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Posted to notifications@skywalking.apache.org by ke...@apache.org on 2021/03/30 13:45:37 UTC

[skywalking-kubernetes-event-exporter] branch main created (now 7335e71)

This is an automated email from the ASF dual-hosted git repository.

kezhenxu94 pushed a change to branch main
in repository https://gitbox.apache.org/repos/asf/skywalking-kubernetes-event-exporter.git.


      at 7335e71  feature: set up project skeleton, add basic function

This branch includes the following new commits:

     new 81dc62c  Initialize project
     new 7335e71  feature: set up project skeleton, add basic function

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


[skywalking-kubernetes-event-exporter] 02/02: feature: set up project skeleton, add basic function

Posted by ke...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

kezhenxu94 pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/skywalking-kubernetes-event-exporter.git

commit 7335e715caeb48699a94a987b119a0f9921a6b1e
Author: kezhenxu94 <ke...@apache.org>
AuthorDate: Tue Mar 30 21:45:01 2021 +0800

    feature: set up project skeleton, add basic function
---
 .gitignore                              |   1 +
 .gitmodules                             |   3 +
 LICENSE                                 | 202 +++++++++++++++
 Makefile                                |   6 +-
 NOTICE                                  |   5 +
 api                                     |   1 +
 assets/assets.go                        |  25 ++
 assets/default-config.yaml              |  31 +++
 cmd/root.go                             |  18 +-
 cmd/{root.go => start.go}               |  51 ++--
 configs/config.go                       |  60 +++++
 go.mod                                  |   7 +
 go.sum                                  | 433 +++++++++++++++++++++-----------
 pkg/event/event.go                      |  30 +++
 cmd/root.go => pkg/exporter/exporter.go |  48 ++--
 pkg/exporter/skywalking.go              | 227 +++++++++++++++++
 pkg/filter/filter.go                    |  34 +++
 cmd/root.go => pkg/k8s/client.go        |  47 ++--
 pkg/k8s/event.go                        |  73 ++++++
 pkg/pipe/pipe.go                        | 115 +++++++++
 20 files changed, 1199 insertions(+), 218 deletions(-)

diff --git a/.gitignore b/.gitignore
index 3962ab6..efbd7bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.*
 .idea
 coverage.txt
 bin
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..fc7e37b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "api"]
+	path = api
+	url = http://github.com/apache/skywalking-data-collect-protocol/
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d346d1f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
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+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Work" shall mean the work of authorship, whether in Source or
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+      form, that is based on (or derived from) the Work and for which the
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+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
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+      the original version of the Work and any modifications or additions
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+      communication on electronic mailing lists, source code control systems,
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+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
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+      meet the following conditions:
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+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      risks associated with Your exercise of permissions under this License.
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
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+   Copyright {yyyy} {name of copyright owner}
+
+   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.
+
diff --git a/Makefile b/Makefile
index 32ce3bd..3fe6c6a 100644
--- a/Makefile
+++ b/Makefile
@@ -38,6 +38,11 @@ RELEASE_SRC = $(APP)-$(VERSION)-src
 
 all: clean lint license test build
 
+.PHONY: codegen
+codegen:
+	protoc -I=api --go_out=api --go-grpc_out=api api/event/Event.proto api/common/*.proto
+	cd api/skywalking/network && (rm go.mod || true) && go mod init skywalking/network && go mod tidy
+
 .PHONY: lint
 lint:
 	$(GO_LINT) version || curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GO_PATH)/bin
@@ -71,7 +76,6 @@ docker:
 .PHONY: clean
 clean:
 	-rm -rf bin
-	-rm -rf assets/*.gen.go
 	-rm -rf coverage.txt
 	-rm -rf "$(RELEASE_BIN)"*
 	-rm -rf "$(RELEASE_SRC)"*
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..e646f51
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+Apache SkyWalking
+Copyright 2017-2020 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/api b/api
new file mode 160000
index 0000000..c01af3b
--- /dev/null
+++ b/api
@@ -0,0 +1 @@
+Subproject commit c01af3b883217939e374d2245eac92036fb7394a
diff --git a/assets/assets.go b/assets/assets.go
new file mode 100644
index 0000000..8cd1c3f
--- /dev/null
+++ b/assets/assets.go
@@ -0,0 +1,25 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 assets
+
+import _ "embed"
+
+//go:embed default-config.yaml
+var DefaultConfig []byte
diff --git a/assets/default-config.yaml b/assets/default-config.yaml
new file mode 100644
index 0000000..0038981
--- /dev/null
+++ b/assets/default-config.yaml
@@ -0,0 +1,31 @@
+# Licensed to Apache Software Foundation (ASF) under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Apache Software Foundation (ASF) licenses this file to you 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.
+#
+
+filters:
+  - namespace: default
+    exporter: skywalking
+
+exporters:
+  skywalking:
+    template:
+      source:
+        service: ""
+        service-instance: ""
+        endpoint: ""
+      message: ""
+    address: "127.0.0.1:11800"
diff --git a/cmd/root.go b/cmd/root.go
index 1874aad..bcf0bc9 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -20,6 +20,10 @@
 package main
 
