Future-proof Decidim passenger + nginx compilation

lxc-apps/decidim/image

@@ -21,11 +21,12 @@ RUN EOF
     adduser -S -u 8080 -h /srv/decidim-app -s /sbin/nologin -G decidim -g decidim decidim
 
     # Compile nginx
-    # taken from passenger-install-nginx-module
+    # Minimized version of /usr/local/bin/passenger-install-nginx-module
+    NGINX_VERSION=$(grep '  PREFERRED_NGINX_VERSION' /usr/local/lib/ruby/gems/2.6.0/gems/passenger-*/src/ruby_supportlib/phusion_passenger.rb | grep -Eo '([0-9\.]+)')
     cd /tmp
-    wget https://nginx.org/download/nginx-1.17.3.tar.gz
-    tar xf nginx-1.17.3.tar.gz
-    cd nginx-1.17.3
+    wget https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz
+    tar xf nginx-*.tar.gz
+    cd nginx-*
     ./configure \
         --prefix=/var/lib/nginx \
         --sbin-path=/usr/sbin/nginx \
@@ -43,7 +44,7 @@ RUN EOF
         --with-http_stub_status_module \
         --with-http_addition_module \
         --with-cc-opt=-Wno-error \
-        --add-module=/usr/local/lib/ruby/gems/2.6.0/gems/passenger-6.0.4/src/nginx_module
+        --add-module=/usr/local/lib/ruby/gems/2.6.0/gems/passenger-*/src/nginx_module
     make -j $(getconf _NPROCESSORS_ONLN)
     make install
     rm -f /etc/nginx/*.default