keepalived

Set up Keepalived in Ubuntu systems.

Requirements

None

Variables

• keepalived_ip_nonlocal_bind [default: 1]: Allow to bind to IP addresses that are nonlocal, meaning that they're not assigned to a device on the local system

• keepalived_global_defs_notification_email [default: ['[email protected]']]: Email addresses to send alerts to

• keepalived_global_defs_notification_email_from [default: '[email protected]']: From address that will be in header

• keepalived_global_defs_smtp_server [default: '127.0.0.1']: SMTP server IP address

• keepalived_global_defs_smtp_connect_timeout [default: 30]: SMTP server connect timeout in seconds

• keepalived_vrrp_scripts [default: {}]: VRRP script declarations

• keepalived_vrrp_scripts.key: The name of the VRRP script

• keepalived_vrrp_scripts.key.script: The script to run periodically

• keepalived_vrrp_scripts.key.weight: The check weight to adjust the priority (optional)

• keepalived_vrrp_scripts.key.interval: The check interval in seconds (optional)

• keepalived_vrrp_instances [default: {}]: VRRP instance declarations

• keepalived_vrrp_instances.key: The name of the VRRP instance

• keepalived_vrrp_instances.key.interface: Interface bound by VRRP

• keepalived_vrrp_instances.key.state: Start-up default state (MASTER|BACKUP). As soon as the other machine(s) come up, an election will be held and the machine with the highest priority will become MASTER

• keepalived_vrrp_instances.key.priority: For electing MASTER highest priority (0...255) wins

• keepalived_vrrp_instances.key.virtual_router_id: Arbitrary unique number (0...255) used to differentiate multiple instances of VRRPD running on the same NIC (and hence same socket)

• keepalived_vrrp_instances.key.advert_int: The advert interval in seconds (optional)

• keepalived_vrrp_instances.key.smtp_alert: Whether or not to send email notifications during state transitioning (optional)

• keepalived_vrrp_instances.key.authentication: Authentication block

• keepalived_vrrp_instances.key.authentication.auth_type: Simple password or IPSEC AH (PASS|AH)

• keepalived_vrrp_instances.key.authentication.auth_pass: Password string (up to 8 characters)

• keepalived_vrrp_instances.key.virtual_ipaddresses: VRRP IP address block

• keepalived_vrrp_instances.key.track_scripts: Scripts state we monitor

Dependencies

None

Example

---
- hosts: all
  roles:
    - keepalived

HAProxy

keepalived_vrrp_scripts:
  chk_haproxy:
    script: 'killall -0 haproxy'
    weight: 2
    interval: 1

keepalived_vrrp_instances:
  VI_1:
    interface: eth1
    state: MASTER
    priority: 101
    virtual_router_id: 51

    authentication:
      auth_type: PASS
      auth_pass: '4Apr3C*d'

    virtual_ipaddresses:
      - '10.0.0.10/24 dev eth1 label eth1:1'

    track_scripts:
      - chk_haproxy

License

MIT

Author Information

Mischa ter Smitten

Feedback, bug-reports, requests, ...

Are welcome!