Add OpenCensus and gopsutil as dependency

Author: Xuewei Zhang

go.mod

@@ -4,7 +4,7 @@ go 1.11
 
 require (
 	code.cloudfoundry.org/clock v0.0.0-20180518195852-02e53af36e6c
-	contrib.go.opencensus.io/exporter/prometheus v0.0.0-20190427222117-f6cda26f80a3 // indirect
+	contrib.go.opencensus.io/exporter/prometheus v0.0.0-20190427222117-f6cda26f80a3
 	github.com/PuerkitoBio/purell v1.0.0 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2 // indirect
 	github.com/StackExchange/wmi v0.0.0-20181212234831-e0a55b97c705 // indirect
@@ -13,7 +13,6 @@ require (
 	github.com/coreos/pkg v0.0.0-20160620232715-fa29b1d70f0b // indirect
 	github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633 // indirect
 	github.com/euank/go-kmsg-parser v2.0.1+incompatible
-	github.com/fsnotify/fsnotify v0.0.0-20160816051541-f12c6236fe7b // indirect
 	github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680 // indirect
 	github.com/go-ole/go-ole v1.2.4 // indirect
 	github.com/go-openapi/jsonpointer v0.0.0-20160704185906-46af16f9f7b1 // indirect
@@ -22,30 +21,35 @@ require (
 	github.com/go-openapi/swag v0.0.0-20160704191624-1d0bd113de87 // indirect
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
 	github.com/golang/groupcache v0.0.0-20150125180832-604ed5785183 // indirect
-	github.com/golang/protobuf v1.3.1 // indirect
-	github.com/google/btree v0.0.0-20160524151835-7d79101e329e // indirect
+	github.com/google/btree v1.0.0 // indirect
 	github.com/google/cadvisor v0.33.0
 	github.com/google/gofuzz v0.0.0-20161122191042-44d81051d367 // indirect
 	github.com/googleapis/gnostic v0.1.0 // indirect
 	github.com/gregjones/httpcache v0.0.0-20170926212834-c1f8028e62ad // indirect
-	github.com/hashicorp/golang-lru v0.5.1 // indirect
 	github.com/howeyc/gopass v0.0.0-20160826175423-3ca23474a7c7 // indirect
 	github.com/imdario/mergo v0.0.0-20141206190957-6633656539c1 // indirect
 	github.com/json-iterator/go v0.0.0-20171130024224-051434fab7e0 // indirect
 	github.com/juju/ratelimit v0.0.0-20170523012141-5b9ff8664717 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
 	github.com/mailru/easyjson v0.0.0-20160728113105-d5b7844b561a // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v0.0.0-20180320133207-05fbef0ca5da // indirect
+	github.com/onsi/ginkgo v1.8.0 // indirect
+	github.com/onsi/gomega v1.5.0 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90 // indirect
 	github.com/prometheus/common v0.3.0 // indirect
 	github.com/prometheus/procfs v0.0.0-20190425082905-87a4384529e0 // indirect
-	github.com/shirou/gopsutil v0.0.0-20190427031343-fa9845945e5b // indirect
+	github.com/shirou/gopsutil v2.18.12+incompatible
 	github.com/sigma/go-inotify v0.0.0-20181102212354-c87b6cf5033d // indirect
 	github.com/spf13/pflag v1.0.3
 	github.com/stretchr/testify v1.3.0
-	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 // indirect
+	github.com/tedsuo/ifrit v0.0.0-20180802180643-bea94bb476cc // indirect
+	go.opencensus.io v0.22.0
+	golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 // indirect
+	golang.org/x/net v0.0.0-20190603091049-60506f45cf65 // indirect
+	golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed // indirect
+	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/inf.v0 v0.9.0 // indirect
+	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 // indirect
 	k8s.io/api v0.0.0-20180127130940-acf347b865f2
 	k8s.io/apimachinery v0.0.0-20180126010752-19e3f5aa3adc
 	k8s.io/client-go v0.0.0-20180103015815-9389c055a838