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docker exec でコマンドが失敗しても 0 で終了する件

Last updated at Posted at 2014-11-07
$ docker exec $CID false
$ echo $?
0

この Issue の通り。実装は、難しくはないけど "boring" らしいのでいつ対応されるか。。。

とりあえずぼくはこうしたッス:

$ docker exec $CID /bin/bash -c 'false; echo $? > /tmp/return-code'
# false or some command to fail
$ test $(docker exec $CID /bin/cat /tmp/return-code) -eq "0"
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