In this lab, We have 3 containers. Now I will following the topology.
1. Creating a Network call NET_192_168_1 and gateway is 192.168.1.1
2. Creating two containers call Busybox 1 and Busybox2. Both Buysbox 1 and 2 are in the same network (NET_192_168_1)
3. Busybox1 use DHCP to get a IP, Busybox2 is static ip 192.168.1.20/24.
4. Creating a Network call NET_192_168_2 and gateway is 192.168.2.1
5. Creating a containers call Busybox 3 and using NET_192.168_2 network.
6. Busybox3 use static IP 192.168.2.30/24.
7. Busybox3 add a new NIC which IP is 192.168.1.30.
8. Busybox1, Busybox2 and Busybox3 can ping each other.
1. Creating a Network call NET_192_168_1 and gateway is 192.168.1.1
1a. Remove old NET_192_168_1
peter@peter-KVM:~$ docker network rm NET_192_168_1 NET_192_168_1 peter@peter-KVM:~$
1b. Create a new bridge network NET_192_168_1
peter@peter-KVM:~$ docker network create --driver bridge --subnet 192.168.1.0/24 --gateway 192.168.1.1 NET_192_168_1
11e6e8ed82ce33d781be26a04dc8c3d1faf78e9a62a31adc57bee154f430b902
peter@peter-KVM:~$
peter@peter-KVM:~$ docker network inspect NET_192_168_1
[
{
"Name": "NET_192_168_1",
"Id": "11e6e8ed82ce33d781be26a04dc8c3d1faf78e9a62a31adc57bee154f430b902",
"Created": "2019-05-31T15:44:39.396715078+08:00",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "192.168.1.0/24",
"Gateway": "192.168.1.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {},
"Labels": {}
}
]
peter@peter-KVM:~$
2. Creating two containers call Busybox 1 and Busybox2. Both Buysbox 1 and 2 are in the same network (NET_192_168_1)
2a. Remove all non-use container
peter@peter-KVM:~$ docker rm -v $(docker ps -aq -f status=exited) peter@peter-KVM:~$ peter@peter-KVM:~$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES peter@peter-KVM:~$2b. Creating a container called Busybox1 with bridge NET_192_168_1
peter@peter-KVM:~$ docker run -itd --name Busybox1 --network NET_192_168_1 busybox sleep 3000 715d7783bce92aa31e477dd5d01249ed88faa25039f4bb2d65250990ebb1fa22 peter@peter-KVM:~$ peter@peter-KVM:~$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 715d7783bce9 busybox "sleep 3000" 4 seconds ago Up 2 seconds Busybox1 peter@peter-KVM:~$ peter@peter-KVM:~$ peter@peter-KVM:~$ docker exec -it Busybox1 sh / # / # ip a 1: lo:2c. Creating a container called Busybox2 with bridge NET_192_168_1. Static IP 192.168.1.20/24mtu 65536 qdisc noqueue qlen 1000 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 128: eth0@if129: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:01:02 brd ff:ff:ff:ff:ff:ff inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever / # / # exit peter@peter-KVM:~$ peter@peter-KVM:~$ docker network ls NETWORK ID NAME DRIVER SCOPE 11e6e8ed82ce NET_192_168_1 bridge local 3aa82fb31574 bridge bridge local 9a8a72ebd1bf host host local c87da00cc48c none null local peter@peter-KVM:~$ peter@peter-KVM:~$ brctl show bridge name bridge id STP enabled interfaces br-11e6e8ed82ce 8000.0242a401537a no veth0494abc docker0 8000.024219252d6f no peter@peter-KVM:~$
peter@peter-KVM:~$ docker run -itd --name Busybox2 --network NET_192_168_1 --ip 192.168.1.20 busybox sleep 3000 9483fb170876e9aac3ee63f2d64b4e464d8ae221e7a1fde4670a551c47f1f034 peter@peter-KVM:~$ peter@peter-KVM:~$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 9483fb170876 busybox "sleep 3000" 4 seconds ago Up 3 seconds Busybox2 715d7783bce9 busybox "sleep 3000" 4 minutes ago Up 4 minutes Busybox1 peter@peter-KVM:~$ peter@peter-KVM:~$ docker exec -it Busybox2 sh / # / # ip a 1: lo:3. Busybox1 use DHCP to get a IP, Busybox2 is static ip 192.168.1.20/24.mtu 65536 qdisc noqueue qlen 1000 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 130: eth0@if131: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:01:14 brd ff:ff:ff:ff:ff:ff inet 192.168.1.20/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever / # / # exit peter@peter-KVM:~$ peter@peter-KVM:~$ brctl show bridge name bridge id STP enabled interfaces br-11e6e8ed82ce 8000.0242a401537a no veth0494abc veth72c6f9b docker0 8000.024219252d6f no peter@peter-KVM:~$ peter@peter-KVM:~$
