python之key 错误 : 'PATH' when running docker-compose up from Fabric

我尝试使用 Fabric 运行 docker-compose，但是当我使用 Fabric 运行 docker-compose up 命令时，出现以下错误:

[52577] Failed to execute script docker-compose 
Traceback (most recent call last): 
  File "docker-compose", line 6, in <module> 
  File "compose/cli/main.py", line 71, in main 
  File "compose/cli/main.py", line 127, in perform_command 
  File "compose/cli/main.py", line 1080, in up 
  File "compose/cli/main.py", line 1076, in up 
  File "compose/project.py", line 475, in up 
  File "compose/service.py", line 352, in ensure_image_exists 
  File "compose/service.py", line 1217, in pull 
  File "compose/progress_stream.py", line 101, in get_digest_from_pull 
  File "compose/service.py", line 1182, in _do_pull 
  File "site-packages/docker/api/image.py", line 381, in pull 
  File "site-packages/docker/auth.py", line 48, in get_config_header 
  File "site-packages/docker/auth.py", line 96, in resolve_authconfig 
  File "site-packages/docker/auth.py", line 127, in _resolve_authconfig_credstore 
  File "site-packages/dockerpycreds/store.py", line 20, in __init__ 
  File "site-packages/dockerpycreds/utils.py", line 12, in find_executable 
  File "distutils/spawn.py", line 176, in find_executable 
  File "os.py", line 669, in __getitem__ 
KeyError: 'PATH' 
Failed to up the env 

当我从终端运行 docker-compose up 时，它工作正常。

@task 
def up(c): 
    if c.run('docker-compose up', warn=True).failed: 
        print ("Failed to up the env") 

请您参考如下方法:

正如我的评论所建议的，似乎 docker-composer up 当它至少需要做一个 build 时，需要 PATH 环境变量要设置。要修复，我只是将 PATH 从当前 session 转发到子进程(在 PHP 中抱歉!):

$compose = new Process( 'docker-compose up -d', '', [ 
    'VOLUME' => getcwd(), 
    'PATH' => getenv( 'PATH' ), 
] );