Posts tagged debian

Rails Note #13: RubyonRails + Oracle on Linux (i386 / x64)

Dec 11th

Posted by rupert in debian

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In summary, install Oracle Instant Client and try to run sqlplus. If sqlplus connects to the oracle sid then go ahead and install the rails adapters for oracle. What is important to note here, is to install the oracle-instantclient for the architecture of your machine.. I have tested this on Debian Lenny (i386) and CentOS5 (x64)

1. Download from http://www.oracle.com/technology/software/tech/oci/instantclient/

a. oracle-instantclient-basic-10.2.0.4-1.i386
b. oracle-instantclient-devel-10.2.0.4-1.i386
c. oracle-instantclient-sqlplus-10.2.0.4-1.i386

2. Unzip everything to /opt/oracle/instantclient . You should have something like the ff:

[root@csapp1 instantclient]# ls -la
total 102704
drwxr-xr-x 3 root root     4096 Dec 10 21:54 .
drwxr-xr-x 3 root root     4096 Dec 10 22:03 ..
-rw-r--r-- 1 root root      228 Dec 10 21:52 BASIC_README
-r--r--r-- 1 root root  1609607 Dec 10 21:52 classes12.jar
-rwxr-xr-x 1 root root    67542 Dec 10 21:52 genezi
-r--r--r-- 1 root root     1525 Dec 10 21:52 glogin.sql
lrwxrwxrwx 1 root root       17 Dec 10 21:54 libclntsh.so -> libclntsh.so.10.1
-rwxr-xr-x 1 root root 21038613 Dec 10 21:52 libclntsh.so.10.1
-r-xr-xr-x 1 root root  3796601 Dec 10 21:52 libnnz10.so
-rwxr-xr-x 1 root root  1664116 Dec 10 21:52 libocci.so.10.1
-rwxr-xr-x 1 root root 72674185 Dec 10 21:52 libociei.so
-r-xr-xr-x 1 root root   138033 Dec 10 21:52 libocijdbc10.so
-r-xr-xr-x 1 root root  1435561 Dec 10 21:52 libsqlplusic.so
-r-xr-xr-x 1 root root   997409 Dec 10 21:52 libsqlplus.so
-r--r--r-- 1 root root  1555682 Dec 10 21:52 ojdbc14.jar
drwxr-xr-x 4 root root     4096 Dec 10 21:52 sdk
-r-xr-xr-x 1 root root     7773 Dec 10 21:52 sqlplus
-rw-r--r-- 1 root root      232 Dec 10 21:52 SQLPLUS_README
-rw-r--r-- 1 root root      516 Dec 10 21:53 tnsnames.ora
[root@csapp1 instantclient]#

3. Make a symbolic link for libclntsh.so.10.1 as shown above.

4. Create the Oracle Environment variables

export ORACLE_HOME=/opt/oracle/instantclient
export TNS_ADMIN=$ORACLE_HOME
export LD_LIBRARY_PATH=$ORACLE_HOME:$LD_LIBRARY_PATH
export DYLD_LIBRARY_PATH=$ORACLE_HOME
export PATH=$PATH:$ORACLE_HOME

5. At this point, you should have oracle-instantclient properly installed. You can test by running sqlplus.

[root@csapp1 instantclient]# sqlplus
 
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Dec 11 11:47:40 2008
 
Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.

NOTE: Sometimes you will get a SEGMENTATION FAULT. If so, try to open a new shell with the environment variables loaded and do an sqlplus in a directory which is not /opt/oracle/instantclient.

6. Install the oracle adapter for rails

7. gem install ruby-oci8

8. gem install oracle_enhanced-adapter –source=”http://gems.rubyonrails.org/”

activerecord-oracle-adapter (1.0.0.9250)
activerecord-oracle_enhanced-adapter (1.1.8)

NOTE: Try to look for the latest gems, the source above is at the time of this writing so it might change.

