package main
import (
"encoding/json"
"io"
"log"
"net/http"
"os"
)
func main() {
addr := envDefault("AGENTMON_UI_ADDR", ":8082")
queryAPIBase := envDefault("AGENTMON_QUERY_BASE", "http://query-api")
mux := http.NewServeMux()
mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("ok"))
})
mux.HandleFunc("/api/events", func(w http.ResponseWriter, r *http.Request) {
resp, err := http.Get(queryAPIBase + "/v1/events?limit=100")
if err != nil {
w.WriteHeader(http.StatusBadGateway)
_, _ = w.Write([]byte("query-api unreachable"))
return
}
defer resp.Body.Close()
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(resp.StatusCode)
_, _ = io.Copy(w, resp.Body)
})
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html; charset=utf-8")
payload, _ := json.Marshal(map[string]any{"query_api": queryAPIBase})
_, _ = w.Write([]byte("agentmon
Recent events:
loading...
"))
_, _ = w.Write([]byte(""))
})
log.Printf("web-ui listening on %s", addr)
log.Fatal(http.ListenAndServe(addr, mux))
}
func envDefault(key, def string) string {
if v := os.Getenv(key); v != "" {
return v
}
return def
}