Enable PHP profiling for ratings service (#43)

.env

@@ -1,3 +1,3 @@
 # environment file for docker-compose
 REPO=robotshop
-TAG=0.5.1
+TAG=0.5.2

ratings/Dockerfile

@@ -8,10 +8,13 @@ RUN composer install
 #
 # Build the app
 #
-FROM php:7.3-apache
+FROM php:7.4-apache
 
 RUN docker-php-ext-install pdo_mysql
 
+# Enable AutoProfile for PHP which is currently opt-in beta
+RUN echo "instana.enable_auto_profile=1" > "/usr/local/etc/php/conf.d/zzz-instana-extras.ini"
+
 # relax permissions on status
 COPY status.conf /etc/apache2/mods-available/status.conf
 # Enable Apache mod_rewrite and status