Ruby on rails

Rails arenduskeskond

Installime vajalikud päkitsad railsile

Esimesena mysql server

cd /usr/ports/databases/mysql5-server
make install clean

Seejärel ruby

cd /usr/ports/lang/ruby18
make install clean

Portupgrade mehhanism

pkg_add -r portupgrade

Ning seejärel võime railsi ennast installima asuda

portinstall -PR rubygem-rails

Viimane käsk installib railsi koos kõigi sõltuvustega võti P käseb kasutada binaarseid installereid kui võimalik ja R upgradeb juba installitud sõltuvusi. Samuti küsitakse kasutajalt mingihetk mis tüüpi andmebaasi ta soovib kasutada.

Uue projekti loome käsuga

rails ideenimi

Genereerib kausta ideenimi

seejärel stardime arenduseks vajaliku webrick serveri

cd ideenimi
script/server -d -p 3000
=> Booting WEBrick...
=> Rails application started on http://0.0.0.0:3000
[2008-01-08 18:27:50] INFO  WEBrick 1.3.1
[2008-01-08 18:27:50] INFO  ruby 1.8.6 (2007-09-24) [i386-freebsd7]

võti p 3000 stardib veebiserveri pordile 3000

nüüd peaksime enda projekti nägema aadressil http://localhost:3000

Rails ja Apache mitme projektiga server

Süsteem toimib nii, et Apache suunab vhostide info mongrel serverile, mis siis railsi skripte esile manab.

cd /usr/ports/apache22
make install with_proxy_modules=yes
gem install mongrel
gem install mongrel-cluster

Loome vajalikud skriptid

pane rcrails /etc/init.d vms kausta ja start_mongrel iga railsi script kausta. start_mongreli sees määra USER ja GROUP, kellena see server jooksma peaks.

Meil on kaks eraldi railsis loodud programmi, mis asuvad

/home/rails/progeadmin/
/home/rails/veebiadmin/

/usr/local/etc/rails.conf või muusse faili (muuda vastavalt rcrails skripti) kirjuta näiteks:

RAILS_SERVERS="
/home/rails/progeadmin/
/home/rails/veebiadmin/

Mongrel Cluster seadistus

mongrel_rails cluster::configure -e production \
-p 8000 -N 3 -c /var/www/apps/testapp -a 127.0.0.1 \
--user mongrel --group mongrel

mongrel_rails cluster::configure -e production \
-p 8100 -N 3 -c /var/www/apps/testapp -a 127.0.0.1 \
--user mongrel --group mongrel

See käsk kirjutab konfiguratsiooni faili config/mongrel_cluster.yml.

cat home/progeadmin/rails/config/mongrel_cluster.yml

user: programm
cwd: /home/progeadmin/rails/
port: "8000"
environment: production
group: konkurss
address: 127.0.0.1
pid_file: log/mongrel.pid
servers: 3 

Nende käskude peale käivituvad kummagi railsi kohta kolm mongrel protsessi Esimesel portidele 8001 8002 8003 ja teisel 8101 8102 8103

Mongrel clustri startimiseks tuleb anda käsk

mongrel_rails cluster::start

httpd.conf

Kontrollime, et read oleksid

LoadModule proxy_module libexec/apache22/mod_proxy.so
LoadModule proxy_connect_module libexec/apache22/mod_proxy_connect.so
LoadModule proxy_ftp_module libexec/apache22/mod_proxy_ftp.so
LoadModule proxy_http_module libexec/apache22/mod_proxy_http.so
LoadModule proxy_ajp_module libexec/apache22/mod_proxy_ajp.so
LoadModule proxy_balancer_module libexec/apache22/mod_proxy_balancer.so

Nüüd loome mõlemale progele nende vhostid

<VirtualHost 193.40.0.10:80>
  ServerName progeadmin.katse.ee
  DocumentRoot /home/rails/progeadmin/

  <Directory "/home/rails/progeadmin/">
    Options FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
  </Directory>

  RewriteEngine On


 # Redirect all non-static requests to cluster
 #RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
 RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L]

</VirtualHost>

<VirtualHost 193.40.0.10:80>
 ServerName veebiadmin
 DocumentRoot /home/rails/veebiadmin/

 <Directory "/home/rails/veebiadmin/">
   Options FollowSymLinks
   AllowOverride None
   Order allow,deny
   Allow from all
 </Directory>


 RewriteEngine On

 # Rewrite to trailing slash
 RewriteRule ^/admin$ /admin/ [R,L]

 # test if this is /admin request
 RewriteCond %{REQUEST_URI} ^/admin(/.*)
 # strip off /admin and put result in ENV
 RewriteRule ^/admin(.*) /admin$1 [E=AdminReq:$1]

 RewriteCond /home/rails/admin/public/%{ENV:AdminReq} -f
 # serve static files
 RewriteRule ^/admin/(.*) /home/rails/admin/public/$1 [L]
 # If request is not static, proxy to rails
 RewriteRule ^/(admin/.*)$ balancer://mongrel_cluster2/$1 [P,QSA,L]


</VirtualHost>

Ehitame proxyd

<Proxy balancer://mongrel_cluster2>
   BalancerMember http://127.0.0.1:8001
   BalancerMember http://127.0.0.1:8002
   BalancerMember http://127.0.0.1:8003
</Proxy>

<Proxy balancer://mongrel_cluster>
   BalancerMember http://127.0.0.1:8101
   BalancerMember http://127.0.0.1:8102
   BalancerMember http://127.0.0.1:8103
</Proxy>

ja balaceri

Listen 8000
<VirtualHost 193.40.0.10:8000>
 <Location />
   SetHandler balancer-manager
   Deny from all
   Allow from localhost
 </Location>
</VirtualHost>

Lingid

http://blog.innerewut.de/articles/2006/04/21/scaling-rails-with-apache-2-2-mod_proxy_balancer-and-mongrel