Sstrhsrtj

I am trying to create an NVM base dockerfile from a debian base and I am unable to make node available on non-interactive shells (i.e no entrypoint with just a command)
Here is my Dockerfile:

ARG DEBIAN_VERSION=stable-slim



FROM library/debian:${DEBIAN_VERSION}



###########################################################################

# Core requirements

###########################################################################



# Install "libraries", "Software's"

RUN apt-get update && 

    apt-get install -y --allow-downgrades --allow-remove-essential --allow-change-held-packages --no-install-recommends 

        git 

        curl 

        locales 

        build-essential 

        ca-certificates && 

    apt-get clean && 

    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && 

    rm /var/log/lastlog /var/log/faillog



###########################################################################

# Creating non-root user:

###########################################################################



# Add a non-root user to prevent files being created with root permissions on host machine.

ARG PUID=1000

ENV PUID ${PUID}

ARG PGID=1000

ENV PGID ${PGID}

ARG GROUP_NAME=nvm

ARG USER_NAME=nvm



RUN groupadd -g ${PGID} ${GROUP_NAME} && 

    useradd --uid ${PUID} --gid ${GROUP_NAME} --shell /bin/bash --create-home ${USER_NAME} && 

    echo '${USER_NAME} ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers



###########################################################################

# Set Timezone & Locale

###########################################################################



ARG TZ=AEST

ENV TZ ${TZ}



RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && 

    echo $TZ > /etc/timezone && 

    locale-gen en_US.UTF-8



# Make sure to load the profile on interactive and non-interactive shells

ENV BASH_ENV=/etc/profile



###########################################################################

# Node / NVM:

###########################################################################



# Check if NVM needs to be installed

ARG NVM_VERSION=node

ENV NODE_VERSION ${NODE_VERSION}

ARG INSTALL_NODE=true



# Move to entrypoint script

ARG NPM_REGISTRY

ENV NPM_REGISTRY ${NPM_REGISTRY}

# Move to entrypoint script



ENV NVM_DIR /home/${USER_NAME}/.nvm



RUN if [ ${INSTALL_NODE} = true ]; then 

    # Install nvm (A Node Version Manager)

    mkdir $NVM_DIR && 

    curl -o- https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash && 

        . $NVM_DIR/nvm.sh && 

        nvm install $NVM_VERSION && 

        nvm use $NVM_VERSION && 

        NODE_VERSION=$(node --version) && 

        nvm alias default $NODE_VERSION && 

        if [ ${NPM_REGISTRY} ]; then 

            npm config set registry ${NPM_REGISTRY} 

        ;fi && 

        chown -R ${GROUP_NAME}:${USER_NAME} $NVM_DIR && 

        echo "export PATH=$PATH:$NVM_DIR/versions/node/${NODE_VERSION}/bin" >> /etc/profile && 

        echo '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm' >> /etc/profile && 

        echo '[ -s "$NVM_DIR/bash_completion" ] && . "$NVM_DIR/bash_completion"  # This loads nvm bash_completion' >> /etc/profile 

;fi



RUN ln -sf /bin/bash /bin/sh

ENV SHELL /bin/bash

# Set default work directory

WORKDIR /var/application

# Set Default user as application user

USER $USER_NAME

The only method that gave me any success was to have both:

ENV BASH_ENV=/etc/profile

ENTRYPOINT ["/bin/bash", "-c"]

But this is not ideal, I have tried to have the relevant lines as part of all the files listen in: this question
And it works successfully if i use

docker exec -it nvm bash

~ node --version

But does not work if I do:

docker exec nvm node --version

Can anyone explain what I may be missing here?