getting permission denied in docker run

Question

I am trying using Docker using Dockerfile.

My Dockerfile as follows, where I am using debian linux system.

FROM debian:jessie

ENV DEBIAN_FRONTEND noninteractive

ARG AIRFLOW_VERSION=1.7.1.3
ENV AIRFLOW_HOME /usr/local/airflow

..
..

COPY script/entrypoint.sh /entrypoint.sh
COPY config/airflow.cfg ${AIRFLOW_HOME}/airflow.cfg
..
..    
USER airflow
WORKDIR ${AIRFLOW_HOME}
ENTRYPOINT ["/entrypoint.sh"]

So when I run docker build -t test ., it build without problem.

However, when I run docker run -p 8080:8080 test.

It throws following error:

container_linux.go:247: starting container process caused "exec: \"/entrypoint.sh\": permission denied"
docker: Error response from daemon: oci runtime error: container_linux.go:247: starting container process caused "exec: \"/entrypoint.sh\": permission denied".

What is I am doing wrong ?

Highball

Do this in the app repo: chmod +x entrypoint.sh – Desegregate

Robert's right. The container_linux.go:247 error just refers to an error thrown from the container's ENTRYPOINT or CMD. In this case, a permissions issue. – Chasechaser

You are right robert, Thanks.. – Highball

I had a similar error because I tried to docker run a DIRECTORY (copy/paste mistake) instead of an executable FILE. – Julenejulep

Answer 1

You need to change the permission of the bash file by chmod +x entrypoint.sh before calling ENTRYPOINT. So change your code to the following:

USER airflow
WORKDIR ${AIRFLOW_HOME}
RUN chmod +x entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

Rebuild the image and run the container, it should work.

Neumann

same issues, following this Google CLoud Platform tutorial [cloud.google.com/cloud-build/docs/quickstart-docker? ] I edited my code following your advice but still get the same permission denied error. FROM alpine COPY quickstart.sh / RUN chmod +x quickstart.sh CMD ["/quickstart.sh"] docker run gcr.io/autotagging-api/quickstart-image OCI runtime create failed: container_linux.go:346: starting container process caused "exec: \"/quickstart.sh\": permission denied": unknown. I am running docker desktop for windows – Venation

Adding the RUN doesn't appear to fix anything. I had to apply it to the file locally to test that everything was working, but still blocked by why the permissions are not changed using RUN – Crayton

Is there a reason why the RUN command wouldn't work? I'm still getting unable to start container process: exec: "/usr/app/entrypoint.sh": permission denied: unknown after adding a RUN chmod +x entrypoint.sh Basically, I had to use Dinei's answer below (https://mcmap.net/q/322195/-getting-permission-denied-in-docker-run) – Almanac

Answer 2

Since COPY copies files including their metadata, you can also simply change the permissions of the file in the host machine (the one building the Docker image):

$ chmod +x entrypoint.sh

Then, when running docker build -t test . the copied file will have the execution permission and docker run -p 8080:8080 test should work.

Obs.: I'm not advocating this as best practice, but still, it works.

Authors

Answer 3

In your terminal, run "chmod +x entrypoint.sh"

or if the entrypoint.sh file is in a folder, run "chmod +x folder_name/entrypoint.sh"

Settera

Answer 4

I changed the location of the entrypoint in the dockerfolder and rebuild & it worked!

Vespiary

Can you elaborate? – Wade

sure, I replaced the path in Dockerfile were it's /entrypoint to /user/local/entrypoint and rebuild the image. – Vespiary