add unsafe-perm flag to build

Author: Dave Conway-Jones

.docker/Dockerfile.alpine

@@ -40,7 +40,7 @@ FROM base AS build
 # Install Build tools
 RUN apk add --no-cache --virtual buildtools build-base linux-headers udev python
 
-RUN npm install --only=production
+RUN npm install --unsafe-perm --no-update-notifier --only=production
 RUN /tmp/remove_native_gpio.sh
 RUN cp -R node_modules prod_node_modules
 

docker-custom/Dockerfile.custom

@@ -36,7 +36,7 @@ FROM base AS build
 # Install Build tools
 RUN apk add --no-cache --virtual buildtools build-base linux-headers udev python
 
-RUN npm install --only=production
+RUN npm install --unsafe-perm --no-update-notifier --only=production
 RUN /tmp/remove_native_gpio.sh
 RUN cp -R node_modules prod_node_modules