Add non-Nix Dockerfile

Tested using:
  podman build --build-arg SITE=angestoepselt .
  podman run -p 8123:80 -e ZAMMAD_TOKEN=1 -e HCAPTCHA_SITE_KEY=1 -e HCAPTCHA_SECRET_KEY=1 <the-image-that-was-just-built>

.eleventy.js

@@ -19,7 +19,9 @@ function hyphenize(input) {
 module.exports = function (eleventyConfig) {
 	const siteName = process.env.SITE;
 	if (!siteName) {
-		throw 'Cannot determine the name of the site to build. Make sure to set the SITE environment variable.';
+		throw new Error(
+			'Cannot determine the name of the site to build. Make sure to set the SITE environment variable.'
+		);
 	}
 
 	eleventyConfig.addPlugin(pluginRss);

Dockerfile

@@ -0,0 +1,59 @@
+#
+# Static site build phase
+#
+FROM node:16 as build
+ARG SITE
+
+WORKDIR /build
+
+COPY package.json package-lock.json /build/
+RUN npm ci
+
+COPY styles /build/styles/
+RUN npm run build:styles
+
+COPY .eleventy* /build/
+COPY assets /build/assets/
+COPY includes /build/includes/
+COPY sites/${SITE} /build/sites/${SITE}/
+RUN SITE=${SITE} npm run build
+
+
+#
+# Actual server container
+#
+FROM python:3.10-alpine
+ARG SITE
+
+# Install dependencies, see flake.nix for details.
+RUN apk add --no-cache lighttpd && \
+	python -m pip install itsdangerous requests
+
+COPY --from=build /build/dist /www/
+COPY cgi-bin /cgi-bin/
+COPY sites/${SITE}/httpd.conf /httpd.conf
+
+# Patch the lighttpd config file. These placeholders expect a Nix derivation
+# path, so the Python binary used in the end is at @python@/bin/python. The
+# values here make sure they are found correctly in the non-Nix container,
+# even though the might not necessarily make sense directly.
+RUN sed -i \
+	-e "s,@mimetypes@,/etc/lighttpd/mime-types.conf,g" \
+	-e "s,@python@,/usr/local,g" \
+	-e  "s,@site@,/www,g" \
+	-e  "s,@cgibin@,/cgi-bin,g" \
+	/httpd.conf
+
+EXPOSE 80/tcp
+# Note: these are just those environment variables that have a default variable
+# and are optional, the non optional ones *will* need to be set by the user.
+ENV ZAMMAD_URL=https://ticket.z31.it
+ENV ZAMMAD_GROUP=""
+
+HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
+	CMD curl --fail localhost || exit 1
+
+# Reroute stdout to a new file descriptor so that Lighttpd can use it as the
+# access log. See http.conf and here:
+# https://redmine.lighttpd.net/boards/2/topics/8382
+ENTRYPOINT exec 3>&1 && /usr/sbin/lighttpd -Df /httpd.conf

flake.nix

@@ -42,9 +42,9 @@
 
 					lighttpdConfig = pkgs.substituteAll {
 						src = ./sites/angestoepselt/httpd.conf;
-						inherit (pkgs) lighttpd;
 						inherit (packages) site;
 						inherit python;
+						mimetypes = "${pkgs.lighttpd}/share/lighttpd/doc/config/conf.d/mime.conf";
 						cgibin = pkgs.copyPathToStore ./cgi-bin;
 					};
 

sites/angestoepselt/httpd.conf

@@ -5,7 +5,7 @@ server.port = 80
 # See here: https://redmine.lighttpd.net/boards/2/topics/8382
 accesslog.filename = "/dev/fd/3"
 
-include "@lighttpd@/share/lighttpd/doc/config/conf.d/mime.conf"
+include "@mimetypes@"
 
 server.document-root = "@site@"
 index-file.names = ( "index.html" )