Update Dockerfile to match Devbox Cloud (#973)

## Summary

TSIA -- moves our generated dockerfile to a `debain:stable-slim` base

## How was it tested?

`docker build .` on an example project

---------

Co-authored-by: mohsenari <[email protected]>

Author: Lagoja

internal/impl/tmpl/devcontainerDockerfile.tmpl

@@ -1,30 +1,30 @@
-FROM alpine:3
+FROM debian:stable-slim
 
-# Setting up devbox user
-ENV DEVBOX_USER=devbox
-RUN adduser -h /home/$DEVBOX_USER -D -s /bin/bash $DEVBOX_USER
-RUN addgroup sudo
-RUN addgroup $DEVBOX_USER sudo
-RUN echo " $DEVBOX_USER      ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
+# Step 1: Installing dependencies
+RUN apt-get update
+RUN apt-get -y install bash binutils git xz-utils wget sudo
 
-# installing dependencies
-RUN apk add --no-cache bash binutils git libstdc++ xz sudo
+# Step 2: Setting up devbox user
+ENV DEVBOX_USER=devbox
+RUN adduser $DEVBOX_USER
+RUN usermod -aG sudo $DEVBOX_USER
+RUN echo "devbox ALL=(ALL:ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/$DEVBOX_USER
 
 USER $DEVBOX_USER
 
-# installing devbox
-RUN wget --quiet --output-document=/dev/stdout https://get.jetpack.io/devbox | bash -s -- -f
+# Step 3: Installing devbox
+RUN wget --quiet --output-document=/dev/stdout https://get.jetpack.io/devbox   | bash -s -- -f
 RUN chown -R "${DEVBOX_USER}:${DEVBOX_USER}" /usr/local/bin/devbox
 
-# nix installer script
-RUN wget --quiet --output-document=/dev/stdout https://nixos.org/nix/install | sh -s -- --no-daemon
+# Step 4: Installing Nix
+RUN wget --output-document=/dev/stdout https://nixos.org/nix/install | sh -s -- --no-daemon
 RUN . ~/.nix-profile/etc/profile.d/nix.sh
 # updating PATH
 ENV PATH="/home/${DEVBOX_USER}/.nix-profile/bin:/home/${DEVBOX_USER}/.devbox/nix/profile/default/bin:${PATH}"
 
+# Step 5: Installing your devbox project
 WORKDIR /code
 RUN sudo chown $DEVBOX_USER:root /code
 COPY devbox.json devbox.json
-RUN devbox run -- echo "Installing packages"
+RUN devbox install
 CMD ["devbox", "shell"]
-