proxy: add random reload offset for HA

proxy/pkg/server/api.go

@@ -3,6 +3,7 @@ package server
 import (
 	"crypto/sha512"
 	"encoding/hex"
+	"math/rand"
 	"net/http"
 	"net/url"
 	"os"
@@ -38,6 +39,8 @@ type APIController struct {
 	lastBundleHash string
 	logger         *log.Entry
 
+	reloadOffset time.Duration
+
 	wsConn *recws.RecConn
 }
 
@@ -130,8 +133,11 @@ func NewAPIController(pbURL url.URL, token string) *APIController {
 		commonOpts: getCommonOptions(),
 		server:     NewServer(),
 
+		reloadOffset: time.Duration(rand.Intn(10)) * time.Second,
+
 		lastBundleHash: "",
 	}
+	ac.logger.Debugf("HA Reload offset: %s", ac.reloadOffset)
 	ac.initWS(pbURL, outpost.Pk)
 	return ac
 }

proxy/pkg/server/api_ws.go

@@ -82,6 +82,7 @@ func (ac *APIController) startWSHandler() {
 			continue
 		}
 		if wsMsg.Instruction == WebsocketInstructionTriggerUpdate {
+			time.Sleep(ac.reloadOffset)
 			err := ac.UpdateIfRequired()
 			if err != nil {
 				ac.logger.WithField("loop", "ws-handler").WithError(err).Debug("Failed to update")