feat(images): add minimal image (#216)

Adds a minimal image based on ubuntu 22.04 with bash, git, curl, and sudo.

README.md

@@ -26,6 +26,9 @@ solid out-of-the-box developer experience:
 - python3 & pip3
 - gcc & gcc-c++ & make
 
+The one exception is the `minimal` image, which contains only bash, curl, git, and
+sudo.
+
 ## Images on Docker Hub
 
 Each of these images is also published to Docker Hub under the

images/minimal/Dockerfile.ubuntu

@@ -0,0 +1,24 @@
+FROM ubuntu:22.04
+
+USER root
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        bash \
+        ca-certificates \
+        curl \
+        git \
+	sudo
+
+RUN apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN useradd coder \
+        --create-home \
+        --shell=/bin/bash \
+        --uid=1000 \
+        --user-group && \
+    echo "coder ALL=(ALL) NOPASSWD:ALL" >>/etc/sudoers.d/nopasswd
+
+ENV LANG en_US.UTF-8
+USER coder

images/minimal/README.md

@@ -0,0 +1,11 @@
+# Minimal Image
+
+This image only contains the bare necessities:
+
+- bash
+- curl
+- ca-certificates
+- git
+- sudo
+
+It is mainly meant for testing purposes.

scripts/images.sh

@@ -21,6 +21,7 @@ IMAGES=(
   "clion"
   "goland"
   "intellij"
+  "minimal"
   "jupyter"
   "pycharm"
   "webstorm"