Ruby Thin Web Server
Somebody suggested that I try out thin, “A fast and very simple Ruby web server.” So, I thought it might be interesting to test, and a simplification over Rails to demonstrate an small Ruby MVC pattern.
Installing thin seemed straight forward as a gem installation, like
gem install thin |
The initial install didn’t work out of the box because I’d neglected to install the gcc-c++ library. It raised the following errors:
Fetching: eventmachine-1.0.7.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing thin:
ERROR: Failed to build gem native extension.
/usr/bin/ruby extconf.rb
checking for main() in -lssl... no
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for inotify_init() in sys/inotify.h... yes
checking for writev() in sys/uio.h... yes
checking for rb_thread_fd_select()... yes
checking for rb_fdset_t in ruby/intern.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for sys/event.h... no
checking for epoll_create() in sys/epoll.h... yes
checking for clock_gettime()... yes
checking for CLOCK_MONOTONIC_RAW in time.h... yes
checking for CLOCK_MONOTONIC in time.h... yes
creating Makefile
make "DESTDIR="
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -DWITHOUT_SSL -DBUILD_FOR_RUBY -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_TBR -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_INOTIFY_INIT -DHAVE_INOTIFY -DHAVE_WRITEV -DHAVE_WRITEV -DHAVE_RB_THREAD_FD_SELECT -DHAVE_RB_THREAD_FD_SELECT -DHAVE_TYPE_RB_FDSET_T -DHAVE_RB_FDSET_T -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_TIME_NEW -DOS_UNIX -DHAVE_EPOLL_CREATE -DHAVE_EPOLL -DHAVE_CLOCK_GETTIME -DHAVE_CONST_CLOCK_MONOTONIC_RAW -DHAVE_CONST_CLOCK_MONOTONIC -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -mtune=generic -m64 -o ed.o -c ed.cpp
make: g++: Command not found
make: *** [ed.o] Error 127
Gem files will remain installed in /usr/local/share/gems/gems/eventmachine-1.0.7 for inspection.
Results logged to /usr/local/share/gems/gems/eventmachine-1.0.7/ext/gem_make.out |
Naturally, I installed the gcc-c++ library with the yum utility, like this:
yum list gcc-c++ |
It displayed the following log output:
Loaded plugins: langpacks, refresh-packagekit mysql-connectors-community | 2.5 kB 00:00 mysql-tools-community | 2.5 kB 00:00 mysql56-community | 2.5 kB 00:00 pgdg93 | 3.6 kB 00:00 updates/20/x86_64/metalink | 14 kB 00:00 updates | 4.9 kB 00:00 updates/20/x86_64/primary_db | 13 MB 00:04 (1/2): updates/20/x86_64/updateinfo | 1.9 MB 00:02 (2/2): updates/20/x86_64/pkgtags | 1.4 MB 00:00 Resolving Dependencies --> Running transaction check ---> Package gcc-c++.x86_64 0:4.8.3-7.fc20 will be installed --> Processing Dependency: libstdc++-devel = 4.8.3-7.fc20 for package: gcc-c++-4.8.3-7.fc20.x86_64 --> Running transaction check ---> Package libstdc++-devel.x86_64 0:4.8.3-7.fc20 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: gcc-c++ x86_64 4.8.3-7.fc20 updates 7.2 M Installing for dependencies: libstdc++-devel x86_64 4.8.3-7.fc20 updates 1.5 M Transaction Summary ================================================================================ Install 1 Package (+1 Dependent package) Total download size: 8.7 M Installed size: 25 M Downloading packages: (1/2): gcc-c++-4.8.3-7.fc20.x86_64.rpm | 7.2 MB 00:05 (2/2): libstdc++-devel-4.8.3-7.fc20.x86_64.rpm | 1.5 MB 00:01 -------------------------------------------------------------------------------- Total 1.3 MB/s | 8.7 MB 00:06 Running transaction check Running transaction test Transaction test succeeded Running transaction (shutdown inhibited) Installing : libstdc++-devel-4.8.3-7.fc20.x86_64 1/2 Installing : gcc-c++-4.8.3-7.fc20.x86_64 2/2 Verifying : gcc-c++-4.8.3-7.fc20.x86_64 1/2 Verifying : libstdc++-devel-4.8.3-7.fc20.x86_64 2/2 Installed: gcc-c++.x86_64 0:4.8.3-7.fc20 Dependency Installed: libstdc++-devel.x86_64 0:4.8.3-7.fc20 Complete! |
After installing the gcc-c++ libraries, I reran the gem utility to install the thin utility. It created three Ruby Gems: eventmachine-1.0.7, daemons-1.2.2.gem, and thin-1.6.3.gem, as shown:
Building native extensions. This could take a while... Successfully installed eventmachine-1.0.7 Fetching: daemons-1.2.2.gem (100%) Successfully installed daemons-1.2.2 Fetching: thin-1.6.3.gem (100%) Building native extensions. This could take a while... Successfully installed thin-1.6.3 Parsing documentation for daemons-1.2.2 Installing ri documentation for daemons-1.2.2 Parsing documentation for eventmachine-1.0.7 Installing ri documentation for eventmachine-1.0.7 Parsing documentation for thin-1.6.3 Installing ri documentation for thin-1.6.3 Done installing documentation for daemons, eventmachine, thin after 11 seconds 3 gems installed |
Having created the Ruby Gems, I followed the thin instruction on the web site, and created the following Ruby web server:
app = proc do |env| [ 200, # Status code { # Response headers 'Content-Type' => 'text/html', 'Content-Length' => '12', }, ['Hello World!'] # Response body ] end # You can install Rack middlewares # to do some crazy stuff like logging, # filtering, auth or build your own. use Rack::CommonLogger run app |
Then, I tested the Ruby web server with the following command:
thin start -R thin.ru |
It displayed the following test server as the result of localhost:3000 URL:
As always, I hope this helps those who land on this page.
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