 import (
+	"io/ioutil"
+
+	"github.com/apache/skywalking-kubernetes-event-exporter/assets"
+	"github.com/apache/skywalking-kubernetes-event-exporter/configs"
 	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -42,11 +46,23 @@ var rootCmd = &cobra.Command{
 		}
 		logger.Log.SetLevel(level)
 
+		content := assets.DefaultConfig
+		if configFile != "" {
+			c, err := ioutil.ReadFile(configFile)
+			if err != nil {
+				return err
+			}
+			content = c
+		}
+		if err := configs.ParseConfig(content); err != nil {
+			return err
+		}
+
 		return nil
 	},
 }
 
 func init() {
 	rootCmd.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
-	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "config.yaml", "the config file")
+	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "", "the config file")
 }
diff --git a/cmd/root.go b/cmd/start.go
similarity index 55%
copy from cmd/root.go
copy to cmd/start.go
index 1874aad..bd9a7ac 100644
--- a/cmd/root.go
+++ b/cmd/start.go
@@ -20,33 +20,48 @@
 package main
 
 import (
-	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
-	"github.com/sirupsen/logrus"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/k8s"
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/pipe"
 	"github.com/spf13/cobra"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 )
 
-var (
-	verbosity  string
-	configFile string
-)
+func init() {
+	rootCmd.AddCommand(startCmd)
+}
 
-var rootCmd = &cobra.Command{
-	Use:           "skywalking-kubernetes-event-exporter",
-	Long:          "Export Kubernetes events to Apache SkyWalking",
-	SilenceUsage:  true,
-	SilenceErrors: true,
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
-		level, err := logrus.ParseLevel(verbosity)
+var startCmd = &cobra.Command{
+	Use:   "start",
+	Short: "Start skywalking-kubernetes-event-exporter",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		watcher, err := k8s.WatchEvents("default")
 		if err != nil {
 			return err
 		}
-		logger.Log.SetLevel(level)
 
-		return nil
+		p := pipe.Pipe{
+			Watcher: watcher,
+		}
+
+		if err = p.Init(); err != nil {
+			return err
+		}
+
+		addShutDownHook(p.Stop)
+
+		return p.Start()
 	},
 }
 
