i get a wrong when i build a dockerfile i have no idea for it

Question

I'm run docker in windows10 ,my dockerfile like this

FROM python:2.7-slim

WORKDIR E:/docker

ADD . E:/docker

RUN pip install -r requirements.txt

EXPOSE 80

ENV NAME World

CMD ["python", "app.py"]

when i run docker build -t friendlyhello . i get a wrong like this:

E:\docker-demo>docker build -t friendlyhello .

Sending build context to Docker daemon  4.608kB

Step 1/7 : FROM python:2.7-slim

 ---> d0d1b97dd328

Step 2/7 : WORKDIR E:/docker

 ---> Using cache

 ---> 305b573b82a5

Step 3/7 : ADD . E:/docker

 ---> 6d25bd33ba84

Step 4/7 : RUN pip install -r E:/docker-demo/requirements.txt

 ---> Running in e68dd3cd1c71

Could not open requirements file: [Errno 2] No such file or directory: 'E:/docker-demo/requirements.txt'

The command '/bin/sh -c pip install -r E:/docker-demo/requirements.txt' returned a non-zero code: 1

it make the RUN as /bin/sh -c. but it shoud be cmd /S /C in windows ,and it can be worked when I run the pip install -r requirements.txt at commonds lines direct.I have no idea how to resove it.thanks for answer

it worked with your Suggest! thanks very mach – tangtangtang Jun 07 '18 at 15:37 — tangtangtang, Jun 07 '18 at 15:37

score 2 · Answer 1 · answered Jun 07 '18 at 14:23

2

requirements.txt should be present at the same location where your docker file is

answered Jun 07 '18 at 14:23

gargkshitiz

2,130
17
19

yes,there're in the same location. it can be worked when I run the code pip install -r requirements.txt at the commond, – tangtangtang Jun 07 '18 at 14:29

score 1 · Accepted Answer · answered Jun 07 '18 at 18:08

Replace E:/docker with /tmp/ (any suitable path in form of linux directory structure) in dockerfile and execute docker build -t friendlyhello .

my dockerfile:

FROM python:2.7-slim

WORKDIR /tmp/

ADD . /tmp/

RUN pip install -r requirements.txt

EXPOSE 80

ENV NAME World

CMD ["python", "app.py"]

score 0 · Answer 3 · answered Jun 07 '18 at 14:24

0

One idea would be to specify the full path to the requirements.txt and make sure that it exists

answered Jun 07 '18 at 14:24

Manos Agelidis

91
5

can you try copying the requirements.txt inside the docker image? As proposed here https://stackoverflow.com/questions/34398632/docker-how-to-run-pip-requirements-txt-only-if-there-was-a-change – Manos Agelidis Jun 07 '18 at 14:37
hello ,I have modify it – tangtangtang Jun 07 '18 at 14:51

score 0 · Answer 4 · answered Feb 28 '19 at 10:37

You have to find correct context for docker to start from. Try navigating to parent folder and use -f argument of "docker build" to specify path to Dockerfile:

cd ../ParentFolder
docker build -f ../ParentFolder/ChildFolder/Dockerfile -t imagename .

Otherwise, try editing your Dockerfile

i get a wrong when i build a dockerfile i have no idea for it

4 Answers4