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Posted to notifications@skywalking.apache.org by ke...@apache.org on 2021/02/02 02:58:02 UTC

[skywalking-infra-e2e] branch main updated: Add setup and wait according to e2e.yaml (#3)

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-infra-e2e.git


The following commit(s) were added to refs/heads/main by this push:
     new 007cb03  Add setup and wait according to e2e.yaml (#3)
007cb03 is described below

commit 007cb036f10707f1534713dd639f27156adc3ee7
Author: Humbertzhang <50...@qq.com>
AuthorDate: Tue Feb 2 10:57:54 2021 +0800

    Add setup and wait according to e2e.yaml (#3)
---
 LICENSE                                         |   5 +
 Makefile                                        |   2 +-
 commands/cleanup/cleanup.go                     |  38 ++--
 commands/root.go                                |  14 +-
 commands/setup/setup.go                         |  44 +++--
 dist/LICENSE                                    |  15 ++
 dist/licenses/LICENSE-mergo.txt                 |  28 +++
 examples/simple/busybox1.yaml                   |  30 +++
 examples/simple/e2e.yaml                        |  34 ++++
 examples/simple/kind.yaml                       |  44 +++++
 examples/simple/manifests/busybox2.yaml         |  30 +++
 examples/simple/manifests/deep/busybox3.yaml    |  30 +++
 go.mod                                          |   7 +
 go.sum                                          | 247 ++++++++++++++++++++++++
 internal/components/cleanup/kind.go             |  36 ++--
 internal/components/setup/kind.go               | 174 ++++++++++++++++-
 internal/{util/which.go => config/e2eConfig.go} |  34 +++-
 internal/config/globalConfig.go                 |  69 +++++++
 internal/constant/kind.go                       |  17 +-
 internal/util/k8s.go                            | 166 ++++++++++++++++
 internal/util/restClientGetter.go               |  83 ++++++++
 internal/{flags/setup.go => util/waitSet.go}    |  25 ++-
 internal/util/which.go                          |  14 +-
 23 files changed, 1114 insertions(+), 72 deletions(-)

diff --git a/LICENSE b/LICENSE
index c839e59..01bcc53 100644
--- a/LICENSE
+++ b/LICENSE
@@ -220,6 +220,11 @@ The text of each license is the standard Apache 2.0 license.
     cobra v1.1.1: https://github.com/spf13/cobra Apache 2.0
     kind v0.9.0: https://github.com/kubernetes-sigs/kind Apache 2.0
     yaml v2.3.0: https://github.com/go-yaml/yaml Apache 2.0
+    api v0.19.0: https://github.com/kubernetes/api Apache 2.0
+    apimachinery v0.19.0: https://github.com/kubernetes/apimachinery Apache 2.0
+    cli-runtime v0.19.0: https://github.com/kubernetes/cli-runtime Apache 2.0
+    client-go v0.19.0: https://github.com/kubernetes/client-go Apache 2.0
+    kubectl v0.19.0: https://github.com/kubernetes/kubectl Apache 2.0
 
 ========================================================================
 MIT licenses
diff --git a/Makefile b/Makefile
index 09c0fc8..c1db858 100644
--- a/Makefile
+++ b/Makefile
@@ -41,7 +41,7 @@ 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 ./...
+	$(GO_LINT) run -v --timeout 5m ./...
 
 .PHONY: fix-lint
 fix-lint:
diff --git a/commands/cleanup/cleanup.go b/commands/cleanup/cleanup.go
index 5ad5f29..d5d2024 100644
--- a/commands/cleanup/cleanup.go
+++ b/commands/cleanup/cleanup.go
@@ -20,35 +20,41 @@ package cleanup
 import (
 	"fmt"
 
+	"github.com/apache/skywalking-infra-e2e/internal/config"
+
 	"github.com/apache/skywalking-infra-e2e/internal/components/cleanup"
 
 	"github.com/spf13/cobra"
 
 	"github.com/apache/skywalking-infra-e2e/internal/constant"
 	"github.com/apache/skywalking-infra-e2e/internal/logger"
-
-	"github.com/apache/skywalking-infra-e2e/internal/flags"
 )
 
-func init() {
-	Cleanup.Flags().StringVar(&flags.Env, "env", "kind", "specify test environment")
-	Cleanup.Flags().StringVar(&flags.File, "file", "kind.yaml", "specify configuration file")
-}
-
 var Cleanup = &cobra.Command{
 	Use:   "cleanup",
 	Short: "",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		if flags.Env == constant.Compose {
-			logger.Log.Info("env for docker-compose not implemented")
-		} else if flags.Env == constant.Kind {
-			if err := cleanup.KindCleanupInCommand(); err != nil {
-				return err
-			}
-		} else {
-			return fmt.Errorf("no such env for cleanup: [%s]. should use kind or compose instead", flags.Env)
+		err := cleanupAccordingE2E()
+		if err != nil {
+			err = fmt.Errorf("[Cleanup] %s", err)
+			return err
 		}
-
 		return nil
 	},
 }
+
+func cleanupAccordingE2E() error {
+	e2eConfig := config.GlobalConfig.E2EConfig
+	if e2eConfig.Setup.Env == constant.Kind {
+		err := cleanup.KindCleanUp(&e2eConfig)
+		if err != nil {
+			return err
+		}
+	} else if e2eConfig.Setup.Env == constant.Compose {
+		logger.Log.Info("env for docker-compose not implemented")
+	} else {
+		return fmt.Errorf("no such env for cleanup: [%s]. should use kind or compose instead", e2eConfig.Setup.Env)
+	}
+
+	return nil
+}
diff --git a/commands/root.go b/commands/root.go
index b4cc8b7..81f2899 100644
--- a/commands/root.go
+++ b/commands/root.go
@@ -18,13 +18,16 @@
 package commands
 