3a. Verify
peter@peter-KVM:~$ docker exec -it Busybox1 sh / # ip a 1: lo:4. Creating a Network call NET_192_168_2 and gateway is 192.168.2.1mtu 65536 qdisc noqueue qlen 1000 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 128: eth0@if129: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:01:02 brd ff:ff:ff:ff:ff:ff inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever / # / # ping -c 3 192.168.1.20 PING 192.168.1.20 (192.168.1.20): 56 data bytes 64 bytes from 192.168.1.20: seq=0 ttl=64 time=0.150 ms 64 bytes from 192.168.1.20: seq=1 ttl=64 time=0.156 ms 64 bytes from 192.168.1.20: seq=2 ttl=64 time=0.124 ms --- 192.168.1.20 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.124/0.143/0.156 ms / # / # exit peter@peter-KVM:~$ peter@peter-KVM:~$ docker exec -it Busybox2 sh / # ip a 1: lo: mtu 65536 qdisc noqueue qlen 1000 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 130: eth0@if131: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:01:14 brd ff:ff:ff:ff:ff:ff inet 192.168.1.20/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever / # / # ping -c 3 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: seq=0 ttl=64 time=0.137 ms 64 bytes from 192.168.1.2: seq=1 ttl=64 time=0.153 ms 64 bytes from 192.168.1.2: seq=2 ttl=64 time=0.438 ms --- 192.168.1.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.137/0.242/0.438 ms / #
peter@peter-KVM:~$ docker network create --driver bridge --subnet 192.168.2.0/24 --gateway 192.168.2.1 NET_192_168_2
4e4d06e66f42acd2ec10016674eb0d3367ac20d5fed40050871d584af57c3785
peter@peter-KVM:~$
peter@peter-KVM:~$ docker network ls
NETWORK ID NAME DRIVER SCOPE
11e6e8ed82ce NET_192_168_1 bridge local
4e4d06e66f42 NET_192_168_2 bridge local
3aa82fb31574 bridge bridge local
9a8a72ebd1bf host host local
c87da00cc48c none null local
peter@peter-KVM:~$
peter@peter-KVM:~$ docker network inspect NET_192_168_2
[
{
"Name": "NET_192_168_2",
"Id": "4e4d06e66f42acd2ec10016674eb0d3367ac20d5fed40050871d584af57c3785",
"Created": "2019-05-31T16:05:21.390356202+08:00",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "192.168.2.0/24",
"Gateway": "192.168.2.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {},
"Labels": {}
}
]
peter@peter-KVM:~$
5. Creating a containers call Busybox 3 and using NET_192.168_2 network.
peter@peter-KVM:~$ docker run -itd --name Busybox3 --network NET_192_168_2 --ip 192.168.2.30 busybox sleep 3000 b81c5588f9c5edfbcd861bad10aa4993ac0bf92f86cbfc11b3e28cfec299cb14 peter@peter-KVM:~$ peter@peter-KVM:~$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES b81c5588f9c5 busybox "sleep 3000" 5 seconds ago Up 3 seconds Busybox3 9483fb170876 busybox "sleep 3000" 11 minutes ago Up 11 minutes Busybox2 715d7783bce9 busybox "sleep 3000" 15 minutes ago Up 15 minutes Busybox1 peter@peter-KVM:~$ peter@peter-KVM:~$ brctl show bridge name bridge id STP enabled interfaces br-11e6e8ed82ce 8000.0242a401537a no veth0494abc veth72c6f9b br-4e4d06e66f42 8000.02420c6f213f no veth8cf5b23 docker0 8000.024219252d6f no peter@peter-KVM:~$6. Busybox3 use static IP 192.168.2.30/24.
