Supervisord status page

Simple supervisord statuspage for healthcheck. Just call simple /healtz via HTTP and get 200 or 500 and process list.

Usage

Supervisord configuration

[supervisord]
nodaemon=true
; turn on XML-RPC interface
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
; listen on localhost 9001
[inet_http_server]         ; inet (TCP) server disabled by default
port=127.0.0.1:9001
[program:backend]
command=/bin/bash -lc "/usr/local/bin/svd-statuspage"
autorestart=true

Config variables

• RPC_URL - supervisord RPC endpoint, default http://127.0.0.1:9001/RPC2
• LISTEN_IP - listen IP, default 0.0.0.0
• LISTEN_PORT - listen port, default 8080

Build & run

make
make run
./svd-statuspage
LISTEN_PORT=9090 LISTEN_IP=127.0.0.1 ./svd-statuspage

Get status

curl -v localhost:8080/healtz | jq .

Output ERROR

Return 500 Internal Server Error

{
  "status": "ERROR",
  "processes": [
    {
      "name": "backend",
      "status": "FATAL",
      "description": "Exited too quickly (process log may have details)",
      "pid": "0"
    }
  ]
}

Output OK

Return 200 OK

{
  "status": "OK",
  "processes": [
    {
      "name": "backend",
      "status": "RUNNING",
      "description": "pid 78855, uptime 0:00:05",
      "pid": "78855"
    }
  ]
}