Revision as of 21:13, 22 August 2015

Install

Sample for Debian 8:

Default installation
- Choose package Web server
- Choose package SSh server

Packages

MySQL

apt-get install mysql-server-5.5

Perl Core

core modules

apt-get install libnet-snmp-perl libxml-simple-perl libmail-sendmail-perl

libnet-whois-raw-perl

for monitoring purposes:

apt-get install nagios-plugins-standard

other

 apt-get install libdatetime-perl

Apache Perl CGI

apt-get install libapache2-mod-fcgid libcgi-fast-perl 
apt-get install libcgi-pm-perl libcgi-session-perl 
apt-get install libfcgi-perl libfcgi0ldbl

Enable CGI

a2enmod cgi

Apache additional

apt-get install libnet-snmp-perl libxml-simple-perl

SUDO

Sudo is required to run commands from apache

apt-get install sudo

visudo -f /etc/sudoers

www-data ALL=NOPASSWD: /sbin/ipvsadm
www-data ALL=NOPASSWD: /usr/bin/nmap
www-data ALL=NOPASSWD: /var/wwwl/mylvs/repl.sh
www-data ALL=NOPASSWD: /usr/local/nagios/libexec/check_nrpe
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackup.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackupcomment.sh
www-data ALL=NOPASSWD: /usr/bin/mysqldump
www-data ALL=NOPASSWD: /usr/bin/mysql
www-data ALL=NOPASSWD: /bin/echo
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkbackup.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/mkrestore.sh
www-data ALL=NOPASSWD: /var/www/mylvs/scripts/reboot.sh

Note: The above commands represents all possible myLVS functions even if the scripts are not setup at this time.

Permissions

=> make me look nice Make sure to have this:

root@mylvs01:/var/www/mylvs# ls -all
total 124
drwxr-xr-x 6 www-data root  4096 Aug 22 14:14 .
drwxr-xr-x 4 root     root  4096 Jun 12 14:48 ..
drwxr-xr-x 2 www-data root  4096 Aug 22 15:27 backup
-rw-r--r-- 1 www-data root   229 Feb  9  2015 LEGAL
-rwxr-xr-x 1 root     demo  3828 Aug 18 13:25 mylvsinit.pl
-rwxr-xr-x 1 root     demo 92370 Aug 18 13:30 mylvsmon.pl
drwxr-xr-x 2 www-data root  4096 Aug 22 14:59 scripts
drwxr-xr-x 4 www-data root  4096 Feb  9  2015 ws
drwxr-xr-x 4 www-data root  4096 Aug 22 14:10 wwwroot
root@mylvs01:/var/www/mylvs#

Please run the following to set permissions for www-data:

root@mylvs01:# chown www-data /var/www/mylvs -R

Main configuration

SQL related settings

Element	Attribute	Description
SQLServer	Address	SQL Server address
SQLServer	Database	Database name
SQLServer	User	Username
SQLServer	Password	Plain password
SQLServerBackup	Address	SQL Backup Server address, only used within an HA environment.
SQLServerBackup	Database	(HA) Backup Database name
SQLServerBackup	User	(HA) Backup Username
SQLServerBackup	Password	(HA) Backup Plain password
SQLServerBackup	ReplCommand	Command to be used when changes occur
SQLConfigBackup	Path	Path to the helper scripts
SQLConfigBackup	ResoreApp	Name of the script to restore the sql data
SQLConfigBackup	BackupApp	Name of the script to backup the sql data

LVS

Element	Attribute	Description
LVS	Command	Command path and name of ipvsadm
Operator	Mailserver	Command path and name of ipvsadm
Operator	Mailfrom	Command path and name of ipvsadm
Operator	MailTo	Command path and name of ipvsadm
Operator	MailCC	Command path and name of ipvsadm
Operator	MailBCC	Command path and name of ipvsadm
Maintenance	FileAge	Command path and name of ipvsadm
Maintenance	SQLAge	Command path and name of ipvsadm

HTTP Related Settings

Element	Attribute	Description
ShowAmount	ActiveWarning	Command path and name of ipvsadm
ShowAmount	InActiveWarning	Command path and name of ipvsadm
ShowAmount	HTTP_ERR	Command path and name of ipvsadm
ShowAmount	HTTP_WARN	Command path and name of ipvsadm
ShowAmount	MaxConCount	Command path and name of ipvsadm
Operation	WebSimulate	Command path and name of ipvsadm
Operation	MonSimulate	Command path and name of ipvsadm
Information	host	Command path and name of ipvsadm
Information	nmap	Command path and name of ipvsadm
Modules	Path	Command path and name of ipvsadm

root@mylvs01:/# cat /etc/mylvs/mylvs.conf.xml
<?xml version="1.0"?>
<CONFIG>
  <SQLServer Address="127.0.0.1" Database="mylvs" User="mylvsuser" Password="demo" />
  <SQLServerBackup Enabled="0" Address="" Database="" User="" Password="" ReplCommand="no-sample-available-yet" />
  <SQLConfigBackup Path="/var/www/mylvs/backup/" RestoreApp="/var/www/mylvs/scripts/mkrestore.sh" BackupApp="/var/www/mylvs/scripts/mkbackup.sh"/>
  <LVS Command="/usr/bin/sudo /sbin/ipvsadm"  />
  <Operator Mailserver="mail.mylvs.com" Mailfrom="lvsmon@mylvs.com" MailTo="postmaster@mylvs.com" MailCC="anybody@domain.com" MailBCC=""/>
  <Maintenance FileAge="5" SQLAge="5"/>
  <ShowAmount ActiveWarning="200" InActiveWarning="2000" HTTP_ERR="120" HTTP_WARN="80" MaxConCount="1000"/>
  <Operation WebSimulate="0" MonSimulate="0"/>
  <Information host="/usr/bin/sudo /usr/bin/host" nmap="/usr/bin/sudo /usr/bin/nmap -sS -O -v" />
  <Modules Path="/usr/local/lvs/wwwroot/modules/"/>
  <StatusView SupressedAddress=""/>
  <View HTMLLVSOutput="0"/>
  <Log Name="mylvslog.log" Path="/var/log/mylvs/" gzip="/bin/gzip" Days="24"/>
  <Logo Path="/images/Linux_Logo.gif" />
</CONFIG>

@@ Line 140: / Line 140: @@
 |-
 | Operator || MailBCC || Command path and name of ipvsadm
+|-
+| Maintenance || FileAge || Command path and name of ipvsadm
+|-
+| Maintenance || SQLAge || Command path and name of ipvsadm
+|-
 |}
@@ Line 191: / Line 196: @@
     <!-- General mailing information if not given somewhere else used by the lvs monitor!-->
     <Operator Mailserver="mail.mylvs.com" Mailfrom="lvsmon@mylvs.com" MailTo="postmaster@mylvs.com" MailCC="anybody@domain.com" MailBCC=""/>
+   <!-- Daily operations!-->
+   <Maintenance FileAge="5" SQLAge="5"/>
     <!-- Color set which is used within the webinterface!-->
     <ShowAmount ActiveWarning="200" InActiveWarning="2000" HTTP_ERR="120" HTTP_WARN="80" MaxConCount="1000"/>
@@ Line 199: / Line 206: @@
     <!-- Web styles/moudules!-->
     <Modules Path="/usr/local/lvs/wwwroot/modules/"/>
-   <!-- Daily operations!-->
-   <Maintenance FileAge="5" SQLAge="5"/>
     <!-- Exlude addresses from the connection view!-->
     <StatusView SupressedAddress=""/>

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