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  • docker (centOS 7) 使用笔记3

    近日在使用VPN时发现和docker的虚拟网址发生了冲突,都是172.17.0.1,故需要修改docker的默认网址。

    1. 当前状态

    # ifconfig 
    docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
            inet 172.17.0.1  netmask 255.255.0.0  broadcast 0.0.0.0
            ether 02:42:18:22:59:cd  txqueuelen 0  (Ethernet)
            RX packets 0  bytes 0 (0.0 B)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 0  bytes 0 (0.0 B)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

    2. 安装bridge网络工具

    yum -y install bridge-utils

    安装后,查看网桥列表

    # brctl show
    bridge name    bridge id        STP enabled    interfaces
    docker0        8000.0242182259cd    no        

    3. 停止、删除网桥docker0

    停止:

    ip link set dev docker0 down

    删除:

    brctl delbr docker0

    删除成功后,查看:

    # brctl show
    bridge name    bridge id        STP enabled    interfaces

    4. 创建新的网桥

    # brctl addbr bridge0
    

    5. 设置网桥IP

    ip addr add 192.168.0.1/24 dev bridge0

    6. 启动网桥

    ip link set dev bridge0 up

    启动成功后,查看:

    # brctl show
    bridge name    bridge id        STP enabled    interfaces
    bridge0        8000.000000000000    no        
    # ifconfig 
    bridge0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
            inet 192.168.0.1  netmask 255.255.255.0  broadcast 0.0.0.0
            ether ca:ed:3e:52:f1:ee  txqueuelen 1000  (Ethernet)
            RX packets 0  bytes 0 (0.0 B)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 0  bytes 0 (0.0 B)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

    7.修改docker启动设置

    /etc/systemd/system/multi-user.target.wants/docker.service

    ExecStart=/usr/bin/dockerd -b bridge0

    添加选项 -b bridge0

    8. 重启docker服务

    systemctl daemon-reload
    systemctl restart docker
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  • 原文地址:https://www.cnblogs.com/got-my-way/p/6856810.html
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