update Dockerfile

Dockerfile

@@ -1,10 +1,19 @@
-FROM node:16 as build
+FROM node:18.17 as build
+
+# Grab needed environment variables from .env.example
+ENV REACT_APP_ENV=production
+ENV NODE_OPTIONS=--openssl-legacy-provider
 
 WORKDIR /app
 
 COPY package.json yarn.lock ./
-COPY ./src/logic/contracts/artifacts/*.json ./src/logic/contracts/artifacts/
-RUN yarn install --frozen-lockfile --network-concurrency 1
+# Due to some dependencies yarn may randomly throw an error about invalid cache
+# This approach is taken from https://github.com/yarnpkg/yarn/issues/7212#issuecomment-506155894 to fix the issue
+# Another approach is to install with flag --network-concurrency 1, but this will make the installation pretty slow (default value is 8)
+RUN mkdir .yarncache
+RUN yarn install --cache-folder ./.yarncache --frozen-lockfile
+RUN rm -rf .yarncache
+RUN yarn cache clean
 
 COPY . .
 RUN yarn build