feat: add one-command Traefik deployment

Containerfile.release

@@ -0,0 +1,34 @@
+ARG NGINX_IMAGE=nginxinc/nginx-unprivileged:1.31.3-alpine@sha256:18d67281256ded39ff65e010ae4f831be18f19356f83c60bc546492c7eb6dd23
+
+FROM ${NGINX_IMAGE} AS release
+
+ARG TOOLBOX_RELEASE_VERSION=0.2.0
+ARG TOOLBOX_RELEASE_SHA256=60b37de7f26ae430737cb014a86e8b9b15e9eafe0a6883d6a28d06d9611ee237
+ARG TOOLBOX_RELEASE_BASE_URL=https://git.add-ideas.de/zemion/toolbox-portal/releases/download
+
+RUN set -eu; \
+    archive="add-ideas-toolbox-${TOOLBOX_RELEASE_VERSION}.zip"; \
+    curl --fail --location --silent --show-error --proto '=https' \
+      --proto-redir '=https' --tlsv1.2 \
+      --output "/tmp/${archive}" \
+      "${TOOLBOX_RELEASE_BASE_URL}/v${TOOLBOX_RELEASE_VERSION}/${archive}"; \
+    echo "${TOOLBOX_RELEASE_SHA256}  /tmp/${archive}" | sha256sum -c -; \
+    mkdir -p /tmp/toolbox; \
+    unzip -q "/tmp/${archive}" -d /tmp/toolbox; \
+    test -f /tmp/toolbox/index.html; \
+    test -f /tmp/toolbox/toolbox.catalog.json; \
+    test -f /tmp/toolbox/toolbox.release.json; \
+    test -f /tmp/toolbox/apps/pdf/toolbox-app.json; \
+    test -f /tmp/toolbox/apps/xslt/toolbox-app.json; \
+    test -f /tmp/toolbox/apps/onenote/toolbox-app.json; \
+    rm "/tmp/${archive}"
+
+FROM ${NGINX_IMAGE}
+
+COPY --chown=101:101 deploy/nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=release --chown=101:101 /tmp/toolbox/ /usr/share/nginx/html/
+
+USER 101:101
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget --quiet --spider http://127.0.0.1:8080/toolbox.catalog.json || exit 1