##README

HAProxy can be use to proxy for TCP and HTTP-based applications. But when we use it to proxy the TCP request, how can we perform the health-check? May this tool can help u.

This tool is based on BaseHTTPServer, "HEAD http://localhost:8000/healthcheck_6379" will examine the port 6379, when it is alive, return 200. Otherwise, return 503.

HAProxy Config:

global
…
defaults
…
listen redis
    bind 0.0.0.0:6379
    balance roundrobin
    mode   tcp
    option httpchk HEAD /healthcheck_6379 HTTP/1.0\r\n
    server redis1 192.168.1.50:6379 check port 8000 inter 5000 fall 3
    server redis2 192.168.1.51:6379 check port 8000 inter 5000 fall 3

backend (redis as an example)

python healthcheck.py