read secret from k8s

helper.go

@@ -0,0 +1,68 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package main
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+const (
+	githubAPI = "api/v3"
+	giteaAPI  = "api/v1"
+)
+
+func getNS() (string, error) {
+	if ns := os.Getenv("POD_NAMESPACE"); ns != "" {
+		return ns, nil
+	}
+	if data, err := ioutil.ReadFile("/var/run/secrets/kubernetes.io/serviceaccount/namespace"); err == nil {
+		if ns := strings.TrimSpace(string(data)); len(ns) > 0 {
+			return ns, nil
+		}
+	}
+
+	return "default", nil
+}
+
+func logError(w http.ResponseWriter, msg string) {
+	log.Printf("error: %s", msg)
+	http.Error(w, msg, http.StatusInternalServerError)
+}
+
+func contains(a []string, s string) bool {
+	for _, v := range a {
+		if strings.Contains(s, v) {
+			return true
+		}
+	}
+	return false
+}
+
+func detectAPI(r *http.Request) string {
+	if r.Header.Get(giteaEvent) != "" {
+		return giteaAPI
+	}
+	if r.Header.Get(githubEvent) != "" {
+		return githubAPI
+	}
+	return ""
+}
+
+func readBody(r *http.Request, i interface{}) (body []byte, err error) {
+	defer r.Body.Close()
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+	if debug {
+		log.Printf("debug headers: %#v", r.Header)
+		log.Printf("debug: %s", string(body))
+	}
+	err = json.Unmarshal(body, i)
+	return
+}