9. Test using irb

[root@csapp1 instantclient]# irb
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'oci8'
=> true
irb(main):003:0>
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Rails Note #4: Deploying a Rails Application in a Subdirectory

Nov 7th

Posted by rupert in ruby on rails

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There are many ways to deploy RoR applications. I have googled all over the place and so far the easiest setup that I could find that would suit my needs (existing Apache2 + ColdFusion + TileCache) would be to use

1. Apache PROXY
2. Mongrel

CentOS Installation Instructions

1. Make sure Apache has mod_proxy

 ./configure --prefix=/usr/local/apache2 --enable-so --enable-rewrite --with-mpm=prefork --enable-proxy --enable-proxy-connect --enable-proxy-ftp --enable-proxy-httpd --enable-proxy-ajp --enable-proxy-balancer --enable-cgi

1. Apache Proxy

<VirtualHost *:80>
    ServerName test
    ProxyRequests Off 
        <Proxy *>
            Order deny,allow
            Allow from all
        </Proxy>
    ProxyPass /localdumplings http://localhost:3000/localdumplings
    ProxyPassReverse /localdumplings http://localhost:3000/localdumplings
    #ProxyPass /localdumplings/ http://localhost:3000/
    #ProxyPassReverse /localdumplings/ http://localhost:3000/
</VirtualHost>

2. Starting mongrel on a subdir
mongrel_rails start –prefix=/localdumplings

Debian Installation Instructions

1. Install libapache2-mod-proxy-html is easier…

sudo apt-get install libapache2-mod-proxy-html

2. Enable modules to load in apache2

sudo a2enmod proxy
sudo a2enmod proxy_balancer
sudo a2enmod proxy_http
sudo a2enmod rewrite
sudo /etc/init.d/apache2 stop
sudo /etc/init.d/apache2 start

3. Add the application in /etc/apache2/mods-available/proxy.conf

<IfModule mod_proxy.c>
        #turning ProxyRequests on and allowing proxying from all may allow
        #spammers to use your proxy to send email.
 
        ProxyRequests Off 
 
        <Proxy *>
                AddDefaultCharset off 
                Order deny,allow
                Allow from all
                #Allow from .example.com
        </Proxy>
 
        # Enable/disable the handling of HTTP/1.1 "Via:" headers.
        # ("Full" adds the server version; "Block" removes all outgoing Via: headers)
        # Set to one of: Off | On | Full | Block
        ProxyPass /localdumplings http://localhost:3000/localdumplings
        ProxyPassReverse /localdumplings http://localhost:3000/localdumplings
 
        ProxyVia On
</IfModule>

Starting a mongrel_rails on boot
Slicehost ( http://articles.slicehost.com/2007/9/21/debian-etch-apache-vhosts-rails-and-mongrels ) has a very good article regarding this.

mongrel_rails start -d -e production -p 8001 -P log/mongrel8001.pid -l log/mongrel.log
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Chinese Debian Repository

Nov 7th

Posted by rupert in Uncategorized

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Its been a long time I have not updated debian. Now, debian.cn99.com is not working. However, there is a new mirror in town.. www.anheng.com.cn.

http://www.debian.org/mirror/list

picture-1

Post Install Apache2.x, ColdFusion 8

May 28th

Posted by rupert in coldfusion

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After binding Apache2.x and ColdFusion 8, I find it very useful to follow the post-install instructions below:

1. Copying ColdFusion Admin directory to /wwwroot (webroot)

# ln -s /var/www /wwwroot
# cp -Rf /opt/coldfusion8/wwwroot/CFIDE /wwwroot/
# rm /wwwroot/index.html
# cd /wwwroot
# ln -s CFIDE cfide

2. Adding index.cfm to DirectoryIndex.

# vim /etc/apache2/mods-available/dir.conf
DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm index.cfm

3. Restart apache

/etc/init.d/apache2 stop 
/etc/init.d/apache2 start

4. Browse Admin page for the first time

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Installing Postgresql, Postgis, pgRouting on Debian

May 25th

Posted by rupert in debian

Operating System: Debian sid

Versions:

  • postgres 8.3.1
  • postgis 1.3.3
  • pgRouting1.02

1. Install base system and ssh

#vi /etc/apt/sources.list to include
deb http://debian.cn99.com/debian etch main
deb-src http://debian.cn99.com/debian etch main
#apt-get update
#apt-get upgrade libc6

2. Install the required packages for postgres8.3 and postgis1.3.3

#apt-get install sudo nmap telnet
#apt-get install python2.5 python2.5-dev python-setuptools
#apt-get install g++
#apt-get install build-essential cmake ibboost-graph-dev
#apt-get install libreadline5 libreadline5-dev
#apt-get install zlib-bin zlib1g-dev
#apt-get install libkrb5-dev
#apt-get install libcurl3
#apt-get install libssl-dev
#apt-get install postgresql-8.3
#apt-get install postgresql-8.3-postgis
#apt-get install postgresql-server-dev-8.3

3. Installing pgRouting

# tar -zxvf pgRouting-1.02.tgz
# cmake .
# make 
# make install
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