During the Docker build process, I encounter an error when trying to copy the file puppeteer-latest.tgz into the container. The error message indicates that the source file is missing and the cache key cannot be computed. I suspect this might be due to the file not being present in the build context or an incorrect file path. I need help in troubleshooting this issue to ensure the file is properly referenced and copied during the image build.
Below is an example Dockerfile snippet that illustrates a similar scenario with different file names and structure:
FROM node:14-alpine
WORKDIR /app
COPY archive-package.tgz /usr/local/app/archive-package.tgz
RUN tar -xzf /usr/local/app/archive-package.tgz -C /usr/local/app && rm /usr/local/app/archive-package.tgz
CMD ["node", "server.js"]
hey, check u r .dockerignore - maybe it’s causing the file to be skipped. i had this issue before when the file path didnt match the build context. double-check the file exists in the context and that path matches exactly.
The error you are seeing suggests that the Docker build is not finding the file in the expected location, meaning the file might be missing from your build context or inadvertently excluded. I faced a similar issue where a misconfigured .dockerignore file ended up excluding critical files from the context. I resolved it by double-checking the file paths and confirming the file was added to the context. Verifying the inclusion of the file in the build folder often proves to be an effective first step in debugging such issues.
I encountered a similar error a while ago when I was trying to copy a configuration file into my Docker image. In my particular case, the issue was not just about the file being absent, but it turned out that I was referencing the file from a directory different than the build context. I had placed the Dockerfile in another folder, so the relative path to the file was off. Rearranging the directory structure so that both the Dockerfile and the necessary files were in the same build context resolved the issue. I recommend verifying your context structure and adjusting paths accordingly.