Docker : Docker Network2020/12/16 |
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This is the basic usage to configure Docker Network.
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| [1] | When running containers without specifying network, default [nat] network is assigned. |
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# display network list PS C:\Users\Administrator> docker network ls NETWORK ID NAME DRIVER SCOPE 835e5265281e administrator_default nat local 84fb0716e654 nat nat local 4a4ab2bf8de9 none null local # display details of [nat] PS C:\Users\Administrator> docker network inspect nat
[
{
"Name": "nat",
"Id": "84fb0716e654da933857ea23cf9b7bb45c615583af0df2586281dc7099786326",
"Created": "2020-12-15T22:03:50.6680838-08:00",
"Scope": "local",
"Driver": "nat",
"EnableIPv6": false,
"IPAM": {
"Driver": "windows",
"Options": null,
"Config": [
{
"Subnet": "172.18.224.0/20",
"Gateway": "172.18.224.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {
"com.docker.network.windowsshim.hnsid": "848A89F5-CFB3-4D77-818A-3DC49C4C6DFB",
"com.docker.network.windowsshim.networkname": "nat"
},
"Labels": {}
}
]
# [nat] is assigned as container network by default PS C:\Users\Administrator> docker run mcr.microsoft.com/windows/servercore:1809 powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet): Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::f017:c45a:9576:257a%21 IPv4 Address. . . . . . . . . . . : 172.18.232.152 Subnet Mask . . . . . . . . . . . : 255.255.240.0 Default Gateway . . . . . . . . . : 172.18.224.1 |
| [2] | If you'd like to assign another network, set like follows. |
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# create network [network01] with [192.168.100.0/24] subnet PS C:\Users\Administrator> docker network create -d "nat" --subnet "192.168.100.0/24" network01 b6ccadd1101d02118f69b1649e33e9b56f88152fd0ed56da647ba5feeb7d18e3 docker network ls NETWORK ID NAME DRIVER SCOPE 835e5265281e administrator_default nat local 84fb0716e654 nat nat local b6ccadd1101d network01 nat local 4a4ab2bf8de9 none null local # run a container with specifying [network01] PS C:\Users\Administrator> docker run --net network01 mcr.microsoft.com/windows/servercore:1809 powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet): Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::6973:b329:3b79:68df%25 IPv4 Address. . . . . . . . . . . : 192.168.100.206 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.100.1 # to attach the network to existing running container, set like follows PS C:\Users\Administrator> docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 43f4fd5c7833 srv.world/iis "cmd" 10 seconds ago Up 8 seconds 0.0.0.0:8081->80/tcp quirky_hermannPS C:\Users\Administrator> docker exec 43f4fd5c7833 powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet): Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::480c:fc3b:6b06:a363%25 IPv4 Address. . . . . . . . . . . : 172.18.228.192 Subnet Mask . . . . . . . . . . . : 255.255.240.0 Default Gateway . . . . . . . . . : 172.18.224.1 # attach network to specify an IP address in the subnet PS C:\Users\Administrator> docker network connect --ip 192.168.100.10 network01 43f4fd5c7833
docker exec 43f4fd5c7833 powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet): Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::480c:fc3b:6b06:a363%25 IPv4 Address. . . . . . . . . . . : 172.18.228.192 Subnet Mask . . . . . . . . . . . : 255.255.240.0 Default Gateway . . . . . . . . . : 172.18.224.1 Ethernet adapter vEthernet (Ethernet) 2: Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::d9ca:8ddc:a838:cdc%29 IPv4 Address. . . . . . . . . . . : 192.168.100.10 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.100.1 # to disconnect the network, set like follows PS C:\Users\Administrator> docker network disconnect network01 43f4fd5c7833 PS C:\Users\Administrator> docker exec 43f4fd5c7833 powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet): Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::480c:fc3b:6b06:a363%25 IPv4 Address. . . . . . . . . . . : 172.18.228.192 Subnet Mask . . . . . . . . . . . : 255.255.240.0 Default Gateway . . . . . . . . . : 172.18.224.1 |
| [3] | To remove docker networks, set like follows. |
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PS C:\Users\Administrator> docker network ls NETWORK ID NAME DRIVER SCOPE 835e5265281e administrator_default nat local 84fb0716e654 nat nat local b6ccadd1101d network01 nat local 4a4ab2bf8de9 none null local # remove [network01] PS C:\Users\Administrator> docker network rm network01 network01 # remove networks which containers don't use at all PS C:\Users\Administrator> docker network prune
WARNING! This will remove all custom networks not used by at least one container.
