How To enable KeepAlived

Question

I have compiled and configured keepalived on my raspberry but it won't start.

When I try systemctl enable keepalived I got error

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root@haproxy:/etc/systemd/system# /etc/init.d/keepalived status
● keepalived.service - Keepalive Daemon (LVS and VRRP)
   Loaded: loaded (/lib/systemd/system/keepalived.service; enabled; vendor preset: enabled)
   Active: inactive (dead)
Condition: start condition failed at Sun 2018-07-08 10:28:01 UTC; 28s ago
           └─ ConditionFileNotEmpty=/etc/keepalived/keepalived.conf was not met

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How to fix this error?
Thx before

Answer 1

There is a mismatch between title and problem as keepalived is already enabled but fails to start.

   Loaded: loaded (/lib/systemd/system/keepalived.service; **enabled**; vendor preset: enabled)

According to attached message, configuration file (/etc/keepalived/keepalived.conf) is empty and preventing keepalived to start due to specified condition (CondtionFileNotEmpty). Add configuration to the file and start keepalived then.