Dockerfile: COPY failed: file not found in build context or excluded by .dockerignore:

General
1

Hello everybody,

I am currently struggling with COPY instruction in Dockerfile.

When put instruction inside the Dockerfile:
COPY test_copy.txt .
and after that start build image I get the result :
COPY failed: file not found in build context or excluded by .dockerignore: stat test_copy.txt: file does not exist

File test_copy.txt is stored in the same dir as Dockerfile.
My guess is that should be copied test_copy.txt file to inside the root of the container, but not working.

To mention that I did not have a .gitignore file.

2

It is .dockerignore not .gitignore. How do you try to build the image? You must et the build context properly. To test what is in your build context, try to copy a whole context:

COPY . /context

I sometimes create files with incorrect names like test_copy. txt.
Notice the extra space before the extension. You can to delete the file and create again but I assume it was not the first file you tried.