Fix data volume permissions at startup

Dockerfile

@@ -2,12 +2,16 @@ FROM node:22-alpine
 
 WORKDIR /app
 
+RUN apk add --no-cache su-exec
+
 COPY package.json package-lock.json ./
 RUN npm ci --omit=dev
 
 COPY --chown=node:node . .
-USER node
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+RUN chmod 755 /usr/local/bin/docker-entrypoint.sh
 
 EXPOSE 3000
 
+ENTRYPOINT ["docker-entrypoint.sh"]
 CMD ["node", "server.js"]

docker-entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+set -eu
+
+mkdir -p /app/data
+chown -R node:node /app/data
+
+exec su-exec node "$@"