ip能通 name通不了

Question

docker run -d --name test1 busybox /bin/sh -c "while true; do sleep 3600; done"
docker run -d --name test2 busybox /bin/sh -c "while true; do sleep 3600; done"
sudo docker network create -d bridge my-bridge
docker run -d --name test3 --network my-bridge busybox /bin/sh -c "while true; do sleep 3600; done"
sudo docker network connect my-bridge test2
docker exec -it test3 /bin/sh
ping test2

Answer 1

麦兜搞IT 2020-04-18 22:13:36

您好，您可以看一下我的执行记录，我刚完全按照您的步骤试了一遍，没有问题

Answer 2

麦兜搞IT 2020-04-18 22:12:37

$ docker run -d --name test1 busybox /bin/sh -c "while true; do sleep 3600; done"
fbac51e214709f7f737e8686cece8e05ae7d1b079b8f5ba385ee2425bcb6db92
$
$
$ docker run -d --name test2 busybox /bin/sh -c "while true; do sleep 3600; done"
5fcd1e39f339b71cade5df24696e60d419698f6e614169f48e0203e5d1756e57
$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
5fcd1e39f339        busybox             "/bin/sh -c 'while t…"   2 seconds ago       Up 1 second                             test2
fbac51e21470        busybox             "/bin/sh -c 'while t…"   17 seconds ago      Up 17 seconds                           test1
$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
5fcd1e39f339        busybox             "/bin/sh -c 'while t…"   14 seconds ago      Up 13 seconds                           test2
fbac51e21470        busybox             "/bin/sh -c 'while t…"   29 seconds ago      Up 28 seconds                           test1
$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
d27ac14ccc04        bridge              bridge              local
150841b609a5        host                host                local
14bf23e2f5c4        my-bridge           bridge              local
f4eaa1069314        none                null                local
$ docker run -d --name test3 --network my-bridge busybox /bin/sh -c "while true; do sleep 3600; done"
91ecbbfd9290b4c4007dd24c632a62403ee1c73b0c32b593c787552fd84ac500
$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
91ecbbfd9290        busybox             "/bin/sh -c 'while t…"   2 seconds ago       Up 2 seconds                            test3
5fcd1e39f339        busybox             "/bin/sh -c 'while t…"   31 seconds ago      Up 30 seconds                           test2
fbac51e21470        busybox             "/bin/sh -c 'while t…"   46 seconds ago      Up 46 seconds                           test1
$ docker network connect my-bridge test2
$ docker exec -it test3 sh
/ # ping test2
PING test2 (172.22.0.3): 56 data bytes
64 bytes from 172.22.0.3: seq=0 ttl=64 time=0.178 ms
64 bytes from 172.22.0.3: seq=1 ttl=64 time=0.170 ms
^C
--- test2 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.170/0.174/0.178 ms
/ #

• Mr李1218247 #1

  相同的代码，重启了虚拟机，同样ping不通名称 奇怪

Answer 3

再也不上QQ鸟 2020-04-18 20:19:45

测试了一下你的代码，是可以拼通的。你最好把test1，test2，test3都删掉，再试一下

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ docker run -d --name test1 busybox /bin/sh -c "while true; do sleep 3600; done"

8303402334ceb6d335502fe7733c7f434085054525c1dc91a9838baae990134c

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ docker run -d --name test2 busybox /bin/sh -c "while true; do sleep 3600; done"

875895a272e9ae1230fe5a0b126794d7062d8ff824b5647a4b3ca16e78cff146

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ sudo docker network create -d bridge my-bridge

5efe3507ee495b96160c8b7434fd685f6ce1c7343e1546ca460cbef75c019a6a

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ docker run -d --name test3 --network my-bridge busybox /bin/sh -c "while true; do sleep 3600; done"

3bb6beb90d9be612c476635dba826e5307f8ac63adc22385483d5028e151d93a

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ sudo docker network connect my-bridge test2

[vagrant@docker-node1 etcd-v3.0.12-linux-amd64]$ docker exec -it test3 /bin/sh

/ # ping test2

PING test2 (172.20.0.3): 56 data bytes

64 bytes from 172.20.0.3: seq=0 ttl=64 time=0.162 ms

64 bytes from 172.20.0.3: seq=1 ttl=64 time=0.121 ms

64 bytes from 172.20.0.3: seq=2 ttl=64 time=0.071 ms

64 bytes from 172.20.0.3: seq=3 ttl=64 time=0.200 ms

^C

--- test2 ping statistics ---

4 packets transmitted, 4 packets received, 0% packet loss

round-trip min/avg/max = 0.071/0.138/0.200 ms

/ #       

• 麦兜搞IT #1

  感谢这位同学的回复，我也试了没问题，请删了几个重新试试把