frontend/dockerfile/linter/docs/CopyIgnoredFile.md
Attempting to Copy file "./tmp/Dockerfile" that is excluded by .dockerignore
When you use the Add or Copy instructions from within a Dockerfile, you should
ensure that the files to be copied into the image do not match a pattern
present in .dockerignore.
Files which match the patterns in a .dockerignore file are not present in the
context of the image when it is built. Trying to copy or add a file which is
missing from the context will result in a build error.
With the given .dockerignore file:
*/tmp/*
❌ Bad: Attempting to Copy file "./tmp/Dockerfile" that is excluded by .dockerignore
FROM scratch
COPY ./tmp/helloworld.txt /helloworld.txt
✅ Good: Copying a file which is not excluded by .dockerignore
FROM scratch
COPY ./forever/helloworld.txt /helloworld.txt