Configure the Docker network model-none_PHP tutorial

Configure the Docker network model-none. Configure the Docker network model-none. specify-netnone when starting the Container, indicating that no network information is configured in the started Container, the following information is displayed in the Container after startup: configure the Docker network model-none.

Specify-net = none when starting the Container, indicating that no network information is configured in the started Container. The information in the Container is shown as follows: there is no eth0 interface and there is only one lo loopback interface. However, you still have your own independent network namespace.
Root @ 10-10-63-106 ~] # Docker run-I-t -- rm -- net = none centos6.3-base-v2/bin/bash

[Root @ 4685a85d0e11/] # ifconfig

LoLink encap: Local Loopback

Inet addr: 127.0.0.1Mask: 255.0.0.0

Inet6 addr: 1/128 Scope: Host

Up loopback runningmtu: 65536 Metric: 1

RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 txqueuelen: 0

RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)

Docker run-I-t -- rm -- net = nonefrankzfz/centos6.3-base-v1/bin/bash

[Root @ 0861fd7f405a/] # ifconfig

LoLink encap: Local Loopback

Inet addr: 127.0.0.1Mask: 255.0.0.0

Inet6 addr: 1/128 Scope: Host

Up loopback runningmtu: 65536 Metric: 1

RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 txqueuelen: 0

RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)

Get the container process number,

[Root @ 10-10-63-106 ~] # Docker inspect-f' {. State. Pid} '0861fd7f405a

695

[Root @ 10-10-63-106 ~] # Docker inspect-f' {. State. Pid} '4685a85d0e11

638

Create a trail file for the network namespace

[Root @ 10-10-63-106 ~] # Mkdir-p/var/run/netns

[Root @ 10-10-63-106 ~] # Ln-s/proc/695/ns/net/var/run/netns/695

[Root @ 10-10-63-106 ~] # Ln-s/proc/638/ns/net/var/run/netns/638

Create A peer interface, A is specified as the interface name of Container_ID = 0861fd7f405a, B is specified as Container_ID = 4685a85d0e11, and route information is added. their next hop is directed to the peer IP address.

[Root @ 10-10-63-106 ~] # Ip link add A typeveth peer name B

[Root @ 10-10-63-106 ~] # Ip link set A netns695

[Root @ 10-10-63-106 ~] # Ip netns exec 695 ipaddr add 10.1.1.1/32 dev

[Root @ 10-10-63-106 ~] # Ip netns exec 695 iplink set A up

[Root @ 10-10-63-106 ~] # Ip netns exec 695 iproute add 10.1.1.2/32 dev

[Root @ 0861fd7f405a/] # ifconfig

ALink encap: Ethernet HWaddrCA: 39: 26: CD: 24: BD

Inet addr: 10.1.1.1 Bcast: 0.0.0.0Mask: 255.255.255.255

Up broadcast multicastmtu: 1500 Metric: 1

RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 fig: 1000

RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)

LoLink encap: Local Loopback

Inet addr: 127.0.0.1Mask: 255.0.0.0

Inet6 addr: 1/128 Scope: Host

Up loopback runningmtu: 65536 Metric: 1

RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 txqueuelen: 0

RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)

[Root @ 10-10-63-106 ~] # Ip link set B netns638

[Root @ 10-10-63-106 ~] # Ip netns exec 638 ip addr add 10.1.1.2/32 devB

[Root @ 10-10-63-106 ~] # Ip netns exec 638 iplink set B up

[Root @ 10-10-63-106 ~] # Ip netns exec 638 iproute add 10.1.1.1/32 dev B

[Root @ 4685a85d0e11/] # ifconfig

BLink encap: Ethernet HWaddrFE: 38: 13: D9: 2F: 87

Inet addr: 10.1.1.2Bcast: 0.0.0.0Mask: 255.255.255.255

Inet6 addr: fe80: fc38: 13ff: fed9: 2f87/64 Scope: Link

Up broadcast running multicastmtu: 1500 Metric: 1

RX packets: 8 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 8 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 fig: 1000

RX bytes: 648 (648.0 B) TXbytes: 648 (648.0 B)

LoLink encap: Local Loopback

Inet addr: 127.0.0.1Mask: 255.0.0.0

Inet6 addr: 1/128 Scope: Host

Up loopback runningmtu: 65536 Metric: 1

RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0

TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 txqueuelen: 0

RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)

Ping the IP address of the other Container to ensure that the two containers can communicate with each other.

[Root @ 4685a85d0e11/] # ping 10.1.1.1

PING 10.1.1.1 (10.1.1.1) 56 (84) bytes ofdata.

64 bytes from 10.1.1.1: icmp_seq = 1 ttl = 64 time = 0.084 MS

64 bytes from 10.1.1.1: icmp_seq = 2 ttl = 64 time = 0.071 MS

64 bytes from 10.1.1.1: icmp_seq = 3 ttl = 64 time = 0.073 MS

64 bytes from 10.1.1.1: icmp_seq = 4 ttl = 64 time = 0.069 MS

^ C

--- 10.1.1.1 ping statistics ---

4 packets transmitted, 4 bytes ed, 0% packet loss, time 3505 ms

Rtt min/avg/max/mdev = 0.069/0.074/0.084/0.008 MS

References:

Https://docs.docker.com/articles/networking/

When the Container is started, specify-net = none, indicating that no network information is configured in the started INER. The information in the Container displayed after the Container is started is as follows...