FROM ubuntu:22.04

# This is a test Dockerfile to see if it's actually being used
RUN echo "TESTING IF THIS DOCKERFILE IS ACTUALLY USED" > /test_file.txt && \
    echo "If you see this message, the correct Dockerfile is being used!" && \
    cat /test_file.txt

# Create a very obvious test directory
RUN mkdir -p /THIS_IS_A_TEST_DIRECTORY && \
    echo "TEST CONTENT" > /THIS_IS_A_TEST_DIRECTORY/test.txt

# Print test message during build
RUN echo "=================================================" && \
    echo "THIS IS A TEST BUILD - IF YOU SEE THIS, THE DOCKERFILE IS BEING USED" && \
    echo "================================================="

CMD ["cat", "/test_file.txt"]