrom": {


            
"Network": 
""


        },


        
"ConfigOnly": 
false,


        
"Containers": {


            
"a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791": {


                
"Name": 
"superman001",


                
"EndpointID": 
"e22b8b08c943b3524d8b5efae3603ebcb09f8d450ced89c038039cf2e5202ca4",


                
"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": {}


    }


]


[superman@docker ~]
$ 

5.2 重新创建新的容器，并且指定网络

[superman@docker ~]$ docker run -dit --name superman002 --network br1 alpine

示例：

[superman@docker ~]
$ docker run 
-dit 
--name superman002 
--network br1 alpine


20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab


[superman@docker ~]
$ 


[superman@docker ~]
$ docker 
ps 
-a


CONTAINER ID   IMAGE     COMMAND     CREATED         STATUS         PORTS     NAMES


20280f606803   alpine    
"/bin/sh"   
5 seconds ago   Up 
4 seconds             superman002


a7479884a350   alpine    
"/bin/sh"   
7 minutes ago   Up 
7 minutes             superman001


[superman@docker ~]
$ 


[superman@docker ~]
$ docker inspect superman002 | 
grep 
-i ipaddress 


            
"SecondaryIPAddresses": null,


            
"IPAddress": 
"",


                    
"IPAddress": 
"172.16.1.2",


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network 
ls


NETWORK ID     NAME      DRIVER    SCOPE


1aa209e7f1ec   br1       bridge    local


e3124ecf5bf5   bridge    bridge    local


1fe81a14e4c7   host      host      local


008ae2f75ac2   none      null      local


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network inspect 1aa209e7f1ec


[


    {


        
"Name": 
"br1",


        
"Id": 
"1aa209e7f1ecfb2a31aff43199ac845b90030480b854dba1a3aa2a32cfda74a1",


        
"Created": 
"2024-06-24T11:22:13.046754701+08:00",


        
"Scope": 
"local",


        
"Driver": 
"bridge",


        
"EnableIPv6": 
false,


        
"IPAM": {


            
"Driver": 
"default",


            
"Options": {},


            
"Config": [


                {


                    
"Subnet": 
"172.16.1.0/24",


                    
"Gateway": 
"172.16.1.1"


                }


            ]


        },


        
"Internal": 
false,


        
"Attachable": 
false,


        
"Ingress": 
false,


        
"ConfigFrom": {


            
"Network": 
""


        },


        
"ConfigOnly": 
false,


        
"Containers": {


            
"20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab": {


                
"Name": 
"superman002",


                
"EndpointID": 
"43ff4cf56a63c5f73045e195702dc9eeeef5de31501559700951146e3060332e",


                
"MacAddress": 
"02:42:ac:10:01:02",


                
"IPv4Address": 
"172.16.1.2/24",


                
"IPv6Address": 
""


            }


        },


        
"Options": {},


        
"Labels": {}


    }


]


[superman@docker ~]
$ 

在不同的linux-bridge | docker network之间，默认网络隔离。

5.3 docker网桥切换

[root@centos7 docker]
# docker network disconnect bridge superman001


[root@centos7 docker]
# docker network connect br1 superman001

示例：

[superman@docker ~]
$ docker network disconnect bridge superman001


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network connect br1 superman001


[superman@docker ~]
$ 


[superman@docker ~]
$ docker inspect superman001 | 
grep 
-i ipaddress 


            
"SecondaryIPAddresses": null,


            
"IPAddress": 
"",


                    
"IPAddress": 
"172.16.1.3",


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network 
ls


NETWORK ID     NAME      DRIVER    SCOPE


1aa209e7f1ec   br1       bridge    local


e3124ecf5bf5   bridge    bridge    local


1fe81a14e4c7   host      host      local


008ae2f75ac2   none      null      local


[superman@docker ~]
$ 


[superman@docker ~]
$ docker network inspect 1aa209e7f1ec                 


[


    {


        
"Name": 
"br1",


        
"Id": 
"1aa209e7f1ecfb2a31aff43199ac845b90030480b854dba1a3aa2a32cfda74a1",


        
"Created": 
"2024-06-24T11:22:13.046754701+08:00",


        
"Scope": 
"local",


        
"Driver": 
"bridge",


        
"EnableIPv6": 
false,


        
"IPAM": {


            
"Driver": 
"default",


            
"Options": {},


            
"Config": [


                {


                    
"Subnet": 
"172.16.1.0/24",


                    
"Gateway": 
"172.16.1.1"


                }


            ]


        },


        
"Internal": 
false,


        
"Attachable": 
false,


        
"Ingress": 
false,


        
"ConfigFrom": {


            
"Network": 
""


        },


        
"ConfigOnly": 
false,


        
"Containers": {


            
"20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab": {


                
"Name": 
"superman002",


                
"EndpointID": 
"43ff4cf56a63c5f73045e195702dc9eeeef5de31501559700951146e3060332e",


                
"MacAddress": 
"02:42:ac:10:01:02",


                
"IPv4Address": 
"172.16.1.2/24",


                
"IPv6Address": 
""


            },


            
"a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791": {


                
"Name": 
"superman001",


                
"EndpointID": 
"b2eb9591ef0ffa3a5e242f0a3f539c980e2b441e55654381bd8317dd8fca05e1",


                
"MacAddress": 
"02:42:ac:10:01:03",


                
"IPv4Address": 
"172.16.1.3/24",


                
"IPv6Address": 
""


            }


        },


        
"Options": {},


        
"Labels": {}


    }


]


[superman@docker ~]
$ 

基于主机名的访问（单独创建新的network可以⽀持docker容器主机名和IP地址解析）。

原文链接： https://mp.weixin.qq.com/s?__biz=MzkxNzI1OTE3Mw==&mid=2247492212&idx=1&sn=7339a7af7e9a262dfa3b68e16bec7f64&chksm=c141f4bef6367da808ed37aaf350e3e9c7864013e5430aa090ba78df2c49d8e0486faea01055&token=1641304794&lang=zh_CN#rd

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