Docker build fails due to a missing Dockerfile in the project folder, which has Dockerfile_example, Instructions.md, and samplePage.html. New Dockerfile snippet:
FROM alpine
WORKDIR /app
COPY samplePage.html .
EXPOSE 8081
CMD ["serve", "samplePage.html"]
The issue appears to be due to Docker not locating the Dockerfile because its name does not match. In my experience, renaming your Dockerfile_example to Dockerfile resolved a similar problem. When building your Docker image, verify that the file exists at the expected location with the correct naming conventions, especially since Linux systems treat file names as case-sensitive. Also, review your build command to ensure the context includes the renamed file so Docker can correctly detect and use it.