灵感来自 this post ，我正在尝试使用 docker-machine在我的 Mac 上停止正在运行的容器。然而，awk在 docker-machine ssh 中的行为似乎有所不同比直接“在”容器中运行时。
当我直接通过 ssh 连接到容器时，一切都按预期工作:
me@myMac:~$ docker-machine ssh default
docker@default:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
028fd7148881 myrepo/mycontainer "apachectl -DFOREGROU" 14 minutes ago Up 14 minutes 0.0.0.0:80->80/tcp gloomy_mayer
docker@default:~$ docker ps | awk 'NR > 1 {print $1}'
028fd7148881
docker@default:~$ docker ps | awk 'NR > 1 {print $1}' | xargs --no-run-if-empty docker kill
028fd7148881
docker@default:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
但是远程运行时，
awk行为不同:
me@myMac:~$ docker-machine ssh default "docker ps"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7927b10b8a28 myrepo/mycontainer "apachectl -DFOREGROU" 11 seconds ago Up 10 seconds 80/tcp happy_wozniak
me@myMac:~$ docker-machine ssh default "docker ps | awk 'NR > 1 {print $1}'"
7927b10b8a28 myrepo/mycontainer "apachectl -DFOREGROU" About a minute ago Up About a minute 80/tcp happy_wozniak
me@myMac:~$ docker-machine ssh default "docker ps | awk 'NR > 1 {print $1}' | xargs --no-run-if-empty docker kill"
7927b10b8a28
Failed to kill container (myrepo/mycontainer): Error response from daemon: Cannot kill container myrepo/mycontainer: No such container: myRepo/myContainer
Failed to kill container (apachectl -DFOREGROU): Error response from daemon: Cannot kill container apachectl -DFOREGROU: No such container: apachectl -DFOREGROU
Failed to kill container (3): Error response from daemon: Cannot kill container 3: No such container: 3
...
为什么
awk在
docker-machine 下表现不同?
请您参考如下方法:
"docker ps | awk 'NR > 1 {print \$1}' | xargs --no-run-if-empty docker kill"
$ ==> \$
docker ps -q