6a. Verify
peter@peter-KVM:~$ docker exec -it Busybox3 sh / # / # ip a 1: lo:7. Busybox3 add a new NIC which IP is 192.168.1.30. 7a. I will add bridge NET_192.168_1 in to container Busybox3 and ip address is 192.168.1.30mtu 65536 qdisc noqueue qlen 1000 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 134: eth0@if135: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:02:1e brd ff:ff:ff:ff:ff:ff inet 192.168.2.30/24 brd 192.168.2.255 scope global eth0 valid_lft forever preferred_lft forever / # / # ping -c 3 192.168.1.1 PING 192.168.1.1 (192.168.1.1): 56 data bytes 64 bytes from 192.168.1.1: seq=0 ttl=64 time=0.101 ms 64 bytes from 192.168.1.1: seq=1 ttl=64 time=0.116 ms 64 bytes from 192.168.1.1: seq=2 ttl=64 time=0.111 ms --- 192.168.1.1 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.101/0.109/0.116 ms / #
peter@peter-KVM:~$ docker network connect --ip 192.168.1.30 NET_192_168_1 Busybox3 peter@peter-KVM:~$ peter@peter-KVM:~$ docker exec -it Busybox3 sh / # ip a 1: lo:8. Busybox1, Busybox2 and Busybox3 can ping each other.mtu 65536 qdisc noqueue qlen 1000 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 134: eth0@if135: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:02:1e brd ff:ff:ff:ff:ff:ff inet 192.168.2.30/24 brd 192.168.2.255 scope global eth0 valid_lft forever preferred_lft forever 136: eth1@if137: mtu 1500 qdisc noqueue link/ether 02:42:c0:a8:01:1e brd ff:ff:ff:ff:ff:ff inet 192.168.1.30/24 brd 192.168.1.255 scope global eth1 valid_lft forever preferred_lft forever / # / # exit peter@peter-KVM:~$ peter@peter-KVM:~$ brctl show bridge name bridge id STP enabled interfaces br-11e6e8ed82ce 8000.0242a401537a no veth0494abc veth72c6f9b veth751dff8 br-4e4d06e66f42 8000.02420c6f213f no veth8cf5b23 docker0 8000.024219252d6f no peter@peter-KVM:~$
8a. Busybox1(192.168.1.2) ping Busybox3(192.168.1.30)
peter@peter-KVM:~$ docker exec -it Busybox1 sh / # / # ping -c 3 192.168.1.30 PING 192.168.1.30 (192.168.1.30): 56 data bytes 64 bytes from 192.168.1.30: seq=0 ttl=64 time=0.130 ms 64 bytes from 192.168.1.30: seq=1 ttl=64 time=0.128 ms 64 bytes from 192.168.1.30: seq=2 ttl=64 time=0.131 ms --- 192.168.1.30 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.128/0.129/0.131 ms / # / # exit peter@peter-KVM:~$8b. Busybox3(192.168.1.30) ping NET_192_168_1 gateway(192.168.1.1) and Busybox1(192.168.1.2) and Busybox2 (192.168.1.20)
peter@peter-KVM:~$ docker exec -it Busybox3 sh / # / # ping -c 3 192.168.1.1 PING 192.168.1.1 (192.168.1.1): 56 data bytes 64 bytes from 192.168.1.1: seq=0 ttl=64 time=0.135 ms 64 bytes from 192.168.1.1: seq=1 ttl=64 time=0.124 ms 64 bytes from 192.168.1.1: seq=2 ttl=64 time=0.115 ms --- 192.168.1.1 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.115/0.124/0.135 ms / # / # ping -c 3 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: seq=0 ttl=64 time=0.110 ms 64 bytes from 192.168.1.2: seq=1 ttl=64 time=0.125 ms 64 bytes from 192.168.1.2: seq=2 ttl=64 time=0.135 ms --- 192.168.1.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.110/0.123/0.135 ms / # / # ping -c 3 192.168.1.20 PING 192.168.1.20 (192.168.1.20): 56 data bytes 64 bytes from 192.168.1.20: seq=0 ttl=64 time=0.138 ms 64 bytes from 192.168.1.20: seq=1 ttl=64 time=0.116 ms 64 bytes from 192.168.1.20: seq=2 ttl=64 time=0.117 ms --- 192.168.1.20 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.116/0.123/0.138 ms / # / # exit peter@peter-KVM:~$
最初發表 / 最後更新: 2019.05.31 / 2019.05.31
0 comments:
張貼留言