-func init() {
-	rootCmd.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
-	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "config.yaml", "the config file")
+func addShutDownHook(stopFunc func()) {
+	c := make(chan os.Signal)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		<-c
+		stopFunc()
+	}()
 }
diff --git a/configs/config.go b/configs/config.go
new file mode 100644
index 0000000..fca06a8
--- /dev/null
+++ b/configs/config.go
@@ -0,0 +1,60 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 configs
+
+import (
+	evnt "github.com/apache/skywalking-kubernetes-event-exporter/pkg/event"
+	"gopkg.in/yaml.v3"
+	v1 "k8s.io/api/core/v1"
+)
+
+type FilterConfig struct {
+	Reason   string `yaml:"reason"`
+	Message  string `yaml:"message"`
+	MinCount int32  `yaml:"min-count"`
+	Type     string `yaml:"type"`
+	Action   string `yaml:"action"`
+
+	Kind      string `yaml:"kind"`
+	Namespace string `yaml:"namespace"`
+	Name      string `yaml:"name"`
+
+	Exporter string `yaml:"exporter"`
+}
+
+func (filter *FilterConfig) Filter(event *v1.Event) bool {
+	if event == evnt.Stopper {
+		return false
+	}
+	return false
+}
+
+type ExporterConfig map[string]interface{}
+
+type Config struct {
+	Filters   []*FilterConfig           `mapstructure:"filters"`
+	Exporters map[string]ExporterConfig `mapstructure:"exporters"`
+}
+
+var GlobalConfig Config
+
+func ParseConfig(content []byte) error {
+	return yaml.Unmarshal(content, &GlobalConfig)
+}
diff --git a/go.mod b/go.mod
index 1c56603..58e9e0a 100644
--- a/go.mod
+++ b/go.mod
@@ -5,4 +5,11 @@ go 1.16
 require (
 	github.com/sirupsen/logrus v1.8.1
 	github.com/spf13/cobra v1.1.3
+	google.golang.org/grpc v1.36.0
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+	k8s.io/api v0.20.5
+	k8s.io/client-go v0.20.5
+	skywalking/network v0.0.0-00010101000000-000000000000
 )
+
+replace skywalking/network => ./api/skywalking/network
diff --git a/go.sum b/go.sum
index 0b305ad..39f5f04 100644
--- a/go.sum
+++ b/go.sum
@@ -4,316 +4,334 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go/bigquery v1.0.1 h1:hL+ycaJpVE9M7nLoiXb/Pn10ENE2u+oddxbD8uu0ZVU=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go v0.54.0 h1:3ithwDMr7/3vpAMXiH+ZQnYbuIsh+OPhUPMFC9enmn0=
+cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
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-rsc.io/binaryregexp v0.2.0 h1:HfqmD5MEmC0zvwBuF187nq9mdnXjXsSivRiXN7SmRkE=
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+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
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diff --git a/pkg/event/event.go b/pkg/event/event.go
new file mode 100644
index 0000000..7720ce9
--- /dev/null
+++ b/pkg/event/event.go
@@ -0,0 +1,30 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 event
+
+import v1 "k8s.io/api/core/v1"
+
+type Source struct {
+	Service         string `json:"service"`
+	ServiceInstance string `json:"serviceInstance"`
+	Endpoint        string `json:"endpoint"`
+}
+
+var Stopper = (*v1.Event)(nil)
diff --git a/cmd/root.go b/pkg/exporter/exporter.go
similarity index 54%
copy from cmd/root.go
copy to pkg/exporter/exporter.go
index 1874aad..53cbcdf 100644
--- a/cmd/root.go
+++ b/pkg/exporter/exporter.go
@@ -17,36 +17,36 @@
  * under the License.
  */
 
-package main
+package exporter
 
 import (
 	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
-	"github.com/sirupsen/logrus"
-	"github.com/spf13/cobra"
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/event"
+	v1 "k8s.io/api/core/v1"
 )
 
-var (
-	verbosity  string
-	configFile string
-)
+type Exporter interface {
+	Name() string
+	Init() error
+	Export(events chan *v1.Event)
+	Stop()
+}
+
+type MessageTemplate struct {
+	Source  *event.Source `mapstructure:"source"`
+	Message string        `mapstructure:"message"`
+}
+
+var exporters = map[string]Exporter{}
+
+func RegisterExporter(name string, exporter Exporter) {
+	if _, ok := exporters[name]; ok {
+		logger.Log.Panicf("exporter with name %v has already existed", name)
+	}
 
-var rootCmd = &cobra.Command{
-	Use:           "skywalking-kubernetes-event-exporter",
-	Long:          "Export Kubernetes events to Apache SkyWalking",
-	SilenceUsage:  true,
-	SilenceErrors: true,
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
-		level, err := logrus.ParseLevel(verbosity)
-		if err != nil {
-			return err
-		}
-		logger.Log.SetLevel(level)
-
-		return nil
-	},
+	exporters[name] = exporter
 }
 
