Add separate stage to build a distrobox optimized container

Signed-off-by: Felix Bartels <felix@9wd.eu>

helpers/surfer/Dockerfile

@@ -1,4 +1,41 @@
-FROM node:lts-alpine
+FROM node:lts as build
-RUN apk add --no-cache make python3 zip
 # use --unsafe to not execute post actions as user nobody
-RUN npm -g install cloudron-surfer@6.0.0 --unsafe && npm cache clean --force && surfer --version
+RUN npm -g install cloudron-surfer@6.0.0 --unsafe && \
+    npm cache clean --force && \
+    surfer --version
+
+FROM build as distrobox
+# Install essential packages and locales
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        apt-utils \
+        bash \
+        bash-completion \
+        bc \
+        curl \
+        dialog \
+        diffutils \
+        findutils \
+        gnupg2 \
+        less \
+        libegl1-mesa \
+        libgl1-mesa-glx \
+        libnss-myhostname \
+        libvte-2.9*-common \
+        libvte-common \
+        libvulkan1 \
+        locales \
+        lsof \
+        mesa-vulkan-drivers \
+        ncurses-base \
+        passwd \
+        pinentry-curses \
+        procps \
+        sudo \
+        time \
+        tzdata \
+        util-linux \
+        wget
+
+# make sure that the distrobox stage is not the last one
+FROM build as surfer

helpers/surfer/build.sh

@@ -19,6 +19,12 @@ else
 fi
 
 $CMD build . -t "$DOCKER_IMAGE:latest"
+$CMD build . --target distrobox -t "$DOCKER_IMAGE:distrobox"
+
 $CMD tag "$DOCKER_IMAGE:latest" "$DOCKER_IMAGE:$VERSION"
-$CMD push "$DOCKER_IMAGE:latest"
+
-$CMD push "$DOCKER_IMAGE:$VERSION"
+if [ "${1:-}" == "push" ]; then
+	$CMD push "$DOCKER_IMAGE:latest"
+	$CMD push "$DOCKER_IMAGE:$VERSION"
+	$CMD push "$DOCKER_IMAGE:distrobox"
+fi