Update Dockerfile

Author: RICHARD-Quentin

app/Dockerfile

@@ -23,6 +23,13 @@ RUN apk update && apk --no-cache upgrade && apk add --no-cache \
   tcpdump
 
 COPY . .
+COPY ../package.json /tmp/root-package.json
+COPY ./package.json /tmp/app-package.json
+
+# Merge package.json files
+RUN jq -s '.[0] * .[1]' /tmp/root-package.json /tmp/app-package.json > /tmp/merged-package.json
+
+COPY /tmp/merged-package.json /usr/src/app/package.json
 
 RUN yarn install \
   --prefer-offline \