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Merge pull request #1565 from aapostoliuk/vrrp-script

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VRRP: Added additional information about scripting.
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Daniil Baturin 2024-11-07 17:38:08 +00:00 committed by GitHub
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docs/configuration/highavailability/index.rst
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@ -308,9 +308,16 @@ execute custom checks in addition to the master router reachability. Transition
scripts are executed when VRRP state changes from master to backup or fault and scripts are executed when VRRP state changes from master to backup or fault and
vice versa and can be used to enable or disable certain services, for example. vice versa and can be used to enable or disable certain services, for example.
.. warning:: It is not recommended to change VRRP configuration inside health-check
and transition scripts.
Health check scripts Health check scripts
^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^
There is the ability to run an arbitrary script at regular intervals according to health-check
parameters. If a script returns 0, it indicates success. If a script returns anything
else, it will indicate that the VRRP instance should enter the FAULT state.
This setup will make the VRRP process execute the This setup will make the VRRP process execute the
``/config/scripts/vrrp-check.sh script`` every 60 seconds, and transition the ``/config/scripts/vrrp-check.sh script`` every 60 seconds, and transition the
group to the fault state if it fails (i.e. exits with non-zero status) three group to the fault state if it fails (i.e. exits with non-zero status) three