Table of Contents
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建立一個自訂名稱的 docker network
建立一個自訂名稱的 docker network，這邊取名為mybridge:
docker network create -d bridge mybridge查看目前network的訊息，是否有我們建立的mybridge
docker network ls
查看mybridge的資訊。
$ docker network inspect mybridge
[
{
"Name": "mybridge",
"Id": "8569e3bba27a4dd6a5f1a8d39c9df7350aa27dc8eb38118ab4b99f9fb4b6e7cf",
"Created": "2022-01-15T14:21:30.014726296Z",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "172.18.0.0/16",
"Gateway": "172.18.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {},
"Labels": {}
}
]創建一個容器
將容器指定network在mybridge
- –network :後方帶入網路名
docker container run -d --rm --name box3 --network mybridge busybox /bin/sh -c "while true; do sleep 3600; done"查看box3的訊息，最下方Networks:
"Networks": {
"mybridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"7ad11d3a4e9c"
],
"NetworkID": "8569e3bba27a4dd6a5f1a8d39c9df7350aa27dc8eb38118ab4b99f9fb4b6e7cf",
"EndpointID": "213898adbc0abf4dc37894e94f10720f44682b59d046a45f9a88ed92172bf306",
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:12:00:02",
"DriverOpts": null
}
}
回來查看mybridge，會發現有一個新的容器(box3)資料
$ docker network inspect mybridge
[
{
"Name": "mybridge",
"Id": "8569e3bba27a4dd6a5f1a8d39c9df7350aa27dc8eb38118ab4b99f9fb4b6e7cf",
"Created": "2022-01-15T14:21:30.014726296Z",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "172.18.0.0/16",
"Gateway": "172.18.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {
"7ad11d3a4e9c0fff207c329a9beae2fc8060b0110a67dc4a32f133c591be4abb": {
"Name": "box3",
"EndpointID": "213898adbc0abf4dc37894e94f10720f44682b59d046a45f9a88ed92172bf306",
"MacAddress": "02:42:ac:12:00:02",
"IPv4Address": "172.18.0.2/16",
"IPv6Address": ""
}
},
"Options": {},
"Labels": {}
}
]讓一個容器連接2個網路
原本的box1與box2是連接預設的docker0(就是bridge)，而box3是連接mybridge
$ docker network ls
NETWORK ID NAME DRIVER SCOPE
b2077f8151cb bridge bridge local
d1465da885e1 host host local
8569e3bba27a mybridge bridge local
91fc3c2b25fb none null local讓box3連接bridge網路，再查看一次box3的網路資訊:
docker network connect bridge box3
docker inspect box3原本box3只有一個mybridge，新增連接後的Networks出現了bridge的資料。
"Networks": {
"bridge": {
"IPAMConfig": {},
"Links": null,
"Aliases": [],
"NetworkID": "b2077f8151cbe85b063e14c0603ad241acc0066d0155b747d09d5a1171598b62",
"EndpointID": "d7ee13480da9ec15d24ced9a42acc24da4344577bf4832b2e927791c4e8d9155",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.6",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:06",
"DriverOpts": {}
},
"mybridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"7ad11d3a4e9c"
],
"NetworkID": "8569e3bba27a4dd6a5f1a8d39c9df7350aa27dc8eb38118ab4b99f9fb4b6e7cf",
"EndpointID": "213898adbc0abf4dc37894e94f10720f44682b59d046a45f9a88ed92172bf306",
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:12:00:02",
"DriverOpts": null
}
}進入到box3來查看ip a的狀態，
eth0屬於mybridge，eth1屬於bridge。
斷開容器與網絡的連接
查看網路相關命令：
docker networkUsage: docker network COMMAND
Manage networks
Commands:
connect Connect a container to a network
create Create a network
disconnect Disconnect a container from a network
inspect Display detailed information on one or more networks
ls List networks
prune Remove all unused networks
rm Remove one or more networks
Run 'docker network COMMAND --help' for more information on a command.斷開box3與bridge網絡的連接，並查詢box3
docker network disconnect bridge box3
docker inspect box3結果如下，Networks只剩下mybridge:
"Networks": {
"mybridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"7ad11d3a4e9c"
],
"NetworkID": "8569e3bba27a4dd6a5f1a8d39c9df7350aa27dc8eb38118ab4b99f9fb4b6e7cf",
"EndpointID": "213898adbc0abf4dc37894e94f10720f44682b59d046a45f9a88ed92172bf306",
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:12:00:02",
"DriverOpts": null
}
}網路圖如下: