Support Processor & Aggregator Plugins

closes #1726

cmd/telegraf/telegraf.go

@@ -12,12 +12,13 @@ import (
 
 	"github.com/influxdata/telegraf/agent"
 	"github.com/influxdata/telegraf/internal/config"
+	_ "github.com/influxdata/telegraf/plugins/aggregators/all"
 	"github.com/influxdata/telegraf/logger"
 	"github.com/influxdata/telegraf/plugins/inputs"
 	_ "github.com/influxdata/telegraf/plugins/inputs/all"
 	"github.com/influxdata/telegraf/plugins/outputs"
 	_ "github.com/influxdata/telegraf/plugins/outputs/all"
-
+	_ "github.com/influxdata/telegraf/plugins/processors/all"
 	"github.com/kardianos/service"
 )
 
@@ -111,6 +112,8 @@ Examples:
   telegraf -config telegraf.conf -input-filter cpu:mem -output-filter influxdb
 `
 
+var logger service.Logger
+
 var stop chan struct{}
 
 var srvc service.Service
@@ -306,6 +309,10 @@ func main() {
 		if err != nil {
 			log.Fatal(err)
 		}
+		logger, err = s.Logger(nil)
+		if err != nil {
+			log.Fatal(err)
+		}
 		// Handle the -service flag here to prevent any issues with tooling that
 		// may not have an interactive session, e.g. installing from Ansible.
 		if *fService != "" {