 import (
+	"github.com/spf13/cobra"
+
+	"github.com/apache/skywalking-infra-e2e/internal/config"
+	"github.com/apache/skywalking-infra-e2e/internal/constant"
+
 	"github.com/apache/skywalking-infra-e2e/commands/cleanup"
 	"github.com/apache/skywalking-infra-e2e/commands/run"
 	"github.com/apache/skywalking-infra-e2e/commands/setup"
 	"github.com/apache/skywalking-infra-e2e/commands/trigger"
 	"github.com/apache/skywalking-infra-e2e/commands/verify"
-
-	"github.com/spf13/cobra"
 )
 
 // Root represents the base command when called without any subcommands
@@ -34,6 +37,13 @@ var Root = &cobra.Command{
 	Version:       version,
 	SilenceErrors: true,
 	SilenceUsage:  true,
+	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+		err := config.ReadGlobalConfigFile(constant.E2EDefaultFile)
+		if err != nil {
+			return err
+		}
+		return nil
+	},
 }
 
 // Execute adds all child commands to the root command and sets flags appropriately.
diff --git a/commands/setup/setup.go b/commands/setup/setup.go
index 3e77ab1..b1f9f7c 100644
--- a/commands/setup/setup.go
+++ b/commands/setup/setup.go
@@ -15,43 +15,49 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
+
 package setup
 
 import (
 	"fmt"
 
+	"github.com/apache/skywalking-infra-e2e/internal/config"
+
 	"github.com/apache/skywalking-infra-e2e/internal/constant"
 
 	"github.com/spf13/cobra"
 
 	"github.com/apache/skywalking-infra-e2e/internal/components/setup"
 	"github.com/apache/skywalking-infra-e2e/internal/logger"
-	"github.com/apache/skywalking-infra-e2e/internal/util"
-
-	"github.com/apache/skywalking-infra-e2e/internal/flags"
 )
 
-func init() {
-	Setup.Flags().StringVar(&flags.Env, "env", "kind", "specify test environment")
-	Setup.Flags().StringVar(&flags.File, "file", "kind.yaml", "specify configuration file")
-}
-
 var Setup = &cobra.Command{
 	Use:   "setup",
 	Short: "",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		if flags.Env == constant.Compose {
-			if util.Which(constant.ComposeCommand) != nil {
-				return fmt.Errorf("command %s not found in the PATH", constant.ComposeCommand)
-			}
-			logger.Log.Info("env for docker-compose not implemented")
-		} else if flags.Env == constant.Kind {
-			if err := setup.KindSetupInCommand(); err != nil {
-				return err
-			}
-		} else {
-			return fmt.Errorf("no such env for setup: [%s]. should use kind or compose instead", flags.Env)
+		err := setupAccordingE2E()
+		if err != nil {
+			err = fmt.Errorf("[Setup] %s", err)
+			return err
 		}
 		return nil
 	},
 }
+
+func setupAccordingE2E() error {
+	e2eConfig := config.GlobalConfig.E2EConfig
+
+	if e2eConfig.Setup.Env == constant.Kind {
+		err := setup.KindSetup(&e2eConfig)
+		if err != nil {
+			return err
+		}
+	} else if e2eConfig.Setup.Env == constant.Compose {
+		logger.Log.Warn("env for docker-compose not implemented")
+		return nil
+	} else {
+		return fmt.Errorf("no such env for setup: [%s]. should use kind or compose instead", e2eConfig.Setup.Env)
+	}
+
+	return nil
+}
diff --git a/dist/LICENSE b/dist/LICENSE
index c839e59..738f81c 100644
--- a/dist/LICENSE
+++ b/dist/LICENSE
@@ -220,6 +220,12 @@ The text of each license is the standard Apache 2.0 license.
     cobra v1.1.1: https://github.com/spf13/cobra Apache 2.0
     kind v0.9.0: https://github.com/kubernetes-sigs/kind Apache 2.0
     yaml v2.3.0: https://github.com/go-yaml/yaml Apache 2.0
+    api v0.19.0: https://github.com/kubernetes/api Apache 2.0
+    apimachinery v0.19.0: https://github.com/kubernetes/apimachinery Apache 2.0
+    cli-runtime v0.19.0: https://github.com/kubernetes/cli-runtime Apache 2.0
+    client-go v0.19.0 https://github.com/kubernetes/client-go Apache 2.0
+    kubectl v0.19.0: https://github.com/kubernetes/kubectl Apache 2.0
+    utils v0.0.0-20201110183641-67b214c5f920: https://github.com/kubernetes/utils Apache 2.0
 