-func init() {
-	rootCmd.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
-	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "config.yaml", "the config file")
+func GetExporter(name string) Exporter {
+	return exporters[name]
 }
diff --git a/pkg/exporter/skywalking.go b/pkg/exporter/skywalking.go
new file mode 100644
index 0000000..3b557fc
--- /dev/null
+++ b/pkg/exporter/skywalking.go
@@ -0,0 +1,227 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 exporter
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"html/template"
+	sw "skywalking/network/event/v3"
+	"time"
+
+	"github.com/apache/skywalking-kubernetes-event-exporter/configs"
+	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/event"
+	"google.golang.org/grpc"
+	k8score "k8s.io/api/core/v1"
+)
+
+type SkyWalking struct {
+	config     SkyWalkingConfig
+	client     sw.EventServiceClient
+	connection *grpc.ClientConn
+	stopper    chan struct{}
+}
+
+type SkyWalkingConfig struct {
+	Address  string           `mapstructure:"address"`
+	Template *MessageTemplate `mapstructure:"template"`
+}
+
+func init() {
+	s := &SkyWalking{
+		stopper: make(chan struct{}),
+	}
+	RegisterExporter(s.Name(), s)
+}
+
+func (exporter *SkyWalking) Init() error {
+	config := SkyWalkingConfig{}
+
+	if c := configs.GlobalConfig.Exporters[exporter.Name()]; c == nil {
+		return fmt.Errorf("configs of %+v exporter cannot be empty", exporter.Name())
+	} else if marshal, err := json.Marshal(c); err != nil {
+		return err
+	} else if err := json.Unmarshal(marshal, &config); err != nil {
+		return err
+	}
+
+	conn, err := grpc.Dial(config.Address, grpc.WithInsecure())
+	if err != nil {
+		return err
+	}
+
+	exporter.config = config
+	exporter.connection = conn
+	exporter.client = sw.NewEventServiceClient(conn)
+
+	return nil
+}
+
+func (exporter *SkyWalking) Name() string {
+	return "skywalking"
+}
+
+// TODO error handling
+func (exporter *SkyWalking) Export(events chan *k8score.Event) {
+	stream, err := exporter.client.Collect(context.Background())
+	for err != nil {
+		select {
+		case <-exporter.stopper:
+			logger.Log.Debugf("draining event channel")
+			for e := range events {
+				if e == event.Stopper {
+					break
+				}
+			}
+			return
+		default:
+			logger.Log.Errorf("failed to connect to SkyWalking server. %+v", err)
+			time.Sleep(3 * time.Second)
+			stream, err = exporter.client.Collect(context.Background())
+		}
+	}
+
+	defer func() {
+		if err := stream.CloseSend(); err != nil {
+			logger.Log.Warnf("failed to close stream. %+v", err)
+		}
+	}()
+
+	func() {
+		for {
+			select {
+			case <-exporter.stopper:
+				logger.Log.Debugf("draining event channel")
+				for e := range events {
+					if e == event.Stopper {
+						break
+					}
+				}
+				return
+			case kEvent := <-events:
+				if kEvent == event.Stopper {
+					return
+				}
+				logger.Log.Debugf("exporting event to %v: %v", exporter.Name(), kEvent)
+
+				t := sw.Type_Normal
+				if kEvent.Type == "Warning" {
+					t = sw.Type_Error
+				}
+				swEvent := &sw.Event{
+					Uuid:      string(kEvent.UID),
+					Source:    &sw.Source{},
+					Name:      kEvent.Reason,
+					Type:      t,
