Create explicit docker stage for app build

Signed-off-by: Jeremy Ho <[email protected]>

Dockerfile

@@ -1,6 +1,25 @@
 ARG APP_ROOT=/opt/app-root/src
 ARG BASE_IMAGE=docker.io/node:20.9.0-alpine
 
+#
+# Build the app
+#
+FROM ${BASE_IMAGE} as app
+
+ARG APP_ROOT
+ENV NO_UPDATE_NOTIFIER=true
+
+# NPM Permission Fix
+RUN mkdir -p /.npm
+RUN chown -R 1001:0 /.npm
+
+# Build App
+COPY app ${APP_ROOT}
+RUN chown -R 1001:0 ${APP_ROOT}
+USER 1001
+WORKDIR ${APP_ROOT}
+RUN npm ci && npm run build
+
 #
 # Build the frontend
 #
@@ -34,15 +53,17 @@ RUN mkdir -p /.npm
 RUN chown -R 1001:0 /.npm
 
 # Install File Structure
+COPY --from=app ${APP_ROOT}/sbin ${APP_ROOT}/sbin
 COPY --from=frontend ${APP_ROOT}/dist ${APP_ROOT}/dist
 COPY .git ${APP_ROOT}/.git
-COPY app ${APP_ROOT}
+COPY app/config ${APP_ROOT}/config
+COPY app/package.json app/package-lock.json ${APP_ROOT}
 WORKDIR ${APP_ROOT}
 
 # Install Application
 RUN chown -R 1001:0 ${APP_ROOT}
 USER 1001
-RUN npm ci --omit=dev && npm run build
+RUN npm ci --omit=dev
 
 EXPOSE ${APP_PORT}
 CMD ["node", "./sbin/bin/www"]