 ========================================================================
 MIT licenses
@@ -229,3 +235,12 @@ The following components are provided under the MIT license. See project link fo
 The text of each license is also included at licenses/LICENSE-[project].txt.
 
     logrus 1.7.0: https://github.com/sirupsen/logrus MIT
+
+========================================================================
+BSD 3-Clause licenses
+========================================================================
+
+The following components are provided under the BSD 3-Clause license. See project link for details.
+The text of each license is also included at licenses/LICENSE-[project].txt.
+
+    mergo v0.3.11: https://github.com/imdario/mergo BSD-3-Clause
diff --git a/dist/licenses/LICENSE-mergo.txt b/dist/licenses/LICENSE-mergo.txt
new file mode 100644
index 0000000..6866802
--- /dev/null
+++ b/dist/licenses/LICENSE-mergo.txt
@@ -0,0 +1,28 @@
+Copyright (c) 2013 Dario Castañé. All rights reserved.
+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.
diff --git a/examples/simple/busybox1.yaml b/examples/simple/busybox1.yaml
new file mode 100644
index 0000000..f3e2c8c
--- /dev/null
+++ b/examples/simple/busybox1.yaml
@@ -0,0 +1,30 @@
+# Licensed to the 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.
+# The 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.
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: busybox1
+  labels:
+    app: busybox1
+spec:
+  containers:
+  - image: busybox
+    command:
+      - sleep
+      - "3600"
+    imagePullPolicy: IfNotPresent
+    name: busybox
+  restartPolicy: Always
diff --git a/examples/simple/e2e.yaml b/examples/simple/e2e.yaml
new file mode 100644
index 0000000..181cd9c
--- /dev/null
+++ b/examples/simple/e2e.yaml
@@ -0,0 +1,34 @@
+# Licensed to the 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.
+# The 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.
+
+setup:
+  env: kind
+  file: kind.yaml
+  manifests:
+    - path: busybox1.yaml
+      wait: 
+        - namespace: default
+          resource: pod/busybox1 
+          for: condition=Ready
+    - path: manifests
+      wait:
+        - namespace: default
+          resource: pod
+          label-selector: app=busybox2
+          for: condition=Ready
+        - namespace: default
+          resource: pod
+          for: condition=Ready
+  timeout: 600
diff --git a/examples/simple/kind.yaml b/examples/simple/kind.yaml
new file mode 100644
index 0000000..0c53602
--- /dev/null
+++ b/examples/simple/kind.yaml
@@ -0,0 +1,44 @@
+# Licensed to the 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.
+# The 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.
+
+# this config file contains all config fields with comments
+# NOTE: this is not a particularly useful config file
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+# patch the generated kubeadm config with some extra settings
+kubeadmConfigPatches:
+- |
+  apiVersion: kubelet.config.k8s.io/v1beta1
+  kind: KubeletConfiguration
+  evictionHard:
+    nodefs.available: "0%"
+# patch it further using a JSON 6902 patch
+kubeadmConfigPatchesJSON6902:
+- group: kubeadm.k8s.io
+  version: v1beta2
+  kind: ClusterConfiguration
+  patch: |
+    - op: add
+      path: /apiServer/certSANs/-
+      value: my-hostname
+# 1 control plane node and 3 workers
+nodes:
+# the control plane node config
+- role: control-plane
+# the three workers
+- role: worker
+- role: worker
+- role: worker
+
diff --git a/examples/simple/manifests/busybox2.yaml b/examples/simple/manifests/busybox2.yaml
new file mode 100644
index 0000000..15ec7a9
--- /dev/null
+++ b/examples/simple/manifests/busybox2.yaml
@@ -0,0 +1,30 @@
+# Licensed to the 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.
+# The 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.
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: busybox2
+  labels:
+    app: busybox2
+spec:
+  containers:
+  - image: busybox
+    command:
+      - sleep
+      - "3600"
+    imagePullPolicy: IfNotPresent
+    name: busybox
+  restartPolicy: Always
diff --git a/examples/simple/manifests/deep/busybox3.yaml b/examples/simple/manifests/deep/busybox3.yaml
new file mode 100644
index 0000000..83563ba
--- /dev/null
+++ b/examples/simple/manifests/deep/busybox3.yaml
@@ -0,0 +1,30 @@
+# Licensed to the 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.
+# The 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.
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: busybox3
+  labels:
+    app: busybox3
+spec:
+  containers:
+  - image: busybox
+    command:
+      - sleep
+      - "3600"
+    imagePullPolicy: IfNotPresent
+    name: busybox
+  restartPolicy: Always
diff --git a/go.mod b/go.mod
index 448ac42..34c64d6 100644
--- a/go.mod
+++ b/go.mod
@@ -3,8 +3,15 @@ module github.com/apache/skywalking-infra-e2e
 go 1.13
 
