api: expose v2 proxy timestamps as unix seconds (#5402)

pkg/metrics/mem/server.go

@@ -239,9 +239,11 @@ func toProxyStats(name string, proxyStats *ProxyStatistics) *ProxyStats {
 	}
 	if !proxyStats.LastStartTime.IsZero() {
 		ps.LastStartTime = proxyStats.LastStartTime.Format("01-02 15:04:05")
+		ps.LastStartAt = proxyStats.LastStartTime.Unix()
 	}
 	if !proxyStats.LastCloseTime.IsZero() {
 		ps.LastCloseTime = proxyStats.LastCloseTime.Format("01-02 15:04:05")
+		ps.LastCloseAt = proxyStats.LastCloseTime.Unix()
 	}
 	return ps
 }

pkg/metrics/mem/server_test.go

@@ -22,6 +22,12 @@ func TestServerMetricsUsesClockForProxyTimestamps(t *testing.T) {
 	clk.SetTime(closedAt)
 	metrics.CloseProxy("proxy", "tcp")
 	require.Equal(closedAt, metrics.info.ProxyStatistics["proxy"].LastCloseTime)
+
+	stats := metrics.GetProxyByName("proxy")
+	require.Equal(start.Format("01-02 15:04:05"), stats.LastStartTime)
+	require.Equal(closedAt.Format("01-02 15:04:05"), stats.LastCloseTime)
+	require.Equal(start.Unix(), stats.LastStartAt)
+	require.Equal(closedAt.Unix(), stats.LastCloseAt)
 }
 
 func TestServerMetricsClearUselessInfoUsesClock(t *testing.T) {

pkg/metrics/mem/types.go

@@ -41,6 +41,8 @@ type ProxyStats struct {
 	TodayTrafficOut int64
 	LastStartTime   string
 	LastCloseTime   string
+	LastStartAt     int64
+	LastCloseAt     int64
 	CurConns        int64
 }