[英]How to run the docker commands from python?
I want to run a set of docker commands from python.我想从 python 运行一组 docker 命令。 I tried creating a script like below and run the script from python using paramiko ssh_client to connect to the machine where the docker is running:
我尝试创建一个如下所示的脚本并使用 paramiko ssh_client 从 python 运行脚本以连接到运行 docker 的机器:
#!/bin/bash
# Get container ID
container_id="$(docker ps | grep hello | awk '{print $1}')"
docker exec -it $container_id sh -c "cd /var/opt/bin/ && echo $1 &&
echo $PWD && ./test.sh -q $1"
But docker exec ...
never gets executed.但是
docker exec ...
永远不会被执行。
So I tried to run the below python script below, directly in the machine where the docker is running: import subprocess所以我尝试直接在运行docker的机器上运行下面的python脚本:import subprocess
docker_run = "docker exec 7f34a9c1b78f /bin/bash -c \"cd
/var/opt/bin/ && ls -a\"".split()
subprocess.call(docker_run, shell=True)
I get a message: "Usage: docker COMMAND..."我收到一条消息:“用法:docker COMMAND...”
But I get the expected results if I run the command但是如果我运行命令,我会得到预期的结果
docker exec 7f34a9c1b78f /bin/bash -c "cd /var/opt/bin/ && ls -a" directly in the machine
docker exec 7f34a9c1b78f /bin/bash -c "cd /var/opt/bin/ && ls -a" 直接在机器里
How to run multiple docker commands from the python script?如何从 python 脚本运行多个 docker 命令? Thanks!
谢谢!
You have a mistake in your call to subprocess.call
.您在调用
subprocess.call
出错。 subprocess.call
expects a command with a series of parameters. subprocess.call
需要一个带有一系列参数的命令。 You've given it a list of parameter pieces.你已经给了它一个参数片段列表。
This code:这段代码:
docker_run = "docker exec 7f34a9c1b78f /bin/bash -c \"cd
/var/opt/bin/ && ls -a\"".split()
subprocess.call(docker_run, shell=True)
Runs this:运行这个:
subprocess.call([
'docker', 'exec', '7f34a9c1b78f', '/bin/bash', '-c',
'"cd', '/var/opt/bin/', '&&', 'ls', '-a"'
], shell=True)
Instead, I believe you want:相反,我相信你想要:
subprocess.call([
'docker', 'exec', '7f34a9c1b78f', '/bin/bash', '-c',
'"cd /var/opt/bin/ && ls -a"' # Notice how this is only one argument.
], shell=True)
You might need to tweak that second call.您可能需要调整第二个调用。 I suspect you don't need the quotes (
'cd /var/opt/bin/ && ls -a'
might work instead of '"cd /var/opt/bin/ && ls -a"'
), but I haven't tested it.我怀疑你不需要引号(
'cd /var/opt/bin/ && ls -a'
可能代替'"cd /var/opt/bin/ && ls -a"'
),但我没有' t 测试了它。
Following are a few methods worked: Remove double quotes:以下是一些有效的方法: 删除双引号:
subprocess.call([
'docker', 'exec', '7f34a9c1b78f', '/bin/bash', '-c',
'cd /opt/teradata/tdqgm/bin/ && ./support-archive.sh -q 6b171e7a-7071-4975-a3ac-000000000241'
])
If you are not sure of how the command should be split up to pass it as an argument of subprocess method, shlex
module: https://docs.python.org/2.7/library/shlex.html#shlex.split如果您不确定应该如何拆分命令以将其作为子
shlex
方法的参数传递, shlex
模块: https : shlex
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