Docker为什么说不能执行“ bash”? [英] Why does Docker say it can't execute 'bash"?
问题描述
我在MacOSX上使用Docker(带有Boot2Docker)。
我可以从Docker Hub运行映像。
但是,当我尝试运行自己的映像之一时:
docker run -P mylocalimage
或
docker run -P mylocalimage bin / a3-回写
或
...
I得到:
docker env:无法执行'bash':没有这样的文件或目录
我想它找不到在容器中执行的bash二进制文件,但是为什么呢?
基本映像为 errordeveloper / oracle-jdk
感谢您的帮助。
Ashley。
[{
Architecture : amd64,
作者: ABC email@email.com,
Checksum: tarsum.dev + sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b 855,
Comment:,
Config:{
AttachStderr:false,
AttachStdin:false,
AttachStdout :false,
Cmd:[],
CpuShares:0,
Cpuset:,
Domainname:,
Entrypoint:[
bin / a3-回写
],
Env:[
PATH = / usr / local / sbin:/ usr /本地/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/jdk1.8.0_25/bin,
JAVA_HOME = / usr / jdk1.8.0_25
],
ExposedPorts:空,
主机名: 5bf0de3d0926,
图片: abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7,
MacAddress: b内存:0,
内存交换:0,
NetworkDisabled:否,
OnBuild:[],
OpenStdin:否,
PortSpecs:null,
StdinOnce:false,
Tty:false,
User: daemon,
Volumes:空,
WorkingDir: / opt / docker
},
Container: 987d2279b6e42195fe8e732c0637798926db6cfaeab93fcc25a3f10dac73f111
ContainerConfig:{
AttachStderr:false,
AttachStdin:false,
AttachStdout:false,
Cmd:[
/ bin / sh,
-c,
#(nop)CMD []
],
CpuShares:0,
Cpuset:,
Domainname:,
Entrypoint:[[
bin / a3-write-back
],
Env:[
PATH = / usr / local / sbin:/ usr / local / bin:/ usr / sbin:/ usr / bin:/ sbin:/ bin:/usr/jdk1.8.0_25 / bin,
JAVA_HOME = / usr / jdk1.8.0_25
],
ExposedPorts:空,
主机名: 5bf0de3d0926,
图片: abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7,
MacAddress :,
内存:0,
MemorySwap:0,
NetworkDisabled:假,
OnBuild:[],
OpenStdin:否,
PortSpecs:空,
StdinOnce:否,
Tty:否,
User: daemon,
卷:空,
WorkingDir: / opt / docker
},
创建: 2015-01-13T05:25:38.467586784Z,
DockerVersion: 1.4.1,
标识: ddbd5d3f52cc5fd41605c95e4525cd2f3e0808a3741b3f8d77f46f0661945f7b,
OS: LINUX,
父: abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7,
Size:0,
VirtualSize:390826666
}
]
您的图片基于不带有bash外壳的busybox。它确实有一个位于 / bin / sh
的外壳。
所以这不起作用:
$ docker run -it busybox bash
$ p $中找不到可执行文件p>
exec: bash:在$ PATH2015 / 01/15 11中找不到可执行文件: 09:08来自守护程序的错误响应:
无法启动容器a5074af2f81f8cc1eb0076f4ec9ada5f87be1440006f54a9b06ab701fc60176a:exec:
bash:在$ PATH
但是这样做:
$ docker run -it busybox / bin / sh
/#
由于您的入口点脚本可能会进一步导致复杂化,但是您可以始终优先。
I'm using Docker on MacOSX (with Boot2Docker).
I can run images from Docker Hub.
However, when I try to run one of my own images like this:
docker run -P mylocalimage
or
docker run -P mylocalimage bin/a3-write-back
or
...
I get:
docker "env: can't execute 'bash': No such file or directory"
I guess that it can't find a bash binary to execute in the container, but why?
The base image is
errordeveloper/oracle-jdk
Thanks for any help.
Ashley.
[{ "Architecture": "amd64", "Author": "ABC email@email.com", "Checksum": "tarsum.dev+sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "Comment": "", "Config": { "AttachStderr": false, "AttachStdin": false, "AttachStdout": false, "Cmd": [], "CpuShares": 0, "Cpuset": "", "Domainname": "", "Entrypoint": [ "bin/a3-write-back" ], "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/jdk1.8.0_25/bin", "JAVA_HOME=/usr/jdk1.8.0_25" ], "ExposedPorts": null, "Hostname": "5bf0de3d0926", "Image": "abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7", "MacAddress": "", "Memory": 0, "MemorySwap": 0, "NetworkDisabled": false, "OnBuild": [], "OpenStdin": false, "PortSpecs": null, "StdinOnce": false, "Tty": false, "User": "daemon", "Volumes": null, "WorkingDir": "/opt/docker" }, "Container": "987d2279b6e42195fe8e732c0637798926db6cfaeab93fcc25a3f10dac73f111", "ContainerConfig": { "AttachStderr": false, "AttachStdin": false, "AttachStdout": false, "Cmd": [ "/bin/sh", "-c", "#(nop) CMD []" ], "CpuShares": 0, "Cpuset": "", "Domainname": "", "Entrypoint": [ "bin/a3-write-back" ], "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/jdk1.8.0_25/bin", "JAVA_HOME=/usr/jdk1.8.0_25" ], "ExposedPorts": null, "Hostname": "5bf0de3d0926", "Image": "abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7", "MacAddress": "", "Memory": 0, "MemorySwap": 0, "NetworkDisabled": false, "OnBuild": [], "OpenStdin": false, "PortSpecs": null, "StdinOnce": false, "Tty": false, "User": "daemon", "Volumes": null, "WorkingDir": "/opt/docker" }, "Created": "2015-01-13T05:25:38.467586784Z", "DockerVersion": "1.4.1", "Id": "ddbd5d3f52cc5fd41605c95e4525cd2f3e0808a3741b3f8d77f46f0661945f7b", "Os": "linux", "Parent": "abd65ce243a5b015bb49f3e958103a5cc0c5f14938df4e480ded25f3ecf878e7", "Size": 0, "VirtualSize": 390826666 } ]
解决方案Your image is based on busybox, which doesn't have a bash shell. It does have a shell at
/bin/sh
.So this doesn't work:
$ docker run -it busybox bash exec: "bash": executable file not found in $PATH2015/01/15 11:09:08 Error response from daemon: Cannot start container a5074af2f81f8cc1eb0076f4ec9ada5f87be1440006f54a9b06ab701fc60176a: exec: "bash": executable file not found in $PATH
But this does:
$ docker run -it busybox /bin/sh / #
There may be further complications due to your entrypoint script, but you can always override that.
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