+					Message:   kEvent.Message,
+					StartTime: kEvent.FirstTimestamp.UnixNano() / 1000000,
+					EndTime:   kEvent.LastTimestamp.Unix() / 1000000,
+				}
+				if exporter.config.Template != nil {
+					if err := exporter.config.Template.Render(swEvent, kEvent); err != nil {
+						logger.Log.Warnf("failed to render the template, using the default event content. %+v", err)
+					}
+				}
+				if err := stream.Send(swEvent); err != nil {
+					logger.Log.Errorf("failed to send event to %+v. %+v", exporter.Name(), err)
+				}
+			}
+		}
+	}()
+}
+
+func (tmplt *MessageTemplate) Render(event *sw.Event, data *k8score.Event) error {
+	var buf bytes.Buffer
+
+	// Render Event Message
+	if tmplt.Message != "" {
+		buf.Reset()
+		t, err := template.New("EventMsg").Parse(tmplt.Message)
+		if err != nil {
+			return err
+		}
+		if err := t.Execute(&buf, data); err != nil {
+			return err
+		}
+		if buf.Len() > 0 {
+			event.Message = buf.String()
+		}
+	}
+
+	// Render Event Source
+	if tmplt.Source != nil {
+		// Render Event Source Service
+		if tmplt.Source.Service != "" {
+			buf.Reset()
+			t, err := template.New("EventSourceService").Parse(tmplt.Source.Service)
+			if err != nil {
+				return err
+			}
+			if err := t.Execute(&buf, data); err != nil {
+				return err
+			}
+			if buf.Len() > 0 {
+				event.Source.Service = buf.String()
+			}
+		}
+		// Render Event Source Service
+		if tmplt.Source.ServiceInstance != "" {
+			buf.Reset()
+			t, err := template.New("EventSourceServiceInstance").Parse(tmplt.Source.ServiceInstance)
+			if err != nil {
+				return err
+			}
+			if err := t.Execute(&buf, data); err != nil {
+				return err
+			}
+			if buf.Len() > 0 {
+				event.Source.ServiceInstance = buf.String()
+			}
+		}
+		// Render Event Source Endpoint
+		if tmplt.Source.Endpoint != "" {
+			buf.Reset()
+			t, err := template.New("EventSourceEndpoint").Parse(tmplt.Source.Endpoint)
+			if err != nil {
+				return err
+			}
+			if err := t.Execute(&buf, data); err != nil {
+				return err
+			}
+			if buf.Len() > 0 {
+				event.Source.Endpoint = buf.String()
+			}
+		}
+	}
+
+	return nil
+}
+
+func (exporter *SkyWalking) Stop() {
+	exporter.stopper <- struct{}{}
+	close(exporter.stopper)
+
+	if err := exporter.connection.Close(); err != nil {
+		logger.Log.Errorf("failed to close connection. %+v", err)
+	}
+}
diff --git a/pkg/filter/filter.go b/pkg/filter/filter.go
new file mode 100644
index 0000000..e23e6fa
--- /dev/null
+++ b/pkg/filter/filter.go
@@ -0,0 +1,34 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 filter
+
+type Filter struct {
+	Reason   string `yaml:"reason"`
+	Message  string `yaml:"message"`
+	MinCount int32  `yaml:"min-count"`
+	Type     string `yaml:"type"`
+	Action   string `yaml:"action"`
+
+	Kind      string `yaml:"kind"`
+	Namespace string `yaml:"namespace"`
+	Name      string `yaml:"name"`
+
+	Exporter string `yaml:"exporter"`
+}
diff --git a/cmd/root.go b/pkg/k8s/client.go
similarity index 50%
copy from cmd/root.go
copy to pkg/k8s/client.go
index 1874aad..c80ed9a 100644
--- a/cmd/root.go
+++ b/pkg/k8s/client.go
@@ -17,36 +17,33 @@
  * under the License.
  */
 
-package main
+package k8s
 
 import (
-	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
-	"github.com/sirupsen/logrus"
-	"github.com/spf13/cobra"
-)
+	"os"
+	"path/filepath"
 
-var (
-	verbosity  string
-	configFile string
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
+	"k8s.io/client-go/tools/clientcmd"
 )
 
-var rootCmd = &cobra.Command{
-	Use:           "skywalking-kubernetes-event-exporter",
-	Long:          "Export Kubernetes events to Apache SkyWalking",
-	SilenceUsage:  true,
-	SilenceErrors: true,
-	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
-		level, err := logrus.ParseLevel(verbosity)
-		if err != nil {
-			return err
-		}
-		logger.Log.SetLevel(level)
-
-		return nil
-	},
+func GetClient() (*kubernetes.Clientset, error) {
+	if config, err := GetConfig(); err != nil {
+		return nil, err
+	} else {
+		return kubernetes.NewForConfig(config)
+	}
 }
 
-func init() {
-	rootCmd.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
-	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "config.yaml", "the config file")
+// GetConfig returns the configuration to connect to the Kubernetes API server.
+func GetConfig() (*rest.Config, error) {
+	if config, err := rest.InClusterConfig(); err == nil {
+		return config, nil
+	} else if err != rest.ErrNotInCluster {
+		return nil, err
+	}
+
+	// Not in cluster, try other conventional config
+	return clientcmd.BuildConfigFromFlags("", filepath.Join(os.Getenv("HOME"), ".kube", "config"))
 }
diff --git a/pkg/k8s/event.go b/pkg/k8s/event.go
new file mode 100644
index 0000000..47b7f2c
--- /dev/null
+++ b/pkg/k8s/event.go
@@ -0,0 +1,73 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 k8s
+
+import (
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/cache"
+)
+
+type EventWatcher struct {
+	Events   chan *v1.Event
+	informer cache.SharedIndexInformer
+	stopCh   chan struct{}
+}
+
+func (w EventWatcher) OnAdd(obj interface{}) {
+	w.Events <- obj.(*v1.Event)
+}
+
+func (w EventWatcher) OnUpdate(_, newObj interface{}) {
+	w.Events <- newObj.(*v1.Event)
+}
+
+func (w EventWatcher) OnDelete(_ interface{}) {
+}
+
+func (w EventWatcher) Start() {
+	go w.informer.Run(w.stopCh)
+}
+
+func (w EventWatcher) Stop() {
+	w.stopCh <- struct{}{}
+	close(w.stopCh)
+}
+
+func WatchEvents(ns string) (*EventWatcher, error) {
+	config, err := GetConfig()
+	if err != nil {
+		return nil, err
+	}
+	client := kubernetes.NewForConfigOrDie(config)
+	factory := informers.NewSharedInformerFactoryWithOptions(client, 0, informers.WithNamespace(ns))
+	informer := factory.Core().V1().Events().Informer()
+
+	watcher := &EventWatcher{
+		informer: informer,
+		Events:   make(chan *v1.Event),
+		stopCh:   make(chan struct{}),
+	}
+
+	informer.AddEventHandler(watcher)
+
+	return watcher, nil
+}
diff --git a/pkg/pipe/pipe.go b/pkg/pipe/pipe.go
new file mode 100644
index 0000000..5b15565
--- /dev/null
+++ b/pkg/pipe/pipe.go
@@ -0,0 +1,115 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 pipe
+
+import (
+	"fmt"
+
+	"github.com/apache/skywalking-kubernetes-event-exporter/configs"
+	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/event"
+	exp "github.com/apache/skywalking-kubernetes-event-exporter/pkg/exporter"
+	"github.com/apache/skywalking-kubernetes-event-exporter/pkg/k8s"
+	v1 "k8s.io/api/core/v1"
+)
+
+type workflow struct {
+	filter   *configs.FilterConfig
+	exporter exp.Exporter
+	events   chan *v1.Event
+}
+
+type Pipe struct {
+	Watcher   *k8s.EventWatcher
+	workflows []workflow
+	stopper   chan struct{}
+}
+
+func (p *Pipe) Init() error {
+	p.stopper = make(chan struct{})
+	p.workflows = []workflow{}
+
+	initialized := map[string]bool{}
+	for _, filter := range configs.GlobalConfig.Filters {
+		if _, ok := configs.GlobalConfig.Exporters[filter.Exporter]; !ok {
+			return fmt.Errorf("exporter %v is not defined", filter.Exporter)
+		}
+		exporter := exp.GetExporter(filter.Exporter)
+		if exporter == nil {
+			return fmt.Errorf("exporter %v is not defined", filter.Exporter)
+		}
+		if initialized[filter.Exporter] {
+			continue
+		}
+		if err := exporter.Init(); err != nil {
+			return err
+		}
+		initialized[filter.Exporter] = true
+
+		events := make(chan *v1.Event)
+
+		p.workflows = append(p.workflows, workflow{
+			filter:   filter,
+			exporter: exporter,
+			events:   events,
+		})
+	}
+
+	return nil
+}
+
+func (p *Pipe) Start() error {
+	p.Watcher.Start()
+
+	for _, wkfl := range p.workflows {
+		go wkfl.exporter.Export(wkfl.events)
+	}
+
+	for stopped := false; !stopped; {
+		select {
+		case <-p.stopper:
+			for _, w := range p.workflows {
+				w.events <- event.Stopper
+			}
+			stopped = true
+		case e := <-p.Watcher.Events:
+			for _, w := range p.workflows {
+				if w.filter.Filter(e) {
+					continue
+				}
+				w.events <- e
+			}
+		}
+	}
+
+	return nil
+}
+
+func (p *Pipe) Stop() {
+	p.Watcher.Stop()
+
+	for _, w := range p.workflows {
+		logger.Log.Debugf("stopping exporter %+v.", w.exporter.Name())
+		w.exporter.Stop()
+	}
+
+	p.stopper <- struct{}{}
+	close(p.stopper)
+}

