[root@localhost ~]# docker run -i -t mysql:latest /bin/bash
root@e2187aa35875:/usr/local/mysql# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
75: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.2/16 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::42:acff:fe11:2/64 scope link
valid_lft forever preferred_lft forever
root@e2187aa35875:/usr/local/mysql# ping 186.100.8.117 PING 186.100.8.117 (186.100.8.117): 48 data bytes 56 bytes from 186.100.8.117: icmp_seq=0 ttl=64 time=0.124 ms
[root@localhost ~]# ethtool -S vethb689485 NIC statistics: peer_ifindex: 75 [root@localhost ~]# brctl show bridge name bridge id STP enabled interfaces docker0 8000.56847afe9799 no vethb689485
[root@localhost ~]# iptables-save |grep 172.17.0.* -A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE -A FORWARD -d 172.17.0.2/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 5000 -j ACCEPT
[root@localhost ~]# docker run -i -t --net="none" mysql:latest /bin/bash
root@061364719a22:/usr/local/mysql# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
root@061364719a22:/usr/local/mysql# ping 186.100.8.117
PING 186.100.8.117 (186.100.8.117): 48 data bytes
ping: sending packet: Network is unreachable
[root@localhost ~]# docker run -i -t mysql:latest /bin/bash
root@02aac28b9234:/usr/local/mysql# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
77: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 02:42:ac:11:00:03 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.3/16 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::42:acff:fe11:3/64 scope link
valid_lft forever preferred_lft forever
[root@localhost ~]# docker run -i -t --net="container:02aac28b9234" mysql:latest /bin/bash
root@02aac28b9234:/usr/local/mysql# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
77: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 02:42:ac:11:00:03 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.3/16 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::42:acff:fe11:3/64 scope link
valid_lft forever preferred_lft forever
#创建veth设备 ip link add name veth00 type veth peer name veth01 #将veth设备一端接入ovs网桥br-int中 ovs-vsctl -- --if-exists del-port veth00 -- add-port br-int veth00 -- set Interface veth00 external-ids:iface-id=iface_id external-ids:iface-status=active external-ids:attached-mac=00:ff:00:aa:bb:cc external-ids:vm-uuid=instance_id #启动ovs的新加端口 ip link set veth00 up #配置容器的网络namespace mkdir -p /var/run/netns ln -sf /proc/container_pid/ns/net /var/run/netns/container_id #将veth另一端加入容器namespace ip link set veth01 netns container_id #配置容器上该网络设备的mac,ip,gateway ip netns exec container_id ip link set veth01 address mac_address ip netns exec container_id ifconfig veth01 ip ip netns exec container_id ip route replace default via gateway dev veth01
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