Update kubernetes watcher to use official client-go libraries (#13051)

* Update kubernetes library to use official client-go

CHANGELOG.next.asciidoc

@@ -205,6 +205,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Add `decompress_gzip_field` processor. {pull}12733[12733]
 - Add `timestamp` processor for parsing time fields. {pull}12699[12699]
 - Add a check so alias creation explicitely fails if there is an index with the same name. {pull}13070[13070]
+- Update kubernetes watcher to use official client-go libraries. {pull}13051[13051]
 
 *Auditbeat*
 

NOTICE.txt

@@ -854,16 +854,6 @@ This product includes a number of subcomponents with
 separate copyright notices and license terms. Your use of these
 subcomponents is subject to the terms and conditions of the 
 subcomponent's license, as noted in the LICENSE file.
---------------------------------------------------------------------
-Dependency: github.com/ericchiang/k8s
-Version: =v1.0.0/in-cluster-ipv6
-Revision: 33b346590d1dd4eaac217471671f736bcdab492d
-License type (autodetected): Apache-2.0
-./vendor/github.com/ericchiang/k8s/LICENSE:
---------------------------------------------------------------------
-Apache License 2.0
-
-
 --------------------------------------------------------------------
 Dependency: github.com/fatih/color
 Version: v1.5.0
@@ -1517,6 +1507,48 @@ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
+--------------------------------------------------------------------
+Dependency: github.com/gogo/protobuf
+Revision: 65acae22fc9d1fe290b33faa2bd64cdc20a463a0
+License type (autodetected): BSD-3-Clause
+./vendor/github.com/gogo/protobuf/LICENSE:
+--------------------------------------------------------------------
+Copyright (c) 2013, The GoGo Authors. All rights reserved.
+
+Protocol Buffers for Go with Gadgets
+
+Go support for Protocol Buffers - Google's data interchange format
+
+Copyright 2010 The Go Authors.  All rights reserved.
+https://github.com/golang/protobuf
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
 --------------------------------------------------------------------
 Dependency: github.com/gogo/protobuf
 Revision: 636bf0302bc95575d69441b25a2603156ffdddf1
@@ -1677,6 +1709,49 @@ License type (autodetected): Apache-2.0
 Apache License 2.0
 
 
+--------------------------------------------------------------------
+Dependency: github.com/google/go-cmp
+Revision: 1b316004397f1f336546ca058ddb5b95c41a8772
+License type (autodetected): BSD-3-Clause
+./vendor/github.com/google/go-cmp/LICENSE:
+--------------------------------------------------------------------
+Copyright (c) 2017 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+--------------------------------------------------------------------
+Dependency: github.com/google/gofuzz
+Revision: f140a6486e521aad38f5917de355cbf147cc0496
+License type (autodetected): Apache-2.0
+./vendor/github.com/google/gofuzz/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
 --------------------------------------------------------------------
 Dependency: github.com/google/uuid
 Revision: 281f560d28af7174109514e936f94c2ab2cb2823
@@ -1746,6 +1821,15 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+--------------------------------------------------------------------
+Dependency: github.com/googleapis/gnostic
+Revision: 25d8b0b6698593f520d9d8dc5a88e6b16ca9ecc0
+License type (autodetected): Apache-2.0
+./vendor/github.com/googleapis/gnostic/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
 --------------------------------------------------------------------
 Dependency: github.com/gorhill/cronexpr
 Revision: d520615e531a6bf3fb69406b9eba718261285ec8
@@ -2242,6 +2326,34 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
+--------------------------------------------------------------------
+Dependency: github.com/json-iterator/go
+Revision: 27518f6661eba504be5a7a9a9f6d9460d892ade3
+License type (autodetected): MIT
+./vendor/github.com/json-iterator/go/LICENSE:
+--------------------------------------------------------------------
+MIT License
+
+Copyright (c) 2016 json-iterator
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
 --------------------------------------------------------------------
 Dependency: github.com/jstemmer/go-junit-report
 Revision: 385fac0ced9acaae6dc5b39144194008ded00697
@@ -2598,6 +2710,24 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
+--------------------------------------------------------------------
+Dependency: github.com/modern-go/concurrent
+Revision: bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94
+License type (autodetected): Apache-2.0
+./vendor/github.com/modern-go/concurrent/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: github.com/modern-go/reflect2
+Revision: 94122c33edd36123c84d5368cfb2b69df93a0ec8
+License type (autodetected): Apache-2.0
+./vendor/github.com/modern-go/reflect2/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
 --------------------------------------------------------------------
 Dependency: github.com/OneOfOne/xxhash
 Revision: 74ace4fe5525ef62ce28d5093d6b0faaa6a575f3
@@ -4305,16 +4435,30 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 --------------------------------------------------------------------
 Dependency: gopkg.in/yaml.v2
-Revision: cd8b52f8269e0feb286dfeef29f8fe4d5b397e0b
+Revision: 5420a8b6744d3b0345ab293f6fcba19c978f1183
 License type (autodetected): Apache-2.0
 ./vendor/gopkg.in/yaml.v2/LICENSE:
 --------------------------------------------------------------------
 Apache License 2.0
 