Are you sure you want to continue? [y/N] y
Deleted Networks:
administrator_default
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| [4] | To connect to Host network, not nat, set like follows. |
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# confirm network adapter name PS C:\Users\Administrator> Get-NetAdapter Name InterfaceDescription ifIndex Status MacAddress LinkSpeed ---- -------------------- ------- ------ ---------- --------- vEthernet (nat) Hyper-V Virtual Ethernet Adapter 9 Up 00-15-5D-9F-81-EC 10 Gbps Ethernet Intel(R) 82574L Gigabit Network Conn... 5 Up 52-54-00-05-80-B8 1 Gbps # create [transparent01] network with [transparent] driver # for [com.docker.network.windowsshim.interface="***"], specify adapter name confirmed above PS C:\Users\Administrator> docker network create -d transparent -o com.docker.network.windowsshim.interface="Ethernet" transparent01
docker network ls NETWORK ID NAME DRIVER SCOPE 84fb0716e654 nat nat local 4a4ab2bf8de9 none null local 83d4393b8873 transparent01 transparent localPS C:\Users\Administrator> docker network inspect transparent01
[
{
"Name": "transparent01",
"Id": "83d4393b8873869ea6965af480b4d45ddc61995615eb96e4b4e83ce6f4c1d0e9",
"Created": "2020-12-15T23:57:06.3332974-08:00",
"Scope": "local",
"Driver": "transparent",
"EnableIPv6": false,
"IPAM": {
"Driver": "windows",
"Options": {},
"Config": [
{
"Subnet": "0.0.0.0/0"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {
"f655e188d62d5c595a83b51b18ff6c57519072d8fa4bd6e384760543bef979f1": {
"Name": "hungry_swirles",
"EndpointID": "42397562c0296c3763cdd704be2a761e4759b408b415a001714e839db327850e",
"MacAddress": "00:15:5d:63:80:eb",
"IPv4Address": "",
"IPv6Address": ""
}
},
"Options": {
"com.docker.network.windowsshim.hnsid": "21B4D02D-4FD6-40B9-A2A6-1E07CC138842",
"com.docker.network.windowsshim.interface": "Ethernet"
},
"Labels": {}
}
]
PS C:\Users\Administrator> docker images REPOSITORY TAG IMAGE ID CREATED SIZE srv.world/iis-server latest d0b43de1e6a4 4 hours ago 5.32GB mcr.microsoft.com/windows/servercore 1809 5c1f582f60a9 12 days ago 5.12GB # run a container with [transparent01] network PS C:\Users\Administrator> docker run -t -d --net transparent01 srv.world/iis-server f655e188d62d5c595a83b51b18ff6c57519072d8fa4bd6e384760543bef979f1PS C:\Users\Administrator> docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f655e188d62d srv.world/iis-server "cmd" 27 seconds ago Up 25 seconds 80/tcp hungry_swirles # display IP address (it is assigned by DHCP server in your local network) PS C:\Users\Administrator> docker exec f655e188d62d powershell -c "ipconfig" Windows IP Configuration Ethernet adapter vEthernet (Ethernet) 2: Connection-specific DNS Suffix . : srv.world Link-local IPv6 Address . . . . . : fe80::fc34:3e2d:f775:f192%21 IPv4 Address. . . . . . . . . . . : 10.0.0.204 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.0.0.1 # verify accesses PS C:\Users\Administrator> curl.exe 10.0.0.204 Dockerfile test example |
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