Remove direct dependency on google/cadvisor

Author: hakman

go.mod

@@ -12,7 +12,6 @@ require (
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
 	github.com/euank/go-kmsg-parser v2.0.0+incompatible
 	github.com/golang/glog v1.1.1
-	github.com/google/cadvisor v0.36.0
 	github.com/hpcloud/tail v1.0.0
 	github.com/onsi/ginkgo v1.16.5
 	github.com/onsi/gomega v1.27.8

go.sum

@@ -21,7 +21,7 @@ import (
 	"io"
 	"os"
 
-	"github.com/google/cadvisor/utils/tail"
+	"k8s.io/node-problem-detector/third_party/cadvisor/tail"
 )
 
 // getLogReader returns log reader for filelog log. Note that getLogReader doesn't look back

pkg/systemlogmonitor/logwatchers/filelog/log_watcher_linux.go

@@ -0,0 +1 @@
+Forked from https://github.com/google/cadvisor/blob/8016f8ba96e74fb2001b121e0145dc2d0fe056e3/utils/tail/tail.go to support simple file tailing.

vendor/github.com/google/cadvisor/AUTHORS renamed to third_party/cadvisor/AUTHORS

@@ -0,0 +1,34 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tail
+
+import (
+	"io"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestReadNewTail(t *testing.T) {
+	// Read should return (0, io.EOF) before first
+	// attemptOpen.
+	tail, err := newTail("test/nonexist/file")
+	assert.NoError(t, err)
+	buf := make([]byte, 0, 100)
+	n, err := tail.Read(buf)
+	assert.Equal(t, n, 0)
+	assert.Equal(t, len(buf), 0)
+	assert.EqualError(t, err, io.EOF.Error())
+}

vendor/github.com/google/cadvisor/LICENSE renamed to third_party/cadvisor/LICENSE

@@ -147,9 +147,6 @@ github.com/golang/protobuf/ptypes/any
 github.com/golang/protobuf/ptypes/duration
 github.com/golang/protobuf/ptypes/timestamp
 github.com/golang/protobuf/ptypes/wrappers
-# github.com/google/cadvisor v0.36.0
-## explicit; go 1.13
-github.com/google/cadvisor/utils/tail
 # github.com/google/gnostic-models v0.6.8
 ## explicit; go 1.18
 github.com/google/gnostic-models/compiler