 require (
+	github.com/imdario/mergo v0.3.11 // indirect
 	github.com/sirupsen/logrus v1.7.0
 	github.com/spf13/cobra v1.1.1
 	gopkg.in/yaml.v2 v2.3.0
+	k8s.io/api v0.19.0
+	k8s.io/apimachinery v0.19.0
+	k8s.io/cli-runtime v0.19.0
+	k8s.io/client-go v0.19.0
+	k8s.io/kubectl v0.19.0
+	k8s.io/utils v0.0.0-20201110183641-67b214c5f920 // indirect
 	sigs.k8s.io/kind v0.9.0
 )
diff --git a/go.sum b/go.sum
index f9800b9..42b87a9 100644
--- a/go.sum
+++ b/go.sum
@@ -5,21 +5,43 @@ cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6A
 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/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
+github.com/Azure/go-autorest/autorest v0.9.6/go.mod h1:/FALq9T/kS7b5J5qsQ+RSTUdAmGFqi0vUdVNNx8q630=
+github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
+github.com/Azure/go-autorest/autorest/adal v0.8.2/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
+github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
+github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
+github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
+github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
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@@ -189,21 +314,33 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
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@@ -212,6 +349,7 @@ github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4k
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
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@@ -227,6 +365,7 @@ github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/y
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@@ -237,10 +376,13 @@ github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69
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@@ -250,11 +392,17 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
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@@ -264,10 +412,14 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
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@@ -284,18 +436,29 @@ golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -363,46 +554,102 @@ google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98
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diff --git a/internal/components/cleanup/kind.go b/internal/components/cleanup/kind.go
index 2edb665..2f7c33a 100644
--- a/internal/components/cleanup/kind.go
+++ b/internal/components/cleanup/kind.go
@@ -20,6 +20,9 @@ package cleanup
 
 import (
 	"io/ioutil"
+	"os"
+
+	"github.com/apache/skywalking-infra-e2e/internal/config"
 
 	"gopkg.in/yaml.v2"
 	kind "sigs.k8s.io/kind/cmd/kind/app"
@@ -28,29 +31,36 @@ import (
 	"strings"
 
 	"github.com/apache/skywalking-infra-e2e/internal/constant"
-	"github.com/apache/skywalking-infra-e2e/internal/flags"
 	"github.com/apache/skywalking-infra-e2e/internal/logger"
 )
 
-var (
-	kindConfigFile string
-)
-
 type KindClusterNameConfig struct {
 	Name string
 }
 
-func KindCleanupInCommand() error {
-	kindConfigFile = flags.File
+func KindCleanUp(e2eConfig *config.E2EConfig) error {
+	kindConfigFilePath := e2eConfig.Setup.File
+
+	logger.Log.Info("deleting kind cluster...")
+	if err := cleanKindCluster(kindConfigFilePath); err != nil {
+		logger.Log.Error("delete kind cluster failed")
+		return err
+	}
+	logger.Log.Info("delete kind cluster succeeded")
 
-	if err := cleanKindCluster(); err != nil {
+	k8sConfigFile := constant.K8sClusterConfigFile
+	logger.Log.Infof("deleting k8s cluster config file:%s", k8sConfigFile)
+	err := os.Remove(k8sConfigFile)
+	if err != nil {
+		logger.Log.Errorf("delete k8s cluster config file failed")
 		return err
 	}
+
 	return nil
 }
 
-func getKindClusterName() (name string, err error) {
-	data, err := ioutil.ReadFile(kindConfigFile)
+func getKindClusterName(kindConfigFilePath string) (name string, err error) {
+	data, err := ioutil.ReadFile(kindConfigFilePath)
 	if err != nil {
 		return "", err
 	}
@@ -68,20 +78,18 @@ func getKindClusterName() (name string, err error) {
 	return nameConfig.Name, nil
 }
 
-func cleanKindCluster() error {
-	clusterName, err := getKindClusterName()
+func cleanKindCluster(kindConfigFilePath string) error {
+	clusterName, err := getKindClusterName(kindConfigFilePath)
 	if err != nil {
 		return err
 	}
 
 	args := []string{"delete", "cluster", "--name", clusterName}
 
-	logger.Log.Info("deleting kind cluster...")
 	logger.Log.Debugf("cluster delete commands: %s %s", constant.KindCommand, strings.Join(args, " "))
 	if err := kind.Run(kindcmd.NewLogger(), kindcmd.StandardIOStreams(), args); err != nil {
 		return err
 	}
-	logger.Log.Info("delete kind cluster succeeded")
 
 	return nil
 }
diff --git a/internal/components/setup/kind.go b/internal/components/setup/kind.go
index 1532e74..96e5edd 100644
--- a/internal/components/setup/kind.go
+++ b/internal/components/setup/kind.go
@@ -19,32 +19,83 @@
 package setup
 
 import (
+	"fmt"
+	"io/ioutil"
+	"os"
 	"strings"
+	"time"
+
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	ctlwait "k8s.io/kubectl/pkg/cmd/wait"
+
+	"k8s.io/client-go/dynamic"
+	"k8s.io/client-go/kubernetes"
+
+	"github.com/apache/skywalking-infra-e2e/internal/config"
+
+	apiv1 "k8s.io/api/admission/v1"
+
+	"github.com/apache/skywalking-infra-e2e/internal/util"
 
 	kind "sigs.k8s.io/kind/cmd/kind/app"
 	kindcmd "sigs.k8s.io/kind/pkg/cmd"
 
 	"github.com/apache/skywalking-infra-e2e/internal/constant"
 
-	"github.com/apache/skywalking-infra-e2e/internal/flags"
 	"github.com/apache/skywalking-infra-e2e/internal/logger"
 )
 
 var (
-	kindConfigFile string
+	kindConfigPath string
+	kubeConfigPath string
 )
 
-func KindSetupInCommand() error {
-	kindConfigFile = flags.File
+// KindSetup sets up environment according to e2e.yaml.
+func KindSetup(e2eConfig *config.E2EConfig) error {
+	kindConfigPath = e2eConfig.Setup.File
+
+	if kindConfigPath == "" {
+		return fmt.Errorf("no kind config file was provided")
+	}
 
-	if err := createKindCluster(); err != nil {
+	manifests := e2eConfig.Setup.Manifests
+	// if no manifests was provided, then no need to create the cluster.
+	if manifests == nil {
+		logger.Log.Info("no manifests is provided")
+		return nil
+	}
+
+	timeout := e2eConfig.Setup.Timeout
+	var waitTimeout time.Duration
+	if timeout <= 0 {
+		waitTimeout = constant.DefaultWaitTimeout
+	} else {
+		waitTimeout = time.Duration(timeout) * time.Second
+	}
+
+	logger.Log.Debugf("wait timeout is %d seconds", int(waitTimeout.Seconds()))
+
+	if err := createKindCluster(kindConfigPath); err != nil {
+		return err
+	}
+
+	c, dc, err := util.ConnectToK8sCluster(kubeConfigPath)
+	if err != nil {
+		logger.Log.Errorf("connect to k8s cluster failed according to config file: %s", kubeConfigPath)
+		return err
+	}
+
+	err = createManifestsAndWait(c, dc, manifests, waitTimeout)
+	if err != nil {
 		return err
 	}
 	return nil
 }
 
-func createKindCluster() error {
-	args := []string{"create", "cluster", "--config", kindConfigFile}
+func createKindCluster(kindConfigPath string) error {
+	// the config file name of the k8s cluster that kind create
+	kubeConfigPath = constant.K8sClusterConfigFile
+	args := []string{"create", "cluster", "--config", kindConfigPath, "--kubeconfig", kubeConfigPath}
 
 	logger.Log.Info("creating kind cluster...")
 	logger.Log.Debugf("cluster create commands: %s %s", constant.KindCommand, strings.Join(args, " "))
@@ -54,3 +105,112 @@ func createKindCluster() error {
 	logger.Log.Info("create kind cluster succeeded")
 	return nil
 }
+
+// createManifestsAndWait creates manifests in k8s cluster and concurrent waits according to the manifests' wait conditions.
+func createManifestsAndWait(c *kubernetes.Clientset, dc dynamic.Interface, manifests []config.Manifest, timeout time.Duration) error {
+	waitSet := util.NewWaitSet(timeout)
+
+	kubeConfigYaml, err := ioutil.ReadFile(kubeConfigPath)
+	if err != nil {
+		return err
+	}
+
+	for idx := range manifests {
+		manifest := manifests[idx]
+		waits := manifest.Waits
+		err := createByManifest(c, dc, manifest)
+		if err != nil {
+			return err
+		}
+
+		// len() for nil slices is defined as zero
+		if len(waits) == 0 {
+			logger.Log.Info("no wait-for strategy is provided")
+			continue
+		}
+
+		for _, wait := range waits {
+			if strings.Contains(wait.Resource, "/") && wait.LabelSelector != "" {
+				return fmt.Errorf("when passing resource.group/resource.name in Resource, the labelSelector can not be set at the same time")
+			}
+
+			restClientGetter := util.NewSimpleRESTClientGetter(wait.Namespace, string(kubeConfigYaml))
+			silenceOutput, _ := os.Open(os.DevNull)
+			ioStreams := genericclioptions.IOStreams{In: os.Stdin, Out: silenceOutput, ErrOut: os.Stderr}
+			waitFlags := ctlwait.NewWaitFlags(restClientGetter, ioStreams)
+			// global timeout is set in e2e.yaml
+			waitFlags.Timeout = constant.SingleDefaultWaitTimeout
+			waitFlags.ForCondition = wait.For
+
+			var args []string
+			// resource.group/resource.name OR resource.group
+			if wait.Resource != "" {
+				args = append(args, wait.Resource)
+			} else {
+				return fmt.Errorf("resource must be provided in wait block")
+			}
+
+			if wait.LabelSelector != "" {
+				waitFlags.ResourceBuilderFlags.LabelSelector = &wait.LabelSelector
+			} else if !strings.Contains(wait.Resource, "/") {
+				// if labelSelector is nil and resource only provide resource.group, check all resources.
+				waitFlags.ResourceBuilderFlags.All = &constant.True
+			}
+
+			options, err := waitFlags.ToOptions(args)
+			if err != nil {
+				return err
+			}
+
+			logger.Log.Infof("waiting for %+v", wait)
+			waitSet.WaitGroup.Add(1)
+			go concurrentlyWait(wait, options, waitSet)
+		}
+	}
+
+	go func() {
+		waitSet.WaitGroup.Wait()
+		close(waitSet.FinishChan)
+	}()
+
+	select {
+	case <-waitSet.FinishChan:
+		logger.Log.Infof("create and wait for manifests ready success")
+	case err := <-waitSet.ErrChan:
+		logger.Log.Errorf("failed to wait for manifests to be ready")
+		return err
+	case <-time.After(waitSet.Timeout):
+		return fmt.Errorf("wait for manifests ready timeout after %d seconds", int(timeout.Seconds()))
+	}
+
+	return nil
+}
+
+func createByManifest(c *kubernetes.Clientset, dc dynamic.Interface, manifest config.Manifest) error {
+	files, err := util.GetManifests(manifest.Path)
+	if err != nil {
+		logger.Log.Error("get manifests from command line argument failed")
+		return err
+	}
+
+	for _, f := range files {
+		logger.Log.Infof("creating manifest %s", f)
+		err = util.OperateManifest(c, dc, f, apiv1.Create)
+		if err != nil {
+			logger.Log.Errorf("create manifest %s failed", f)
+			return err
+		}
+	}
+	return nil
+}
+
+func concurrentlyWait(wait config.Wait, options *ctlwait.WaitOptions, waitSet *util.WaitSet) {
+	defer waitSet.WaitGroup.Done()
+
+	err := options.RunWait()
+	if err != nil {
+		err = fmt.Errorf("wait strategy :%+v, err: %s", wait, err)
+		waitSet.ErrChan <- err
+	}
+	logger.Log.Infof("wait %+v condition met", wait)
+}
diff --git a/internal/util/which.go b/internal/config/e2eConfig.go
similarity index 54%
copy from internal/util/which.go
copy to internal/config/e2eConfig.go
index b114ab6..836e582 100644
--- a/internal/util/which.go
+++ b/internal/config/e2eConfig.go
@@ -16,13 +16,35 @@
 // under the License.
 //
 
-package util
+package config
 
-import "os/exec"
+// E2EConfig corresponds to configuration file e2e.yaml.
+type E2EConfig struct {
+	Setup Setup `yaml:"setup"`
+}
+
+type Setup struct {
+	Env       string     `yaml:"env"`
+	File      string     `yaml:"file"`
+	Manifests []Manifest `yaml:"manifests"`
+	// Run is not supported yet
+	Run     []Run `yaml:"run"`
+	Timeout int   `yaml:"timeout"`
+}
 
-// Which checks if binary is present in PATH.
-func Which(binary string) error {
-	_, err := exec.LookPath(binary)
+type Manifest struct {
+	Path  string `yaml:"path"`
+	Waits []Wait `yaml:"wait"`
+}
+
+type Run struct {
+	Command string `yaml:"command"`
+	Waits   []Wait `yaml:"wait"`
+}
 
-	return err
+type Wait struct {
+	Namespace     string `yaml:"namespace"`
+	Resource      string `yaml:"resource"`
+	LabelSelector string `yaml:"label-selector"`
+	For           string `yaml:"for"`
 }
diff --git a/internal/config/globalConfig.go b/internal/config/globalConfig.go
new file mode 100644
index 0000000..91afdcb
--- /dev/null
+++ b/internal/config/globalConfig.go
@@ -0,0 +1,69 @@
+//
+// 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 config
+
+import (
+	"fmt"
+	"io/ioutil"
+
+	"github.com/apache/skywalking-infra-e2e/internal/logger"
+
+	"gopkg.in/yaml.v2"
+
+	"github.com/apache/skywalking-infra-e2e/internal/util"
+)
+
+// GlobalE2EConfig store E2EConfig which can be used globally.
+type GlobalE2EConfig struct {
+	Ready     bool
+	E2EConfig E2EConfig
+}
+
+var GlobalConfig GlobalE2EConfig
+
+func ReadGlobalConfigFile(configFilePath string) error {
+	if GlobalConfig.Ready {
+		logger.Log.Info("e2e config has been initialized")
+		return nil
+	}
+
+	e2eFile := configFilePath
+
+	if !util.PathExist(e2eFile) {
+		return fmt.Errorf("e2e config file %s not exist", e2eFile)
+	}
+
+	data, err := ioutil.ReadFile(e2eFile)
+	if err != nil {
+		return fmt.Errorf("read e2e config file %s error: %s", e2eFile, err)
+	}
+	e2eConfigObject := E2EConfig{}
+	err = yaml.Unmarshal(data, &e2eConfigObject)
+	if err != nil {
+		return fmt.Errorf("unmarshal e2e config file %s error: %s", e2eFile, err)
+	}
+	GlobalConfig.E2EConfig = e2eConfigObject
+	GlobalConfig.Ready = true
+
+	if !GlobalConfig.Ready {
+		return fmt.Errorf("e2e config read failed")
+	}
+
+	return nil
+}
diff --git a/internal/constant/kind.go b/internal/constant/kind.go
index 0af4e74..7b8586d 100644
--- a/internal/constant/kind.go
+++ b/internal/constant/kind.go
@@ -18,8 +18,19 @@
 
