让python和基于react组件的容器正常工作

Question

我正在尝试对接isomorphic app的这个工作流程。我构建了下面docker文件的容器。

FROM python:3.5-slim

RUN apt-get update && \
    apt-get -y install gcc mono-mcs && \
        apt-get -y install vim && \
        apt-get -y install nano && \
            rm -rf /var/lib/apt/lists/*

RUN mkdir -p /statics/js

VOLUME ["/statics/"]

WORKDIR /statics/js

COPY requirements.txt /opt/requirements.txt

RUN pip install -r /opt/requirements.txt

EXPOSE 8080

CMD ["python", "/statics/js/app.py"]

结果是这样的：

$ docker build -t ciasto/pythonreact:v2 .
Sending build context to Docker daemon 1.327 MB
Step 1/9 : FROM python:3.5-slim
 ---> b27a94c44674
Step 2/9 : RUN apt-get update &&     apt-get -y install gcc mono-mcs &&     apt-get -y install vim &&   apt-get -y install nano &&      rm -rf /var/lib/apt/lists/*
 ---> Using cache
 ---> c76cb348707c
Step 3/9 : RUN mkdir -p /statics/js
 ---> Using cache
 ---> 2ef5b24f551c
Step 4/9 : VOLUME /statics/
 ---> Using cache
 ---> 5e62c6af1867
Step 5/9 : WORKDIR /statics/js
 ---> Using cache
 ---> a5a018e8c727
Step 6/9 : COPY requirements.txt /opt/requirements.txt
 ---> Using cache
 ---> 1fa4dccc6608
Step 7/9 : RUN pip install -r /opt/requirements.txt
 ---> Running in 8845a0efcee7
Collecting TurboGears2==2.3.10 (from -r /opt/requirements.txt (line 1))
  Downloading TurboGears2-2.3.10.tar.gz (176kB)
Collecting Kajiki==0.6.3 (from -r /opt/requirements.txt (line 2))
  Downloading Kajiki-0.6.3.tar.gz (174kB)
Collecting tgext.webassets==0.0.2 (from -r /opt/requirements.txt (line 3))
  Downloading tgext.webassets-0.0.2.tar.gz
Collecting dukpy==0.1.0 (from -r /opt/requirements.txt (line 4))
  Downloading dukpy-0.1.0.tar.gz (2.0MB)
Collecting WebOb>=1.2 (from TurboGears2==2.3.10->-r /opt/requirements.txt (line 1))
  Downloading WebOb-1.7.2-py2.py3-none-any.whl (83kB)
Collecting crank<0.9.0,>=0.8.0 (from TurboGears2==2.3.10->-r /opt/requirements.txt (line 1))
  Downloading crank-0.8.1.tar.gz
Collecting repoze.lru (from TurboGears2==2.3.10->-r /opt/requirements.txt (line 1))
  Downloading repoze.lru-0.6.tar.gz
Collecting MarkupSafe (from TurboGears2==2.3.10->-r /opt/requirements.txt (line 1))
  Downloading MarkupSafe-1.0.tar.gz
Collecting nine (from Kajiki==0.6.3->-r /opt/requirements.txt (line 2))
  Downloading nine-1.0.0-py2.py3-none-any.whl
Collecting webassets (from tgext.webassets==0.0.2->-r /opt/requirements.txt (line 3))
  Downloading webassets-0.12.1.tar.gz (179kB)
Collecting cssmin (from tgext.webassets==0.0.2->-r /opt/requirements.txt (line 3))
  Downloading cssmin-0.2.0.tar.gz
Building wheels for collected packages: TurboGears2, Kajiki, tgext.webassets, dukpy, crank, repoze.lru, MarkupSafe, webassets, cssmin
  Running setup.py bdist_wheel for TurboGears2: started
  Running setup.py bdist_wheel for TurboGears2: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/51/1d/bb/c9cfdcf2a49f71955d5b66aed0dbd187e58e5d77a9fa34a4af
  Running setup.py bdist_wheel for Kajiki: started
