Đây là cách sử dụng cơ bản để định cấu hình Docker Network.
Khi chạy các vùng chứa mà không chỉ định mạng, mạng [nat] mặc định sẽ được chỉ định.
# 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
Nếu bạn muốn chỉ định một mạng khác, hãy đặt như sau.
# 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
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
# 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_hermann
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
# attach network to specify an IP address in the subnet
PS C:\Users\Administrator> docker network connect --ip 192.168.100.10 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
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
Để xóa mạng docker, hãy đặt như sau.
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
Để kết nối với mạng Máy chủ, không phải nat, hãy đặt như sau.
# 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
PS C:\Users\Administrator> docker network ls
NETWORK ID NAME DRIVER SCOPE
84fb0716e654 nat nat local
4a4ab2bf8de9 none null local
83d4393b8873 transparent01 transparent local
PS 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
f655e188d62d5c595a83b51b18ff6c57519072d8fa4bd6e384760543bef979f1
PS 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
