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Docker build fails with adduser command using Google Cloud SDK base image

Docker build fails with adduser command using Google Cloud SDK base image

 


I'm working on a Dockerfile that uses gcr.io/google.com/cloudsdktool/google-cloud-cli:latest as a base image. My goal is to add a non-root user and configure it to have sudo access without a password. However, when I try to add a new user using the adduser command, the build process fails. The relevant parts of my Dockerfile are:

# Debian/Ubuntu base image example FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:latest # More installation commands here… # Add and configure non-root users ARG USER=coder RUN adduser – -disabled-password –gecos '' ${USER} && \ echo “${USER} ALL=(ALL) NOPASSWD:ALL” > /etc/sudoers.d/${USER} && \ chmod 0440 / etc/sudoers .d/${USER} user ${USER} WORKDIR /home/${USER}

The following error occurs during the build process:

Error: Process “/bin/sh -c adduser –disabled-password –gecos '' ${USER} && echo \”${USER} ALL=(ALL) NOPASSWD:ALL\” > /etc/sudoers.d /${USER} && chmod 0440 /etc/sudoers.d/${USER}” did not complete successfully: Exit code: 2

This is the output from Terraform running the Docker build process. Despite following suggestions such as validating the base image, considering using useradd instead of adduser, ensuring that environment variables are passed correctly, and breaking the RUN command into smaller steps for debugging. The problem persists.

I'm not sure if this is related to the basic image details of the Google Cloud SDK, or if there's something wrong with my approach to adding users to this Docker environment. Has anyone faced a similar issue or has any insight into what's going wrong here?

Sources

1/ https://Google.com/

2/ https://stackoverflow.com/questions/78264370/docker-build-fails-on-adduser-command-with-google-cloud-sdk-base-image

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