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docker (centOS 7) 使用笔记5 - weave网络

时间:2017-09-18 19:38:09      阅读:215      评论:0      收藏:0      [点我收藏+]

标签:nbsp   inter   tis   成功   net   exec   指令   cti   nload   

weave官网 https://www.weave.works

 

1. 下载安装

sudo curl -L git.io/weave -o /usr/local/bin/weave
sudo chmod a+x /usr/local/bin/weave

 

2. 部署weave网络

(1) 在第一台机器上运行,如果使用默认的 10.0.*.* 网段则如下

weave launch

本次测试使用自定义的网段,所以启动指令有所不同:

weave launch --ipalloc-range 168.108.0.0/16

 

启动成功后,会有3个weave的容器运行中

# docker ps -a
c9ed14e97dfd        weaveworks/weave:2.0.4                 "/home/weave/weave..."   2 days ago          Up 2 days                                   weave
7db070b5f54e        weaveworks/weaveexec:2.0.4             "/bin/false"             2 days ago          Created                                     weavevolumes-2.0.4
b6d603c8c7a8        weaveworks/weavedb                     "data-only"              2 days ago          Created                                     weavedb

可看到增加了虚拟网卡 weave

# ifconfig
datapath: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        ether a6:66:9d:b6:5f:66  txqueuelen 1000  (Ethernet)
        RX packets 3  bytes 84 (84.0 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

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.0.1  netmask 255.255.240.0  broadcast 0.0.0.0
        ether 02:42:97:9e:30:4b  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

docker_gwbridge: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.16.1  netmask 255.255.240.0  broadcast 0.0.0.0
        ether 02:42:b9:64:2f:b8  txqueuelen 0  (Ethernet)
        RX packets 366610  bytes 29530131 (28.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 366610  bytes 29530131 (28.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.28.148.61  netmask 255.255.252.0  broadcast 10.28.151.255
        ether 00:16:3e:0e:80:7a  txqueuelen 1000  (Ethernet)
        RX packets 127115170  bytes 12384433822 (11.5 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 78033899  bytes 8572122284 (7.9 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 101.37.162.152  netmask 255.255.252.0  broadcast 101.37.163.255
        ether 00:16:3e:0e:86:ce  txqueuelen 1000  (Ethernet)
        RX packets 3995610  bytes 538305947 (513.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4881735  bytes 4715682947 (4.3 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1  (Local Loopback)
        RX packets 366610  bytes 29530131 (28.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 366610  bytes 29530131 (28.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

veth7720327: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 7e:69:f5:02:6d:9e  txqueuelen 0  (Ethernet)
        RX packets 6  bytes 372 (372.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9  bytes 798 (798.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

weave: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        ether c2:a6:97:90:01:0a  txqueuelen 1000  (Ethernet)
        RX packets 3  bytes 84 (84.0 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) 其他的节点加入加入上面已经创建的weave网络

weave launch 10.28.148.61 --ipalloc-range 168.108.0.0/16

 

(3) 创建网络成功的话,在每个节点上都可以用docker命令查看到weave网络

# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
7c19813ffbff        bridge              bridge              local
a7a2188380ba        docker_gwbridge     bridge              local
7f97ac1cfe6e        host                host                local
z08xcdlswkbk        ingress             overlay             swarm
dfa68b3918b3        none                null                local
42f695c8c061        weave               weavemesh           local

 

3. docker启动测试

(1) 启动相当简单,仅需正常的docker命令中指定network为weave就行了

docker run -ti --network weave mytest

 

(2) 在2个节点上启动容器

在容器内部ifconfig可以看到容器使用的是weave的子网段,2个节点分别是168.108.0.1和168.108.192.0

[root@f451f6736785 /]# ifconfig 
ethwe0    Link encap:Ethernet  HWaddr 42:6E:BF:E4:72:A7  
          inet addr:168.108.0.1  Bcast:0.0.0.0  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1376  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:42 (42.0 b)  TX bytes:42 (42.0 b)

eth0      Link encap:Ethernet  HWaddr 02:42:C0:A8:10:06  
          inet addr:192.168.16.6  Bcast:0.0.0.0  Mask:255.255.240.0
          UP BROADCAST RUNNING MULTICAST  MTU: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 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU: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:1 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

