update docker file

Author: freethenation

Dockerfile

@@ -1,15 +1,17 @@
 # Build Stage
-FROM node:10.10.0 AS build-stage
+FROM node:16.13.0 AS build-stage
 
 LABEL app="build-PROJECT_NAME"
 
-ADD . /opt/PROJECT_NAME
+COPY package.json package-lock.json /opt/PROJECT_NAME/
 WORKDIR /opt/PROJECT_NAME
+RUN npm install --unsafe-perm=true
 
-RUN npm install --unsafe-perm=true && npm run build
+ADD . /opt/PROJECT_NAME
+RUN npm run build
 
 # Final Stage
-FROM node:10.10.0
+FROM node:16.13.0
 
 #ARG GIT_COMMIT
 LABEL GIT_COMMIT=$GIT_COMMIT