  Running setup.py bdist_wheel for Kajiki: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/ad/fe/15/33e02c73fead4ea9238fcd31d273accf6fb9d922ec901e20c8
  Running setup.py bdist_wheel for tgext.webassets: started
  Running setup.py bdist_wheel for tgext.webassets: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/00/f2/09/0378f24bd9151b7a927093546c11685899ebec451b65eb181f
  Running setup.py bdist_wheel for dukpy: started
  Running setup.py bdist_wheel for dukpy: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/21/29/46/34c303b9dca370a8ccc97a84b094c8089b78edde125b0a1fcb
  Running setup.py bdist_wheel for crank: started
  Running setup.py bdist_wheel for crank: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/1c/00/54/4dcfd62d8268d7b34ea607bd9f8cb12aa930a7718c8c5fbc02
  Running setup.py bdist_wheel for repoze.lru: started
  Running setup.py bdist_wheel for repoze.lru: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/b2/cd/b3/7e24400bff83325a01d492940eff6e9579f553f33348323d79
  Running setup.py bdist_wheel for MarkupSafe: started
  Running setup.py bdist_wheel for MarkupSafe: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/88/a7/30/e39a54a87bcbe25308fa3ca64e8ddc75d9b3e5afa21ee32d57
  Running setup.py bdist_wheel for webassets: started
  Running setup.py bdist_wheel for webassets: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/9d/cb/c2/340b9b695822b6954840bcb6cd147b3a7cfc2bcd922296e63e
  Running setup.py bdist_wheel for cssmin: started
  Running setup.py bdist_wheel for cssmin: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/c3/79/88/647f59be446af4e9867362ca6e961cc7f218bd793fbdc351a6
Successfully built TurboGears2 Kajiki tgext.webassets dukpy crank repoze.lru MarkupSafe webassets cssmin
Installing collected packages: WebOb, crank, repoze.lru, MarkupSafe, TurboGears2, nine, Kajiki, webassets, cssmin, tgext.webassets, dukpy
Successfully installed Kajiki-0.6.3 MarkupSafe-1.0 TurboGears2-2.3.10 WebOb-1.7.2 crank-0.8.1 cssmin-0.2.0 dukpy-0.1.0 nine-1.0.0 repoze.lru-0.6 tgext.webassets-0.0.2 webassets-0.12.1
 ---> 86c189792ae7
Removing intermediate container 8845a0efcee7
Step 8/9 : EXPOSE 8080
 ---> Running in 9243a87c36e2
 ---> e7d35d54e66d
Removing intermediate container 9243a87c36e2
Step 9/9 : CMD python /statics/js/app.py
 ---> Running in 6e3b53cd901d
 ---> 0d79c4f81f3b
Removing intermediate container 6e3b53cd901d
Successfully built 0d79c4f81f3b

所以我的第一个问题是第9步是什么意思？这是否意味着它甚至在我运行容器之前就尝试运行/statics/js/app.py路径，因为这不会像我计划从host挂载此statics卷那样工作。其次，如果我运行以下命令：

$ docker run -it -v ~/Development/my-Docker-builds/pythonReact/statics/:/statics/ -d  ciasto/pythonreact:v2

03d77c87651e752450e3be0aa64a0841c088b32a1db5424ad96c150c949d0366

我得到了散列键，但什么都不起作用！我甚至看不到app.py的启动跟踪或错误消息有任何错误。

那么，当我运行容器时，应该如何从主机挂载的卷运行app.py呢？

Answer 1

您可以考虑将CMD作为容器的启动脚本。话虽如此，在步骤9中，它只是将pyhton /statics/js/app.py标记为无论何时启动容器都要执行。此外，由于您使用的是-d标志，您将无法看到日志，因此您必须使用docker logs命令获取日志，如下所示：

docker logs 03d77c87651e752450e3be0aa64a0841c088b32a1db5424ad96c150c949d0366

这些日志应该足以帮助您找出问题所在。我希望它能帮上忙。