Failed linking passenger 5.0.23 native support with Ruby 2.2.4

Question

I am trying to make a clean APT install of Passenger latest stable 5.0.23 with Ruby 2.2.4 on Ubuntu 14.0.4 but I keep getting [passenger_native_support.so] will not be used (can't compile or download) . I've successfully compiled by hand the actual .so :

 ➜  ~  passenger-config build-native-support 
 [passenger_native_support.so] trying to compile for the current Ruby interpreter...
     (set PASSENGER_COMPILE_NATIVE_SUPPORT_BINARY=0 to disable)
     Compilation succesful. The logs are here:
     /tmp/passenger_native_support-1h838u1.log
 [passenger_native_support.so] successfully loaded.
➜  ~  cat /tmp/passenger_native_support-1h838u1.log
# mkdir -p /root/.passenger/native_support/5.0.23/ruby-2.2.4-x86_64-linux
# cd /root/.passenger/native_support/5.0.23/ruby-2.2.4-x86_64-linux
# /usr/bin/ruby2.2 /usr/share/passenger/ruby_extension_source/extconf.rb
checking for alloca.h... yes
checking for ruby/version.h... yes
checking for ruby/io.h... yes
checking for ruby/thread.h... yes
checking for ruby_version... no
checking for rb_thread_io_blocking_region() in ruby/io.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
creating Makefile
# make
compiling /usr/share/passenger/ruby_extension_source/passenger_native_support.c
linking shared-object passenger_native_support.so

But, it's still failing in Nginx:

[ 2016-01-19 14:23:45.4123 1055/7f247600d7c0 age/Wat/WatchdogMain.cpp:1276 ]: Starting Passenger watchdog...
[ 2016-01-19 14:23:45.4406 1070/7f106e3067c0 age/Cor/CoreMain.cpp:957 ]: Starting Passenger core...
[ 2016-01-19 14:23:45.4407 1070/7f106e3067c0 age/Cor/CoreMain.cpp:234 ]: Passenger core running in multi-application mode.
[ 2016-01-19 14:23:45.4423 1070/7f106e3067c0 age/Cor/CoreMain.cpp:707 ]: Passenger core online, PID 1070
[ 2016-01-19 14:23:45.4475 1078/7f1c642e37c0 age/Ust/UstRouterMain.cpp:504 ]: Starting Passenger UstRouter...
[ 2016-01-19 14:23:45.4480 1078/7f1c642e37c0 age/Ust/UstRouterMain.cpp:317 ]: Passenger UstRouter online, PID 1078
App 1586 stdout: 
App 1586 stderr:  [passenger_native_support.so] trying to compile for the current Ruby interpreter...
App 1586 stderr:      (set PASSENGER_COMPILE_NATIVE_SUPPORT_BINARY=0 to disable)
App 1586 stderr:  [passenger_native_support.so] finding downloads for the current Ruby interpreter...
App 1586 stderr:      (set PASSENGER_DOWNLOAD_NATIVE_SUPPORT_BINARY=0 to disable)
App 1586 stderr:      Could not download https://oss-binaries.phusionpassenger.com/binaries/passenger/by_release/5.0.23/rubyext-ruby-2.2.4-x86_64-linux.tar.gz: The requested URL returned error: 404 Not Found
App 1586 stderr:      Trying next mirror...
App 1586 stderr:      Could not download https://s3.amazonaws.com/phusion-passenger/binaries/passenger/by_release/5.0.23/rubyext-ruby-2.2.4-x86_64-linux.tar.gz: The requested URL returned error: 403 Forbidden
App 1586 stderr:  [passenger_native_support.so] will not be used (can't compile or download) 
App 1586 stderr:   --> Passenger will still operate normally.
App 1607 stdout: 

Neither tarball archives exist on Passenger servers or S3.

The actual Rails app works fine but I don't mind spending time finding the root causes of this warning. Any idea about where to look next?

Answer 1

I've managed to find a workaround!

The issues was the .so wasn't accessible to the nobody user which was running Passenger. I've troubled compiling anything with the nobody user, so I've ended up just copying the .so from the root folder to /usr/lib/ :

cp /root/.passenger/native_support/5.0.23/ruby-2.2.4-x86_64-linux/passenger_native_support.so /usr/lib/x86_64-linux-gnu/ruby/2.2.0/passenger_native_support.so

I don't know if it's the cleanest thing ever but it's working.