[GIt Docker] Apply patch inside container

docker exec container-id sh -c "patch -p1 < your-file.diff"

Replace container-id with the ID of the container you want to run the command in, and your-file.diff with the name of the git diff file you want to apply.

The patch command reads the diff file from standard input (< your-file.diff) and applies the changes to the files in the current directory. The -p1 option tells patch to strip the first level of the file path from the patch file, so that it can be applied to the correct files in the current directory.

Note that you should only apply the git diff file inside the container if you have a specific need to do so. In general, it's better to modify your source code outside the container and rebuild the image, as modifying files inside the container can create inconsistencies and make it more difficult to maintain your application over time.