Docker Desktop用完了docker system prune -a --force不会回收的容器磁盘空间

Question

问题描述

我尝试在具有我感兴趣的代码的docker容器中运行pytest和pytest -cov到卷中。在运行应写

的命令时

运行命令失败

 make coverage
docker run -a stdin -a stdout -a stderr --rm --mount source=example,target=/home/pytest example_pytest py.test
 --cov
Traceback (most recent call last):
  File "/usr/local/bin/py.test", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/_pytest/config/__init__.py", line 61, in main
    config = _prepareconfig(args, plugins)
  File "/usr/local/lib/python3.7/site-packages/_pytest/config/__init__.py", line 196, in _prepareconfig
    pluginmanager=pluginmanager, args=args
  File "/usr/local/lib/python3.7/site-packages/pluggy/hooks.py", line 284, in __call__               [26/1974]
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 68, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 62, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 203, in _multicall
    gen.send(outcome)
  File "/usr/local/lib/python3.7/site-packages/_pytest/helpconfig.py", line 93, in pytest_cmdline_parse
    config = outcome.get_result()
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/usr/local/lib/python3.7/site-packages/_pytest/config/__init__.py", line 655, in pytest_cmdline_parse
    self.parse(args)
  File "/usr/local/lib/python3.7/site-packages/_pytest/config/__init__.py", line 841, in parse
    self._preparse(args, addopts=addopts)
  File "/usr/local/lib/python3.7/site-packages/_pytest/config/__init__.py", line 797, in _preparse
    early_config=self, args=args, parser=self._parser
  File "/usr/local/lib/python3.7/site-packages/pluggy/hooks.py", line 284, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 68, in _hookexec                          return self._inner_hookexec(hook, methods, kwargs)
  File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 62, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
    return outcome.get_result()
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 182, in _multicall
    next(gen)  # first yield
  File "/usr/local/lib/python3.7/site-packages/_pytest/capture.py", line 66, in pytest_load_initial_conftests
    capman.start_global_capturing()
  File "/usr/local/lib/python3.7/site-packages/_pytest/capture.py", line 110, in start_global_capturing
    self._global_capturing = self._getcapture(self._method)
  File "/usr/local/lib/python3.7/site-packages/_pytest/capture.py", line 95, in _getcapture
    return MultiCapture(out=True, err=True, Capture=FDCapture)
  File "/usr/local/lib/python3.7/site-packages/_pytest/capture.py", line 440, in __init__
    self.out = Capture(1)
  File "/usr/local/lib/python3.7/site-packages/_pytest/capture.py", line 526, in __init__
    f = TemporaryFile()
  File "/usr/local/lib/python3.7/tempfile.py", line 586, in TemporaryFile
    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)
  File "/usr/local/lib/python3.7/tempfile.py", line 126, in _sanitize_params
    dir = gettempdir()
  File "/usr/local/lib/python3.7/tempfile.py", line 294, in gettempdir
    tempdir = _get_default_tempdir()
  File "/usr/local/lib/python3.7/tempfile.py", line 229, in _get_default_tempdir
    dirlist)
FileNotFoundError: [Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/home/pytest']
make: *** [coverage] Error 1

Docker版本

MacOS版本

Dockerfile

# Original inspiration for this file from
# https://stackoverflow.com/questions/35322452/is-there-a-way-to-sandbox-test-execution-with-pytest-especially
ARG SOURCE_IMAGE
FROM ${SOURCE_IMAGE}

RUN adduser --disabled-password --gecos "" --uid 7357 pytest
COPY ./ /home/pytest
WORKDIR /home/pytest

# setup the python and pytest environments
RUN pip install --upgrade pip setuptools pytest
RUN pip install --upgrade -r requirements.txt
RUN pip install --upgrade -r requirements_dev.txt
RUN python setup.py develop

# setup entry point
USER pytest

Makefile

覆盖率目标

coverage: ## check code coverage quickly with the default Python
    $(DOCKER_RUN_COMMAND) py.test --cov
    $(DOCKER_RUN_COMMAND) python -m pytest \
        --cov-report annotate \
        --cov-report html \
        --cov=example \
        tests
    #$(BROWSER) htmlcov/index.html

构建目标

env: ## Build a container for running tests and a volume for mounting code.
    docker volume create --name example
    docker build --no-cache -f Dockerfile \
        --build-arg SOURCE_IMAGE=${SOURCE_IMAGE} \                                                                             -t ${RUN_IMAGE} .

没有多余的图片

即使我运行docker system prune -a --force

，也会发生此故障

这是docker image ls

的当前输出

docker image ls
REPOSITORY                                              TAG                 IMAGE ID            CREATED             SIZE
example_pytest                                          latest              83fbd031c581        13 seconds ago      1.02GB
<internal_artifactory_uri>/docker-users-virtual/python   3                   ac069ebfe1e1        2 days ago          927MB

删除Docker.raw没有帮助

This ticket要求用户删除Docker.raw文件，以解决类似问题。根据ls，我的Docker.raw文件为60Gb。

ls -lha ~/Library/Containers/com.docker.docker/Data/vms/0/Docker.raw
-rw-r--r--  1 alexl  HQ\Domain Users    60G Feb 15 00:13 /Users/alexl/Library/Containers/com.docker.docker/Data/vms/0/Docker.raw

但是删除Docker.raw文件，重新启动服务并重新运行命令会导致新的错误。这个新错误似乎更容易处理，但在运行make目标几次（5-10次）之后，我再次遇到第一个空间不足的问题。

tests/test_example.py .                                                  [100%]                               INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/_pytest/main.py", line 203, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/_pytest/main.py", line 243, in _main
INTERNALERROR>     config.hook.pytest_runtestloop(session=session)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pluggy/hooks.py", line 284, in __call__
INTERNALERROR>     return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 68, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pluggy/manager.py", line 62, in <lambda>
INTERNALERROR>     firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pluggy/callers.py", line 203, in _multicall
INTERNALERROR>     gen.send(outcome)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pytest_cov/plugin.py", line 229, in pytest_runtestloop
INTERNALERROR>     self.cov_controller.finish()
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/pytest_cov/engine.py", line 114, in summary
INTERNALERROR>     self.cov.annotate(ignore_errors=True, directory=annotate_dir)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/coverage/control.py", line 1062, in annotate
INTERNALERROR>     reporter.report(morfs, directory=directory)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/coverage/annotate.py", line 52, in report
INTERNALERROR>     self.report_files(self.annotate_file, morfs, directory)
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/coverage/report.py", line 91, in report_files
INTERNALERROR>     report_fn(fr, self.coverage._analyze(fr))
INTERNALERROR>   File "/usr/local/lib/python3.7/site-packages/coverage/annotate.py", line 72, in annotate_file
INTERNALERROR>     with io.open(dest_file, 'w', encoding='utf8') as dest:
INTERNALERROR> PermissionError: [Errno 13] Permission denied: '/home/pytest/example/__init__.py,cover'

===================== 1 passed, 2 warnings in 0.05 seconds =====================
make: *** [coverage] Error 3