Can't create a docker image for COPY failed: stat /var/lib/docker/tmp/docker-builder error

Question

I want to create a docker image. This is my work directory: Dockerfile.in test.json test.py

And this is my Dockerfile:

COPY ./test.json /home/test.json
COPY ./test.py /home/test.py

RUN python test.py

When i launch this command: docker build -f Dockerfile.in -t 637268723/test:1.0 .

It gives me this error:

`Step 1/5 : COPY ./test.json /home/test.json
 ---> Using cache
 ---> 6774cd225d60
 Step 2/5 : COPY ./test.py /home/test.py
 COPY failed: stat /var/lib/docker/tmp/docker-builder428014112/test.py: 
 no such file or directory`

Can anyone help me?

Answer 1

You should put those files into the same directory with Dockerfile.

Answer 2

Check if there's a .dockerignore file, if so, add:

!mydir/test.json
!mydir/test.py

Answer 3

1. Q1: Check your .dockerignore file in build path, the files or dir you want to copy may be in the ignore file list!
2. Q2: The COPY directive is based on the context in which you are building the image, so be aware of any problems with the directory where you are currently building the image! See: https://docs.docker.com/engine/reference/builder/#copy