[skywalking-kubernetes-event-exporter] 01/02: Initialize project

Posted by ke...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

kezhenxu94 pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/skywalking-kubernetes-event-exporter.git

commit 81dc62c9f5f8cef77e4a2eb5aadcc85cc41613c9
Author: kezhenxu94 <ke...@apache.org>
AuthorDate: Tue Mar 23 18:30:41 2021 +0800

    Initialize project
---
 .asf.yaml                  |  33 ++++
 .gitignore                 |  19 ++
 Makefile                   | 107 +++++++++++
 README.md                  |   1 +
 cmd/main.go                |  33 ++++
 cmd/root.go                |  52 ++++++
 cmd/version.go             |  40 ++++
 go.mod                     |   8 +
 go.sum                     | 446 +++++++++++++++++++++++++++++++++++++++++++++
 internal/pkg/logger/log.go |  40 ++++
 10 files changed, 779 insertions(+)

diff --git a/.asf.yaml b/.asf.yaml
new file mode 100644
index 0000000..40fd72c
--- /dev/null
+++ b/.asf.yaml
@@ -0,0 +1,33 @@
+# Licensed to Apache Software Foundation (ASF) under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Apache Software Foundation (ASF) licenses this file to you 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.
+# 
+
+github:
+  description: Export Kubernetes events to Apache SkyWalking OAP.
+  homepage: https://skywalking.apache.org/
+  labels:
+    - skywalking
+    - kubernetes
+  protected_branches:
+    main:
+      required_status_checks:
+        strict: true
+        contexts:
+          - Gateway
+      required_pull_request_reviews:
+        dismiss_stale_reviews: true
+        required_approving_review_count: 1
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3962ab6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+.idea
+coverage.txt
+bin
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..32ce3bd
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,107 @@
+# Licensed to Apache Software Foundation (ASF) under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Apache Software Foundation (ASF) licenses this file to you 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.
+#
+
+APP = skywalking-kubernetes-event-exporter
+VERSION ?= latest
+OUT_DIR = bin
+ARCH := $(shell uname)
+OSNAME := $(if $(findstring Darwin,$(ARCH)),darwin,linux)
+
+GO := GO111MODULE=on go
+GO_PATH = $(shell $(GO) env GOPATH)
+GO_BUILD = $(GO) build
+GO_TEST = $(GO) test
+GO_LINT = $(GO_PATH)/bin/golangci-lint
+GO_BUILD_LDFLAGS = -X main.version=$(VERSION)
+
+PLATFORMS := windows linux darwin
+os = $(word 1, $@)
+ARCH = amd64
+
+RELEASE_BIN = $(APP)-$(VERSION)-bin
+RELEASE_SRC = $(APP)-$(VERSION)-src
+
+all: clean lint license test build
+
+.PHONY: lint
+lint:
+	$(GO_LINT) version || curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GO_PATH)/bin
+	$(GO_LINT) run -v ./...
+
+.PHONY: fix-lint
+fix-lint:
+	$(GO_LINT) run -v --fix ./...
+
+.PHONY: license
+license: clean
+	echo "TODO"
+
+.PHONY: test
+test: clean
+	$(GO_TEST) ./... -coverprofile=coverage.txt -covermode=atomic
+	@>&2 echo "Great, all tests passed."
+
+.PHONY: $(PLATFORMS)
+$(PLATFORMS):
+	mkdir -p $(OUT_DIR)
+	GOOS=$(os) GOARCH=$(ARCH) $(GO_BUILD) $(GO_BUILD_FLAGS) -ldflags "$(GO_BUILD_LDFLAGS)" -o $(OUT_DIR)/$(os)/$(APP) cmd/*.go
+
+.PHONY: build
+build: windows linux darwin
+
+.PHONY: docker
+docker:
+	docker build . -t $(APP):$(VERSION)
+
+.PHONY: clean
+clean:
+	-rm -rf bin
+	-rm -rf assets/*.gen.go
+	-rm -rf coverage.txt
+	-rm -rf "$(RELEASE_BIN)"*
+	-rm -rf "$(RELEASE_SRC)"*
+
+.PHONY: verify
+verify: clean license lint test
+
+release-src: clean
+	-tar -zcvf $(RELEASE_SRC).tgz \
+	--exclude bin \
+	--exclude .git \
+	--exclude .idea \
+	--exclude .DS_Store \
+	--exclude .github \
+	--exclude $(RELEASE_SRC).tgz \
+	--exclude query-protocol/schema.graphqls \
+	.
+
+release-bin: build
+	-mkdir $(RELEASE_BIN)
