add back package.json from source. Add back docker build files

.dockerignore

@@ -0,0 +1,6 @@
+/files/
+/source/voyager/docs/
+**/dist/
+**/node_modules/
+**/.git/
+*.tar.gz

Dockerfile

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+
+FROM node:16-alpine as build
+RUN mkdir -p /app/dist /app/source
+WORKDIR /app
+
+COPY source/server/package*.json /app/source/server/
+RUN (cd /app/source/server && npm ci)
+
+COPY source/voyager/package*.json /app/source/voyager/
+RUN (cd /app/source/voyager && npm ci)
+
+COPY source/ui/package*.json /app/source/ui/
+RUN (cd /app/source/ui && npm ci)
+
+COPY ./package*.json /app/
+RUN npm ci
+
+
+COPY source/server /app/source/server
+RUN npm run build-server
+# outputs files in /app/source/server/dist
+
+COPY source/voyager /app/source/voyager
+RUN npm run build-voyager
+# files are automatically picked up by build-ui
+
+COPY source/ui /app/source/ui
+RUN npm run build-ui
+# outputs files in /app/dist
+
+
+
+################### 
+# The actual container to be published
+###################
+FROM node:16-alpine
+LABEL org.opencontainers.image.source=https://github.com/Holusion/e-thesaurus
+LABEL org.opencontainers.image.description="eCorpus base image"
+LABEL org.opencontainers.image.licenses=Apache
+
+ARG PORT=8000
+
+ENV PUBLIC=false
+ENV PORT=${PORT}
+ENV NODE_ENV=production
+
+WORKDIR /app
+COPY source/server/package*.json /app/
+#might occasionally fail if the prebuilt version can't be downloaded, 
+# because it can't rebuild it locally
+RUN npm ci --omit=dev
+
+COPY ./source/server/migrations /app/migrations
+COPY ./source/server/templates /app/templates
+
+
+COPY --from=build /app/dist /app/dist
+COPY --from=build /app/source/server/dist/server /app/server
+
+VOLUME [ "/app/files" ]
+EXPOSE ${PORT}
+
+CMD node server/index.js