Docker 实战 - 局域网络搭建

1、docker network 命令

PS C:\Users\xiaozy> docker network --helpUsage:  docker network COMMANDManage networksCommands:  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 # 显示局域网详细信息  ls   List networks     # 罗列所有局域网  pruneRemove all unused networks  rm   Remove one or more networks

2、创建局域网

创建局域网：

PS C:\Users\xiaozy37528> docker network create myNetworkf26e19d32597aec0a762c2e7081f86de930aa885b90c983a78730af2a6a018e6

罗列所有局域网：

PS C:\Users\xiaozy37528> docker network lsNETWORK ID     NAMEDRIVER    SCOPEcb5ee1a12afa   bridge     bridge    local9b5cbe43e4fb   example_default   bridge    local26e5ebb8f04c   hosthost      localf26e19d32597   myNetwork  bridge    localccc51ee1d166   nonenull      local

查看局域网详细信息：

PS C:\Users\xiaozy37528> docker network inspect myNetwork[    { "Name": "myNetwork", "Id": "f26e19d32597aec0a762c2e7081f86de930aa885b90c983a78730af2a6a018e6", "Created": "2022-01-26T03:11:03.8063259Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": {     "Driver": "default",     "Options": {},     "Config": [  {      "Subnet": "172.19.0.0/16",      "Gateway": "172.19.0.1"  }     ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": {     "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {}    }]

3、容器连接到局域网

将容器连接到局域网有两种方式：

1. 启动容器时加入

   docker run -itd --name myRedis --network myNetwork --network-alias redis -p 6379:6379 redis

2. 启动容器后加入

   docker network connect myNetwork redis

   PS C:\Users\xiaozy37528> docker container lsCONTAINER ID   IMAGE  COMMAND    CREATED      STATUS   PORTS    NAMES85f3be5e8ee0   nginx  "/docker-entrypoint.…"   2 days ago   Up 33 minutes   0.0.0.0:80->80/tcp, :::80->80/tcp    MyNginxc824254e2a94   nacos/nacos-server   "bin/docker-startup.…"   6 days ago   Up 2 hours      0.0.0.0:8848->8848/tcp, :::8848->8848/tcp   nacosPS C:\Users\xiaozy37528> docker network connect myNetwork MyNginxPS C:\Users\xiaozy37528> docker network connect myNetwork nacosPS C:\Users\xiaozy37528> docker network inspect myNetwork[    { "Name": "myNetwork", "Id": "f26e19d32597aec0a762c2e7081f86de930aa885b90c983a78730af2a6a018e6", "Created": "2022-01-26T03:11:03.8063259Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": {     "Driver": "default",     "Options": {},     "Config": [  {      "Subnet": "172.19.0.0/16",      "Gateway": "172.19.0.1"  }     ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": {     "Network": "" }, "ConfigOnly": false, "Containers": {     "85f3be5e8ee00b51ce5cf1cf88e105cdffe2ea312bf8a9a30d0f3343a582c231": {  "Name": "MyNginx",  "EndpointID": "d9a7a59c21221a96b626435ac77facd382de425a51513ef61ca7d8b8aa7c6843",  "MacAddress": "02:42:ac:13:00:02",  "IPv4Address": "172.19.0.2/16",  "IPv6Address": ""     },     "c824254e2a94bd32a5c216a0978e4ef7959cce6331a9ac220d75debd4593666c": {  "Name": "nacos",  "EndpointID": "a2119d6c6742bd886ec19e910c207c20011e532d25f9f8afb0b2f59533fda13d",  "MacAddress": "02:42:ac:13:00:03",  "IPv4Address": "172.19.0.3/16",  "IPv6Address": ""     } }, "Options": {}, "Labels": {}    }]

4、验证

Nacos 容器 ping Nginx 容器：

PS C:\Users\xiaozy37528> docker exec -it nacos /bin/bash[root@c824254e2a94 nacos]# ping 172.19.0.2PING 172.19.0.2 (172.19.0.2) 56(84) bytes of data.64 bytes from 172.19.0.2: icmp_seq=1 ttl=64 time=0.142 ms64 bytes from 172.19.0.2: icmp_seq=2 ttl=64 time=0.038 msclea64 bytes from 172.19.0.2: icmp_seq=3 ttl=64 time=0.050 ms64 bytes from 172.19.0.2: icmp_seq=4 ttl=64 time=0.037 ms64 bytes from 172.19.0.2: icmp_seq=5 ttl=64 time=0.053 ms64 bytes from 172.19.0.2: icmp_seq=6 ttl=64 time=0.037 ms64 bytes from 172.19.0.2: icmp_seq=7 ttl=64 time=0.039 ms64 bytes from 172.19.0.2: icmp_seq=8 ttl=64 time=0.033 ms64 bytes from 172.19.0.2: icmp_seq=9 ttl=64 time=0.040 ms64 bytes from 172.19.0.2: icmp_seq=10 ttl=64 time=0.039 ms64 bytes from 172.19.0.2: icmp_seq=11 ttl=64 time=0.050 ms64 bytes from 172.19.0.2: icmp_seq=12 ttl=64 time=0.041 ms64 bytes from 172.19.0.2: icmp_seq=13 ttl=64 time=0.052 ms64 bytes from 172.19.0.2: icmp_seq=14 ttl=64 time=0.091 ms64 bytes from 172.19.0.2: icmp_seq=15 ttl=64 time=0.049 ms64 bytes from 172.19.0.2: icmp_seq=16 ttl=64 time=0.041 ms64 bytes from 172.19.0.2: icmp_seq=17 ttl=64 time=0.055 ms64 bytes from 172.19.0.2: icmp_seq=18 ttl=64 time=0.037 ms--- 172.19.0.2 ping statistics ---18 packets transmitted, 18 received, 0% packet loss, time 17692msrtt min/avg/max/mdev = 0.033/0.051/0.142/0.026 ms[root@c824254e2a94 nacos]#

Nginx 容器 ping Nacos 容器：

ZDfans