Reputation: 448

Docker CMD - Path to script

How to pass the path of the script file to the CMD in the Dockerfile?

Here is my Dockerfile

FROM openjdk:8-jdk-alpine as base

EXPOSE 8080    

WORKDIR '/app'

COPY run/ .

RUN mvn clean install

FROM openjdk:8-jdk-alpine

WORKDIR '/app'

COPY --from=base /app/data/startup.sh ./startup.sh

RUN ["chmod", "+x", "startup.sh"]

CMD ["startup.sh", "start"]

When I gave CMD ["/app/startup.sh", "start"], throws the below error

Cannot start service myapp: OCI runtime create failed: 
container_linux.go:367: starting container process caused: exec: "/app/startup.sh": stat 
/app/startup.sh: no such file or directory: unknown

The documentation says the path would be relative to the WORKDIR, so I tried passing the scriptname alone as it is now - CMD ["startup.sh", "start"] which resulted in the below error:

Cannot start service myapp: OCI runtime create failed: 
container_linux.go:367: starting container process caused: exec: "service.sh": executable file 
not found in $PATH: unknown

The startup.sh is a simple script file with a shebang - #!/bin/sh

Am I missing anything here? I am using docker desktop for windows and get the error when I run docker-compose up just fyi.

Please share how I can resolve this issue. Thanks

Upvotes: 4