+	-cp -R bin $(RELEASE_BIN)
+	-cp -R dist/* $(RELEASE_BIN)
+	-cp -R CHANGES.md $(RELEASE_BIN)
+	-cp -R README.adoc $(RELEASE_BIN)
+	-cp -R ../NOTICE $(RELEASE_BIN)
+	-tar -zcvf $(RELEASE_BIN).tgz $(RELEASE_BIN)
+	-rm -rf "$(RELEASE_BIN)"
+
+release: verify release-src release-bin
+	gpg --batch --yes --armor --detach-sig $(RELEASE_SRC).tgz
+	shasum -a 512 $(RELEASE_SRC).tgz > $(RELEASE_SRC).tgz.sha512
+	gpg --batch --yes --armor --detach-sig $(RELEASE_BIN).tgz
+	shasum -a 512 $(RELEASE_BIN).tgz > $(RELEASE_BIN).tgz.sha512
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..df30b5d
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+# Kubernetes Event Exporter
diff --git a/cmd/main.go b/cmd/main.go
new file mode 100644
index 0000000..dfaec0d
--- /dev/null
+++ b/cmd/main.go
@@ -0,0 +1,33 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 main
+
+import (
+	"os"
+
+	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
+)
+
+func main() {
+	if err := rootCmd.Execute(); err != nil {
+		logger.Log.Errorln(err)
+		os.Exit(1)
+	}
+}
diff --git a/cmd/root.go b/cmd/root.go
new file mode 100644
index 0000000..1874aad
--- /dev/null
+++ b/cmd/root.go
@@ -0,0 +1,52 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 main
+
+import (
+	"github.com/apache/skywalking-kubernetes-event-exporter/internal/pkg/logger"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+var (
+	verbosity  string
+	configFile string
+)
+
+var rootCmd = &cobra.Command{
+	Use:           "skywalking-kubernetes-event-exporter",
+	Long:          "Export Kubernetes events to Apache SkyWalking",
+	SilenceUsage:  true,
+	SilenceErrors: true,
+	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+		level, err := logrus.ParseLevel(verbosity)
+		if err != nil {
+			return err
+		}
+		logger.Log.SetLevel(level)
+
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
+	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "config.yaml", "the config file")
+}
diff --git a/cmd/version.go b/cmd/version.go
new file mode 100644
index 0000000..ab11a17
--- /dev/null
+++ b/cmd/version.go
@@ -0,0 +1,40 @@
+/*
+ * Licensed to Apache Software Foundation (ASF) under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Apache Software Foundation (ASF) licenses this file to you 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 main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var version string
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version of skywalking-kubernetes-event-exporter",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(version)
+	},
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..1c56603
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,8 @@
+module github.com/apache/skywalking-kubernetes-event-exporter
+
+go 1.16
+
+require (
+	github.com/sirupsen/logrus v1.8.1
+	github.com/spf13/cobra v1.1.3
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0b305ad
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,446 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
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diff --git a/internal/pkg/logger/log.go b/internal/pkg/logger/log.go
new file mode 100644
index 0000000..0727ee4
--- /dev/null
+++ b/internal/pkg/logger/log.go
@@ -0,0 +1,40 @@
+// Licensed to Apache Software Foundation (ASF) under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Apache Software Foundation (ASF) licenses this file to you 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 logger
+
+import (
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+var Log *logrus.Logger
+
+func init() {
+	if Log == nil {
+		Log = logrus.New()
+	}
+	Log.Level = logrus.DebugLevel
+	Log.SetOutput(os.Stdout)
+	Log.SetFormatter(&logrus.TextFormatter{
+		DisableTimestamp:       true,
+		DisableLevelTruncation: true,
+		ForceColors:            true,
+	})
+}