all three containers works with alpine and user are configured

srcs/requirements/nginx/Dockerfile

@@ -28,6 +28,10 @@
 	COPY ./conf/nginx.conf.alpine /etc/nginx/nginx.conf
 	COPY ./conf/inception_nginx.conf /etc/nginx/http.d/
 
+	# create user www-data and assign it to group www-data
+	RUN adduser -S www-data && \
+		adduser www-data www-data
+
 # common -----------------------------------------------------
 
 # personalized index.html

srcs/requirements/nginx/conf/nginx.conf.alpine

@@ -1,6 +1,12 @@
+# inception modifications :
+#
+# user :
+#   < user www-data
+#   > user nginx
+
 # /etc/nginx/nginx.conf
 
-user nginx;
+user www-data;
 
 # Set number of worker processes automatically based on number of CPU cores.
 worker_processes auto;