dial identity in metrics agent for frontend (#74, #76)

endpoints/frontend/http.go

@@ -28,7 +28,10 @@ type httpListen struct {
 }
 
 func NewHTTP(cfg *Config) (*httpListen, error) {
-	ma := newMetricsAgent()
+	ma, err := newMetricsAgent(cfg.Identity)
+	if err != nil {
+		return nil, err
+	}
 	go ma.run()
 
 	zCfgPath, err := zrokdir.ZitiIdentityFile(cfg.Identity)

endpoints/frontend/metrics.go

@@ -3,12 +3,18 @@ package frontend
 import (
 	"fmt"
 	"github.com/openziti-test-kitchen/zrok/util"
+	"github.com/openziti-test-kitchen/zrok/zrokdir"
+	"github.com/openziti/sdk-golang/ziti"
+	"github.com/openziti/sdk-golang/ziti/config"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 	"time"
 )
 
 type metricsAgent struct {
 	metrics map[string]sessionMetrics
 	updates chan metricsUpdate
+	zCtx    ziti.Context
 }
 
 type sessionMetrics struct {
@@ -23,11 +29,21 @@ type metricsUpdate struct {
 	bytesWritten int64
 }
 
-func newMetricsAgent() *metricsAgent {
+func newMetricsAgent(identityName string) (*metricsAgent, error) {
+	zif, err := zrokdir.ZitiIdentityFile(identityName)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error getting '%v' identity file", identityName)
+	}
+	zCfg, err := config.NewFromFile(zif)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error loading '%v' identity", identityName)
+	}
+	logrus.Infof("loaded '%v' identity", identityName)
 	return &metricsAgent{
 		metrics: make(map[string]sessionMetrics),
 		updates: make(chan metricsUpdate, 10240),
-	}
+		zCtx:    ziti.NewContextWithConfig(zCfg),
+	}, nil
 }
 
 func (ma *metricsAgent) run() {
@@ -56,7 +72,7 @@ func (ma *metricsAgent) run() {
 				out += fmt.Sprintf("\t[%v]: %s/%s (%s)\n", k, util.BytesToSize(v.bytesRead), util.BytesToSize(v.bytesWritten), age.String())
 			}
 			out += "}\n"
-			//fmt.Println(out)
+
 		}
 	}
 }