Update dockerfile

Dockerfile

@@ -0,0 +1,15 @@
+FROM node:14-alpine AS builder
+MAINTAINER Thomas Ruoff <thomasruoff@gmail.com>
+
+RUN apk add --no-cache texlive texmf-dist
+
+USER 1000
+
+COPY --chown=1000:1000 . /home/node
+
+WORKDIR /home/node
+RUN npm ci && npm run build
+
+EXPOSE 3000
+
+CMD npm run start