CODEWITHSUNDEEP
pythondocker
user4093955
user4093955

Reputation:

Why do I need a shell script to run a python script inside the container?

Why does the first Dockerfile does not work? Meaning that it reports docker: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"python3 hello.py\": executable file not found in $PATH": unknown. ERRO[0001] error waiting for container: context canceled, where as the second Dockerfile works like a charm?

In other words, why do I need a shell script to run a python script inside the container?

Dockerfile 1:

FROM python:3.7-alpine
COPY hello.py .
ENTRYPOINT [ "python hello.py" ]

Dockerfile 2:

FROM python:3.7-alpine
COPY hello.py .
COPY entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/entrypoint.sh
ENTRYPOINT [ "entrypoint.sh" ]

Upvotes: 0

Views: 154

Answers (1)

Siyu
Siyu

Reputation: 12089

ENTRYPOINT syntax requires either

  • ENTRYPOINT [ "python", "hello.py" ] exec form, recommended

  • ENTRYPOINT python hello.py shell form

Upvotes: 0

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