Restructure repository into output workspace

output/docker/packager/Dockerfile

@@ -0,0 +1,34 @@
+# Containerised build environment for Cloudron packaging
+FROM node:20-bullseye
+
+ARG CLOUDRON_CLI_VERSION=latest
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update \
+    && apt-get install --yes --no-install-recommends \
+       ca-certificates \
+       curl \
+       git \
+       jq \
+       python3 \
+       python3-pip \
+       rsync \
+       sudo \
+       tini \
+       unzip \
+       wget \
+       docker.io \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN npm install --global "cloudron@${CLOUDRON_CLI_VERSION}"
+
+# Create non-root user that matches Cloudron packaging expectations
+RUN useradd --create-home --shell /bin/bash packager \
+    && echo 'packager ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/packager
+
+USER packager
+WORKDIR /workspace
+
+ENTRYPOINT ["tini", "--"]
+CMD ["bash"]