feat: add typesense Dockerfile

.typesense/Caddyfile

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+# global options
+{
+	admin off # theres no need for the admin api in railway's environment
+	persist_config off # storage isn't persistent anyway
+	auto_https off # railway handles https for us, this could in some cases cause issues if left enabled
+	# runtime logs
+	log {
+		output discard # theres no need for caddy's runtime logs
+	}
+}
+
+# site block, listens on the $PORT environment variable, automatically assigned by railway
+:{$PORT} {
+	reverse_proxy http://127.0.0.1:8118
+}

.typesense/Dockerfile

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+FROM alpine:latest AS parallel
+
+# install 'parallel' for entrypoint script
+RUN apk add --no-cache parallel
+
+FROM caddy:latest AS caddy
+
+# format caddyfile, image contains caddy binary
+COPY Caddyfile ./
+RUN caddy fmt --overwrite Caddyfile
+
+FROM typesense/typesense:29.0
+
+# copy caddyfile, caddy binary, parallel binary, and scripts from previous layers
+COPY --from=caddy /srv/Caddyfile ./
+COPY --from=caddy /usr/bin/caddy /usr/bin/caddy
+COPY --from=parallel /usr/bin/parallel /usr/bin/parallel
+COPY --chmod=755 scripts/* ./
+
+# run start.sh script
+ENTRYPOINT ["/bin/sh"]
+CMD ["start.sh"]

.typesense/scripts/start.sh

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+#!/bin/sh
+
+# exit as soon as a single command finishes (any status), kill the rest
+parallel --ungroup --halt now,done=1 ::: \
+    "./start_caddy.sh" \
+    "./start_typesense.sh"
+
+# always exit with a failure status
+false

.typesense/scripts/start_caddy.sh

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+#!/bin/sh
+
+# replace process with caddy, redirect stderr to stdout
+exec caddy run --config Caddyfile --adapter caddyfile 2>&1

.typesense/scripts/start_typesense.sh

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+#!/bin/sh
+
+# replace process with server, always use 8118 port internally, caddy will proxy the railway-assigned port, localhost listen
+exec /opt/typesense-server --api-address 127.0.0.1 --api-port 8118