CODEWITHSUNDEEP
dockerbuildgcloud
Vinay Joseph
Vinay Joseph

Reputation: 5655

docker run fails with /bin/sh:0 -c requires an argument

I am trying to run a docker image

Dockerfile

FROM marketplace.gcr.io/google/ubuntu1804:latest
MAINTAINER Vinay Joseph ([email protected])
LABEL ACI_COMPONENT="License Server"
EXPOSE 20000/tcp

#Install Unzip
RUN apt-get install unzip

#Unzip License Server to /opt/MicroFocus
RUN mkdir /opt/MicroFocus
RUN cd /opt/MicroFocus

#Download the License Server
RUN curl -O https://storage.googleapis.com/software-idol-21/LicenseServer_12.1.0_LINUX_X86_64.zip
RUN chmod 777 LicenseServer_12.1.0_LINUX_X86_64.zip
RUN unzip LicenseServer_12.1.0_LINUX_X86_64.zip

cloudbuild.yaml 

steps:
- name: 'gcr.io/cloud-builders/docker'
  args: ['build', '-t', 'gcr.io/xxxx/idol-licenseserver', '.']
images:
- 'gcr.io/xxxx/idol-licenseserver'

The message i get is 

docker run gcr.io/xxxx/idol-licenseserver

/bin/sh: 0: -c requires an argument

Upvotes: 2

Views: 1955

Answers (2)

questionto42
questionto42

Reputation: 9542

ENTRYPOINT ["/bin/sh", "-c"] is the default entrypoint in every Dockerfile if you do not choose your own entrypoint. If you run the Dockerfile, add a command of your choice that you would like to run. At best just try bash:

docker run -it gcr.io/xxxx/idol-licenseserver bash

Without adding any command, the container does not know what to run in the command line but still starts the bash (sh in this case) to run something, waiting for a command = -c requires an argument.

Upvotes: 0

grapes
grapes

Reputation: 8636

There are a couple of problems with your Dockerfile

First

RUN apt-get install unzip

A good practice is to perform an update before installing packages, otherwise you could fall into situation with missing package lists.

RUN apt-get update && apt-get install -y ...

Second

RUN mkdir /opt/MicroFocus
RUN cd /opt/MicroFocus

This is mistake because cd doesn't work between layers (different RUN commands). What you wanted is achieved with single WORKDIR command

WORKDIR /opt/MicroFocus

Third

The error message that you are facing means that base image is configured with something like ENTRYPOINT ["sh", "-c"] therefore expecting you to provide initial command line when launching this image. You have to define the proper startup command and append it to your command after image name.

Upvotes: 3

Related Questions