+-------NOTICE-----
+Copyright 2011-2016 Canonical Ltd.
+
+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.
 
 --------------------------------------------------------------------
 Dependency: gopkg.in/yaml.v2
-Revision: cd8b52f8269e0feb286dfeef29f8fe4d5b397e0b
+Revision: 5420a8b6744d3b0345ab293f6fcba19c978f1183
 License type (autodetected): MIT
 ./vendor/gopkg.in/yaml.v2/LICENSE.libyaml:
 --------------------------------------------------------------------
@@ -4387,6 +4531,109 @@ Parts of this package were made available under the license covering
 the Go language and all attended core libraries. That license follows.
 --------------------------------------------------------------------------------
 
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+--------------------------------------------------------------------
+Dependency: k8s.io/api
+Revision: b90922c02518d683852c467209bbab0a76db36e0
+License type (autodetected): Apache-2.0
+./vendor/k8s.io/api/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: k8s.io/apimachinery
+Revision: bfcf53abc9f82bad3e534fcb1c36599d3c989ebf
+License type (autodetected): Apache-2.0
+./vendor/k8s.io/apimachinery/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: k8s.io/client-go
+Version: v12.0.0
+Revision: 78d2af792babf2dd937ba2e2a8d99c753a5eda89
+License type (autodetected): Apache-2.0
+./vendor/k8s.io/client-go/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: k8s.io/klog
+Revision: 6a023d6d0e0954feabd46dc2d3a6a2c3c991fe1a
+License type (autodetected): Apache-2.0
+./vendor/k8s.io/klog/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: k8s.io/utils
+Revision: 3dccf664f023863740c508fb4284e49742bedfa4
+License type (autodetected): Apache-2.0
+./vendor/k8s.io/utils/LICENSE:
+--------------------------------------------------------------------
+Apache License 2.0
+
+
+--------------------------------------------------------------------
+Dependency: sigs.k8s.io/yaml
+Revision: 4cd0c284b15f1735b8cc247df097d262b8903f9f
+License type (autodetected): MIT
+./vendor/sigs.k8s.io/yaml/LICENSE:
+--------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014 Sam Ghods
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
 Copyright (c) 2012 The Go Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

libbeat/autodiscover/providers/kubernetes/config.go

@@ -26,7 +26,6 @@ import (
 
 // Config for kubernetes autodiscover provider
 type Config struct {
-	InCluster      bool          `config:"in_cluster"`
 	KubeConfig     string        `config:"kube_config"`
 	Host           string        `config:"host"`
 	Namespace      string        `config:"namespace"`
@@ -42,8 +41,7 @@ type Config struct {
 
 func defaultConfig() *Config {
 	return &Config{
-		InCluster:      true,
-		SyncPeriod:     1 * time.Second,
+		SyncPeriod:     10 * time.Minute,
 		CleanupTimeout: 60 * time.Second,
 		Prefix:         "co.elastic",
 	}