 package constant
 
+import "time"
+
 const (
-	Kind                   = "kind"
-	KindCommand            = "kind"
-	KindClusterDefaultName = "kind"
+	Kind                     = "kind"
+	KindCommand              = "kind"
+	KindClusterDefaultName   = "kind"
+	E2EDefaultFile           = "e2e.yaml"
+	K8sClusterConfigFile     = "e2e-k8s.config"
+	DefaultWaitTimeout       = 600 * time.Second
+	SingleDefaultWaitTimeout = 30 * 60 * time.Second
+)
+
+var (
+	True  = true
+	False = false
 )
diff --git a/internal/util/k8s.go b/internal/util/k8s.go
new file mode 100644
index 0000000..04acf71
--- /dev/null
+++ b/internal/util/k8s.go
@@ -0,0 +1,166 @@
+// 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 util
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	apiv1 "k8s.io/api/admission/v1"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/dynamic"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/serializer/yaml"
+	yamlutil "k8s.io/apimachinery/pkg/util/yaml"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/restmapper"
+	"k8s.io/client-go/tools/clientcmd"
+
+	"github.com/apache/skywalking-infra-e2e/internal/logger"
+)
+
+// ConnectToK8sCluster gets clientSet and dynamic client from k8s config file.
+func ConnectToK8sCluster(kubeConfigPath string) (c *kubernetes.Clientset, dc dynamic.Interface, err error) {
+	config, err := clientcmd.BuildConfigFromFlags("", kubeConfigPath)
+	if err != nil {
+		return nil, nil, err
+	}
+	c, err = kubernetes.NewForConfig(config)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	dc, err = dynamic.NewForConfig(config)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	logger.Log.Info("connect to k8s cluster succeeded")
+
+	return c, dc, nil
+}
+
+// GetManifests recursively gets all yml and yaml files from manifests string.
+func GetManifests(manifests string) (files []string, err error) {
+	s := make([]string, 0)
+	files = strings.Split(manifests, ",")
+	// file or directory
+	for _, f := range files {
+		fi, err := os.Stat(f)
+		if err != nil {
+			return nil, err
+		}
+
+		switch mode := fi.Mode(); {
+		case mode.IsDir():
+			err := filepath.Walk(fi.Name(), func(path string, info os.FileInfo, err error) error {
+				if err != nil {
+					return err
+				}
+				filename := info.Name()
+				if strings.HasSuffix(filename, ".yml") || strings.HasSuffix(filename, ".yaml") {
+					s = append(s, path)
+				}
+				return nil
+			})
+			if err != nil {
+				return nil, err
+			}
+		case mode.IsRegular():
+			filename := fi.Name()
+			if strings.HasSuffix(filename, ".yml") || strings.HasSuffix(filename, ".yaml") {
+				s = append(s, filename)
+			}
+		}
+	}
+	return s, nil
+}
+
+// OperateManifest operates manifest in k8s cluster which kind created.
+func OperateManifest(c *kubernetes.Clientset, dc dynamic.Interface, manifest string, operation apiv1.Operation) error {
+	b, err := ioutil.ReadFile(manifest)
+	if err != nil {
+		return err
+	}
+
+	decoder := yamlutil.NewYAMLOrJSONDecoder(bytes.NewReader(b), 100)
+	for {
+		var rawObj runtime.RawExtension
+		if err = decoder.Decode(&rawObj); err != nil {
+			break
+		}
+
+		obj, gvk, err := yaml.NewDecodingSerializer(unstructured.UnstructuredJSONScheme).Decode(rawObj.Raw, nil, nil)
+		if err != nil {
+			return err
+		}
+		unstructuredMap, err := runtime.DefaultUnstructuredConverter.ToUnstructured(obj)
+		if err != nil {
+			return err
+		}
+
+		unstructuredObj := &unstructured.Unstructured{Object: unstructuredMap}
+		apiGroupResource, err := restmapper.GetAPIGroupResources(c.Discovery())
+		if err != nil {
+			return err
+		}
+
+		mapper := restmapper.NewDiscoveryRESTMapper(apiGroupResource)
+		mapping, err := mapper.RESTMapping(gvk.GroupKind(), gvk.Version)
+		if err != nil {
+			return err
+		}
+
+		var dri dynamic.ResourceInterface
+		if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
+			// constrict resources to the default namespace
+			if unstructuredObj.GetNamespace() != "" && unstructuredObj.GetNamespace() != metav1.NamespaceDefault {
+				return fmt.Errorf("all resources must in default namespace")
+			}
+			if unstructuredObj.GetNamespace() == "" {
+				unstructuredObj.SetNamespace(metav1.NamespaceDefault)
+			}
+			dri = dc.Resource(mapping.Resource).Namespace(unstructuredObj.GetNamespace())
+		} else {
+			dri = dc.Resource(mapping.Resource)
+		}
+
+		switch operation {
+		case apiv1.Create:
+			_, err = dri.Create(context.Background(), unstructuredObj, metav1.CreateOptions{})
+		case apiv1.Delete:
+			err = dri.Delete(context.Background(), unstructuredObj.GetName(), metav1.DeleteOptions{})
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/internal/util/restClientGetter.go b/internal/util/restClientGetter.go
new file mode 100644
index 0000000..09b0236
--- /dev/null
+++ b/internal/util/restClientGetter.go
@@ -0,0 +1,83 @@
+// 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 util
+
+import (
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/client-go/discovery"
+	"k8s.io/client-go/discovery/cached/memory"
+	"k8s.io/client-go/rest"
+	"k8s.io/client-go/restmapper"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+// SimpleRESTClientGetter implements genericclioptions.RESTClientGetter,
+// so that we can use kubectl's functions just by passing kubeConfig and namespace.
+type SimpleRESTClientGetter struct {
+	Namespace  string
+	KubeConfig string
+}
+
+func NewSimpleRESTClientGetter(namespace, kubeConfig string) *SimpleRESTClientGetter {
+	return &SimpleRESTClientGetter{
+		Namespace:  namespace,
+		KubeConfig: kubeConfig,
+	}
+}
+
+func (c *SimpleRESTClientGetter) ToRESTConfig() (*rest.Config, error) {
+	config, err := clientcmd.RESTConfigFromKubeConfig([]byte(c.KubeConfig))
+	if err != nil {
+		return nil, err
+	}
+	return config, nil
+}
+
+func (c *SimpleRESTClientGetter) ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error) {
+	config, err := c.ToRESTConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	config.Burst = 100
+
+	discoveryClient, _ := discovery.NewDiscoveryClientForConfig(config)
+	return memory.NewMemCacheClient(discoveryClient), nil
+}
+
+func (c *SimpleRESTClientGetter) ToRESTMapper() (meta.RESTMapper, error) {
+	discoveryClient, err := c.ToDiscoveryClient()
+	if err != nil {
+		return nil, err
+	}
+
+	mapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
+	expander := restmapper.NewShortcutExpander(mapper, discoveryClient)
+	return expander, nil
+}
+
+func (c *SimpleRESTClientGetter) ToRawKubeConfigLoader() clientcmd.ClientConfig {
+	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
+	loadingRules.DefaultClientConfig = &clientcmd.DefaultClientConfig
+
+	overrides := &clientcmd.ConfigOverrides{ClusterDefaults: clientcmd.ClusterDefaults}
+	overrides.Context.Namespace = c.Namespace
+
+	return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)
+}
diff --git a/internal/flags/setup.go b/internal/util/waitSet.go
similarity index 68%
rename from internal/flags/setup.go
rename to internal/util/waitSet.go
index 5dea135..7b37232 100644
--- a/internal/flags/setup.go
+++ b/internal/util/waitSet.go
@@ -16,7 +16,26 @@
 // under the License.
 //
 
