CODEWITHSUNDEEP
dockerdocker-composedockerfile
SrigandanS
SrigandanS

Reputation: 55

Can't create a docker image for COPY failed: stat /var/lib/docker/tmp/docker-builderXXXXXX error

I'm not able to build my image. Below is the line that I feel as the challenge. Please have a look and suggest me if I have done anything wrong. I'm trying to copy a zip file that is present in the current folder as the Dockerfile and docker-compose file. I don't have a .dockerignore file also. I'm declaring the file name as ENV and passing that value in docker-compose file.

COPY ${FILE_NAME}.zip /app/

My docker-compose file is like this.

version: '3.7'
services:
    tws:
        build:
            context: .
            dockerfile: Dockerfile
        ports:
            - "8085:8085"
        environment:
            - FILE_NAME=xxxxx

Below is the error that come during docker-compose up

ERROR: Service 'yyy' failed to build: COPY failed: stat /var/lib/docker/tmp/docker-builder467027701/.zip: no such file or directory

EDIT: It is working fine if I provide the actual name instead of ENV in the Dockerfile

Upvotes: 0

Views: 240

Answers (1)

davidxxx
davidxxx

Reputation: 131526

I think that what you need is a build argument because you perform the COPY task at the build time and not at the container start time.
Remove that part :

environment:
   - FILE_NAME=xxxxx

And update your compose such as :

build:
   args:
     - FILE_NAME=xxxxx

And declare the ARG in the Dockerfile :

FROM ...
ARG FILE_NAME
...
COPY ${FILE_NAME}.zip /app/

Upvotes: 1

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