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

Question

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")

Answer 1

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' ),
] );