inventaire service: use a custom entrypoint script

to initialize the local config from env variables

inventaire/Dockerfile.inventaire

@@ -0,0 +1,39 @@
+FROM node:20-slim
+
+RUN apt-get update \
+  && apt-get install -y curl git graphicsmagick inotify-tools jq \
+  && apt-get clean && rm -rf /var/lib/apt/lists/* \
+  && mkdir -p /opt/inventaire \
+  && chown -R 1000:1000 /opt
+
+# Default to the same user as the host (override from command line if needed)
+# Known benefits:
+# - allows to handle leveldb with level-party from both the host and container at the same time
+USER 1000:1000
+
+WORKDIR /opt/inventaire
+
+# - Create the client folder to prevent the server postinstall to run `npm run install-client` as it does it with the wrong workdir and env
+# - Create the public/sitemaps folder to prevent the client postinstall to run `npm run generate-sitemaps` (which needs to be updated to support non-inventaire.io instances)
+RUN git clone http://github.com/inventaire/inventaire --depth 1 . \
+  && mkdir -p /opt/inventaire/client \
+  && npm ci --omit=dev \
+  && npm run build \
+  && git clone https://github.com/inventaire/inventaire-client.git ./client --branch docker --depth 1 \
+  && mkdir -p /opt/inventaire/client/public/sitemaps
+
+WORKDIR /opt/inventaire/client
+
+# Include dev dependencies (webpack, svelte-checks) at first to be able to build during the postinstall script
+RUN npm ci \
+  && rm -rf node_modules \
+  && npm ci --omit=dev --ignore-scripts \
+  && npm cache clean --force
+
+WORKDIR /opt/inventaire
+
+COPY docker-entrypoint.sh docker-entrypoint.sh
+
+# Avoid using npm script to start the server
+# See https://adambrodziak.pl/dockerfile-good-practices-for-node-and-npm#heading-use-node-not-npm-to-start-the-server
+ENTRYPOINT [ "./docker-entrypoint.sh" ]