[root@7c202270ff9f /]# ifconfig 
ethwe0    Link encap:Ethernet  HWaddr F6:8D:A2:CB:EF:F5  
          inet addr:168.108.192.0  Bcast:0.0.0.0  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1376  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:42 (42.0 b)

eth0      Link encap:Ethernet  HWaddr 02:42:C0:A8:10:03  
          inet addr:192.168.16.3  Bcast:0.0.0.0  Mask:255.255.240.0
          UP BROADCAST RUNNING MULTICAST  MTU: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 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU: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:1 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

在容器里可以互相ping通

[root@f451f6736785 /]# ping 168.108.192.0
PING 168.108.192.0 (168.108.192.0) 56(84) bytes of data.
64 bytes from 168.108.192.0: icmp_seq=1 ttl=64 time=0.935 ms
64 bytes from 168.108.192.0: icmp_seq=2 ttl=64 time=0.334 ms
64 bytes from 168.108.192.0: icmp_seq=3 ttl=64 time=0.257 ms
64 bytes from 168.108.192.0: icmp_seq=4 ttl=64 time=0.386 ms
^C
--- 168.108.192.0 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3845ms
rtt min/avg/max/mdev = 0.257/0.478/0.935/0.267 ms
[root@7c202270ff9f /]# ping 168.108.0.1
PING 168.108.0.1 (168.108.0.1) 56(84) bytes of data.
64 bytes from 168.108.0.1: icmp_seq=1 ttl=64 time=0.428 ms
64 bytes from 168.108.0.1: icmp_seq=2 ttl=64 time=0.274 ms
64 bytes from 168.108.0.1: icmp_seq=3 ttl=64 time=0.344 ms
64 bytes from 168.108.0.1: icmp_seq=4 ttl=64 time=0.341 ms
^C
--- 168.108.0.1 ping statistics ---
9 packets transmitted, 9 received, 0% packet loss, time 8592ms
rtt min/avg/max/mdev = 0.235/0.301/0.428/0.056 ms

(3) 网速测试:

本次测试的环境是阿里云上的ECS,内网带宽为 1Gbits。

先安装iperf3(网速测试工具)

curl "http://downloads.es.net/pub/iperf/iperf-3.0.6.tar.gz" -o iperf-3.0.6.tar.gz
tar xzvf iperf-3.0.6.tar.gz
cd iperf-3.0.6
./configure
make
make install

 

在节点2上启动iperf服务

# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------

 

 在节点1上启动网速测试

# iperf3 -c 168.108.192.0
Connecting to host 168.108.192.0, port 5201
[  4] local 168.108.0.1 port 50208 connected to 168.108.192.0 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   170 MBytes  1.42 Gbits/sec  1443    344 KBytes       
[  4]   1.00-2.00   sec  95.2 MBytes   799 Mbits/sec  3432    835 KBytes       
[  4]   2.00-3.00   sec  95.0 MBytes   797 Mbits/sec  3934    397 KBytes       
[  4]   3.00-4.00   sec  96.2 MBytes   807 Mbits/sec  3306    684 KBytes       
[  4]   4.00-5.00   sec  93.8 MBytes   786 Mbits/sec  4532    818 KBytes       
[  4]   5.00-6.00   sec  95.0 MBytes   797 Mbits/sec  4308    617 KBytes       
[  4]   6.00-7.00   sec  95.0 MBytes   797 Mbits/sec  4610    326 KBytes       
[  4]   7.00-8.00   sec  95.0 MBytes   797 Mbits/sec  2607    887 KBytes       
[  4]   8.00-9.00   sec  93.8 MBytes   786 Mbits/sec  4161    905 KBytes       
[  4]   9.00-10.00  sec  95.0 MBytes   797 Mbits/sec  4314    666 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  1024 MBytes   859 Mbits/sec  36647             sender
[  4]   0.00-10.00  sec  1021 MBytes   856 Mbits/sec                  receiver

iperf Done.

 

测试下来平均网速:发送速度 859 Mbits/sec ,收取速度 856 Mbits/sec。网速还是让人比较满意的。

 

docker (centOS 7) 使用笔记5 - weave网络

标签:nbsp   inter   tis   成功   net   exec   指令   cti   nload   

原文地址:http://www.cnblogs.com/got-my-way/p/7541948.html

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