-package flags
+package util
 
-var Env string
-var File string
+import (
+	"sync"
+	"time"
+)
+
+type WaitSet struct {
+	WaitGroup  sync.WaitGroup
+	ErrChan    chan error
+	FinishChan chan bool
+	Timeout    time.Duration
+}
+
+func NewWaitSet(timeout time.Duration) *WaitSet {
+	waitSet := WaitSet{
+		WaitGroup:  sync.WaitGroup{},
+		ErrChan:    make(chan error, 1),
+		FinishChan: make(chan bool, 1),
+		Timeout:    timeout,
+	}
+	return &waitSet
+}
diff --git a/internal/util/which.go b/internal/util/which.go
index b114ab6..50030d7 100644
--- a/internal/util/which.go
+++ b/internal/util/which.go
@@ -18,7 +18,10 @@
 
 package util
 
-import "os/exec"
+import (
+	"os"
+	"os/exec"
+)
 
 // Which checks if binary is present in PATH.
 func Which(binary string) error {
@@ -26,3 +29,12 @@ func Which(binary string) error {
 
 	return err
 }
+
+// PathExist checks if a file/directory is exist.
+func PathExist(_path string) bool {
+	_, err := os.Stat(_path)
+	if err != nil && os.IsNotExist(err) {
+		return false
+	}
+	return true
+}