Nextcloud migration:: add security tips + reduce size (#307)

* Add security tips
* Don't rebuild on start
* Build a full bundle with rollup, then minimize image size

tdrive/docker/tdrive-nextcloud-migration/Dockerfile

@@ -1,10 +1,12 @@
 # Use an official Node.js runtime as the base image
 FROM node:bullseye
 
+run apt update && apt -y dist-upgrade
+RUN apt install dirmngr
+
 RUN echo "deb http://ppa.launchpad.net/nextcloud-devs/client/ubuntu zesty main" >> /etc/apt/sources.list.d/nextcloud-client.list
 RUN echo "deb-src http://ppa.launchpad.net/nextcloud-devs/client/ubuntu zesty main" >> /etc/apt/sources.list.d/nextcloud-client.list
 
-RUN apt install dirmngr
 RUN apt-key adv --recv-key --keyserver keyserver.ubuntu.com AD3DD469
 
 RUN apt update
@@ -13,6 +15,8 @@ RUN apt install --assume-yes nextcloud-desktop-cmd
 
 RUN apt install ldap-utils
 
+RUN apt autoremove && apt clean && rm -rf /var/lib/apt/lists/*
+
 # Set the working directory inside the container
 WORKDIR /usr/src/app
 
@@ -20,8 +24,12 @@ WORKDIR /usr/src/app
 COPY backend/utils/nextcloud-migration/src/** ./src/
 COPY backend/utils/nextcloud-migration/.nvmrc ./
 COPY backend/utils/nextcloud-migration/*.json ./
+COPY backend/utils/nextcloud-migration/rollup.config.js ./
 
-RUN npm i && npm run build
+RUN npm i && npm run build && npm cache clean --force && rm -rf node_modules
+
+# Don't rebuild on start
+RUN perl -i -ne 'print unless/prestart/' package.json
 
 # Run the Node.js application
 CMD ["npm", "run", "start"]