When working with Docker, placing your .dockerignore file in the right location is crucial for optimizing builds and improving security. Many developers wonder: should .dockerignore be in the same location as the Dockerfile ? The short answer is yes , but with some considerations. π Understanding the Docker Build Context The build context is the directory that Docker uses when running docker build . It includes all files and subdirectories unless explicitly excluded using .dockerignore . docker build -t my-image:latest /path/to/build-context In this command: /path/to/build-context is the build context . Docker will reference the .dockerignore file inside this directory . If a .dockerignore file is present, Docker will exclude listed files from the build context, reducing image size and improving security. π Where to Place .dockerignore ? The .dockerignore file should be placed in the root of your build context —not necessarily ne...