Initial project structure, HTTP server

.gitignore

@@ -0,0 +1 @@
+matrix-alertmanager-receiver

Makefile

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+NAME=matrix-alertmanager-receiver
+
+all: build
+
+getDeps:
+	go get -v
+
+build:
+	go build
+
+clean:
+	rm $(NAME)

README.md

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+# matrix-alertmanager-receiver
+
+TODO: synopsis, existing matrix-alermanager
+
+See `matrix-alermanager-receiver.scd` for usage.

main.go

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+package main
+
+import (
+	"os"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+func main() {
+	// Initialize logger.
+	var logger *log.Logger = log.New(os.Stdout, "", log.Flags())
+
+	// Handle command-line arguments.
+	var port = flag.Int("port", 9088, "HTTP port to listen on (incoming alertmanager webhooks)")
+	flag.Parse()
+
+	// Initialize Matrix client.
+	// TODO
+
+	// Initialize HTTP serve (= listen for incoming requests).
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, `Hi! I receive prometheus-alertmanager webhooks on /alert and forward them to Matrix.
+
+You will find more details on: http://git.sr.ht/~fnux/matrix-prometheus-alertmanager`)
+	})
+
+	http.HandleFunc("/alert", func(w http.ResponseWriter, r *http.Request) {
+	})
+
+	var listenAddr = fmt.Sprintf(":%v", *port)
+	logger.Printf("Listening for HTTP requests (webhooks) on %v", listenAddr)
+	log.Fatal(http.ListenAndServe(listenAddr, nil))
+}