frontend/Dockerfile

@@ -1,18 +1,20 @@
 FROM git.webdeploy.it/webdeploy/yarn AS build
 
 WORKDIR /usr
+COPY .yarnrc.yml ./
 COPY package.json ./
-COPY package-lock.json ./
-RUN npm ci
+COPY yarn.lock ./
+RUN yarn install --immutable
 COPY . ./
 RUN yarn build
 
 FROM git.webdeploy.it/webdeploy/yarn
 
 WORKDIR /app
+COPY .yarnrc.yml ./
 COPY package.json ./
-COPY package-lock.json ./
-RUN npm ci
+COPY yarn.lock ./
+RUN yarn install --immutable
 COPY --from=build /usr/build /app
 
 EXPOSE 8000