• docker-学习笔记4-网络


    docker默认有以下几个虚拟网络

    docker network ls
    NETWORK ID NAME DRIVER SCOPE
    cb791e055eb0 bridge bridge local
    0a482ea44ff9 host host local
    fe968a1db3f8 none null local

    可以看到运行一个容器时,是可以指定网络的,而默认的网络就是bridge

    docker run --help|grep net
    --network network Connect a container to a network

    查看bridge的信息,可看到它的子网信息

    docker inspect bridge
    [
    {
    "Name": "bridge",
    "Id": "cb791e055eb0a9490abfdbefdd9f219306be970ccbb931f043294756cf498fca",
    "Created": "2020-04-10T20:38:58.305563598+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"
    }
    ]
    },

    网络参数

    网络映射

    与另一个容器共享网络

    这时候,名称空间(文件系统)是隔离的,但网络是共享的。A上面监听了80端口,B上面就无法再监听

    host网络

    这样起一个nginx,就是共享宿主机的名称空间,直接使用宿主机的ip和端口

    docker run -d --name web5 --network host nginx:stable

    bridge的子网段,可以自定义,

    daemon.json里添加bip参数,指定桥自身的ip。

    默认的dns是桥地址,也可以改成自定义的

    使用tcp端口,可以在其他主机上连接本机docker服务端

    创建网络

    [root@docker1 ~]# docker network create --help
    
    Usage:  docker network create [OPTIONS] NETWORK
    
    Create a network
    
    Options:
          --attachable           Enable manual container attachment
          --aux-address map      Auxiliary IPv4 or IPv6 addresses used by Network driver (default map[])
          --config-from string   The network from which copying the configuration
          --config-only          Create a configuration only network
      -d, --driver string        Driver to manage the Network (default "bridge")
          --gateway strings      IPv4 or IPv6 Gateway for the master subnet
          --ingress              Create swarm routing-mesh network
          --internal             Restrict external access to the network
          --ip-range strings     Allocate container ip from a sub-range
          --ipam-driver string   IP Address Management Driver (default "default")
          --ipam-opt map         Set IPAM driver specific options (default map[])
          --ipv6                 Enable IPv6 networking
          --label list           Set metadata on a network
      -o, --opt map              Set driver specific options (default map[])
          --scope string         Control the network's scope
          --subnet strings       Subnet in CIDR format that represents a network segment
    

      

    docker network create --subnet "10.0.1.0/24" --gateway "10.0.1.1" bridge1

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  • 原文地址:https://www.cnblogs.com/jabbok/p/12676061.html
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