keepalived telepítése

• /etc/sysctl.conf-ba:

.. TODO: Indent lines, set language: Example .. code-block:: python net.ipv4.ip_nonlocal_bind=1

• sysctl -w net.ipv4.ip_nonlocal_bind=1

• apt-get install keepalived

• /etc/keepalived/keepalived.conf-ba:

.. TODO: Indent lines, set language: Example .. code-block:: python

Settings for notifications

global_defs {

notification_email {

your@emailaddress.com # Email address for notifications

}

notification_email_from loadb01@domain.ext # The from address for the notifications

smtp_server 127.0.0.1 # You can specifiy your own smtp server here

smtp_connect_timeout 15

}

Define the script used to check if haproxy is still working

#vrrp_script chk_haproxy {

script "killall -0 haproxy"

interval 2

weight 2

#}

Configuation for the virtual interface

vrrp_instance VI_1 { interface eth0 state MASTER # set this to BACKUP on the other machine priority 101 # set this to 100 on the other machine virtual_router_id 51

smtp_alert # Activate email notifications

authentication {
    auth_type AH
    auth_pass myPassw0rd      # Set this to some secret phrase
}

# The virtual ip address shared between the two loadbalancers
virtual_ipaddress {
    192.168.0.200
}

# Use the script above to check if we should fail over

track_script {

chk_haproxy

}

}

• másodlagos szerveren ugyanez, az alábbi módosításokkal

.. TODO: Indent lines, set language: Example .. code-block:: python state BACKUP priority 100

• /etc/init.d/keepalived start