haproxy-example/haproxy.cfg at master · marmotte/haproxy-example · GitHub

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global
    log 127.0.0.1 local2 notice
    maxconn 4096
    user nobody
    group nobody
    daemon

defaults
    log global
    mode tcp
    retries 3
    option redispatch
    maxconn 2000
    timeout connect 2s
    timeout client 120s
    timeout server 120s

 frontend monitor
    bind :80
    mode http
    stats enable
    stats show-legends
    stats uri   /stats

frontend redis
    bind :6379
    default_backend redis_backend

backend redis_backend
    option tcp-check
    tcp-check send PING\r\n
    tcp-check expect string +PONG
    tcp-check send INFO\ REPLICATION\r\n
    tcp-check expect string role:master
    tcp-check send QUIT\r\n
    tcp-check expect string +OK
    server redis1 $REDIS_HOST:6379 check inter 1s