Docker: Why is my container throwing 'Permission Denied' when trying to execute the entrypoint script?

Docker: Error Creating Shim Task: Troubleshooting "Permission Denied" Failure

In this context, a user encountered an error while building a Docker image based on the provided Dockerfile. When trying to run the container, they received the following error:

docker: Error response from daemon: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "./deployment-service": permission denied: unknown.

Cause:

The error suggests that the container's entrypoint script, "./deployment-service," lacks executable permissions.

Solution:

To resolve this issue, the user added the following RUN command before the CMD entrypoint:

RUN chmod +x deployment-service

This command sets execute permissions on the "./deployment-service" script, ensuring that the container can successfully execute the entrypoint when it starts.

Conclusion:

By granting execute permissions to the container's entrypoint script, the user was able to successfully build and run the Docker image, eliminating the "permission denied" error.

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