diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..963b3289
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,31 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+.idea/
+dist/
+**/junit.xml
+**/.env
+.vscode/
+vendor/
+coverage.txt
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..ee8e4750
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,23 @@
+language: go
+go:
+ - 1.x
+ - tip
+
+env:
+  - DEP_VERSION="0.4.1"
+
+before_install:
+  # Download the binary to bin folder in $GOPATH
+  - curl -L -s https://github.com/golang/dep/releases/download/v${DEP_VERSION}/dep-linux-amd64 -o $GOPATH/bin/dep
+  # Make the binary executable
+  - chmod +x $GOPATH/bin/dep
+
+install:
+  - dep ensure
+
+script:
+  - go build ./...
+  - ./hack/coverage.sh
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..771f2e48
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,38 @@
+# How to Contribute
+
+AppsCode projects are [Apache 2.0 licensed](LICENSE) and accept contributions via
+GitHub pull requests.  This document outlines some of the conventions on
+development workflow, commit message formatting, contact points and other
+resources to make it easier to get your contribution accepted.
+
+## Certificate of Origin
+
+By contributing to this project you agree to the Developer Certificate of
+Origin (DCO). This document was created by the Linux Kernel community and is a
+simple statement that you, as a contributor, have the legal right to make the
+contribution. See the [DCO](DCO) file for details.
+
+## Developer Guide
+We have a [Developer Guide](/docs/developer-guide/README.md) that outlines everything you need to know from setting up your
+dev environment to how to build and test Kutil. If you find something undocumented or incorrect along the way,
+please feel free to send a Pull Request.
+
+## Getting Help
+If you have a question about Kutil or having problem using it, you can contact us on our public Slack channel. Follow [this link](https://slack.appscode.com) to get invitation to our Slack channel.
+
+## Bugs/Feature request
+If you have found a bug with Kutil or want to request for new features, please [file an issue](https://github.com/appscode/Kutil/issues/new). 
+
+## Contribution Flow
+If you fix a bug or developed a new feature, feel free to submit a PR. In either case, please file a [Github issue]((https://github.com/appscode/kutil/issues/new)) first, so that we can have a discussion on it. This is a rough outline of what a contributor's workflow looks like:
+
+- Create a topic branch from where you want to base your work (usually master).
+- Make commits of logical units.
+- Push your changes to a topic branch in your fork of the repository.
+- Make sure the tests pass, and add any new tests as appropriate.
+- Submit a pull request to the original repository.
+
+Thanks for your contributions!
+
+## Spread the word
+If you have written blog post or tutorial on Kutil, please share it with us on [Twitter](https://twitter.com/AppsCodeHQ) or [Slack](https://slack.appscode.com).
diff --git a/DCO b/DCO
new file mode 100644
index 00000000..716561d5
--- /dev/null
+++ b/DCO
@@ -0,0 +1,36 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+660 York Street, Suite 102,
+San Francisco, CA 94110 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 00000000..d0a03ada
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,453 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "cloud.google.com/go"
+  packages = ["compute/metadata"]
+  revision = "20d4028b8a750c2aca76bf9fefa8ed2d0109b573"
+  version = "v0.19.0"
+
+[[projects]]
+  name = "github.com/Azure/go-autorest"
+  packages = [
+    "autorest",
+    "autorest/adal",
+    "autorest/azure",
+    "autorest/date"
+  ]
+  revision = "fc3b03a2d2d1f43fad3007038bd16f044f870722"
+  version = "v9.10.0"
+
+[[projects]]
+  name = "github.com/PuerkitoBio/purell"
+  packages = ["."]
+  revision = "0bcb03f4b4d0a9428594752bd2a3b9aa0a9d4bd4"
+  version = "v1.1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/PuerkitoBio/urlesc"
+  packages = ["."]
+  revision = "de5bf2ad457846296e2031421a34e2568e304e35"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/appscode/jsonpatch"
+  packages = ["."]
+  revision = "3e75a56b8967932466984d4432401e1c1a7ff61e"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/appscode/kutil"
+  packages = [
+    "admission",
+    "runtime/serializer/versioning",
+    "workload/v1"
+  ]
+  revision = "436b54978ae275a61a06baa3f0a119864691cf12"
+
+[[projects]]
+  name = "github.com/dgrijalva/jwt-go"
+  packages = ["."]
+  revision = "06ea1031745cb8b3dab3f6a236daf2b0aa468b7e"
+  version = "v3.2.0"
+
+[[projects]]
+  name = "github.com/docker/distribution"
+  packages = [
+    "digestset",
+    "reference"
+  ]
+  revision = "edc3ab29cdff8694dd6feb85cfeb4b5f1b38ed9c"
+
+[[projects]]
+  name = "github.com/emicklei/go-restful"
+  packages = [
+    ".",
+    "log"
+  ]
+  revision = "26b41036311f2da8242db402557a0dbd09dc83da"
+  version = "v2.6.0"
+
+[[projects]]
+  name = "github.com/ghodss/yaml"
+  packages = ["."]
+  revision = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/go-openapi/jsonpointer"
+  packages = ["."]
+  revision = "779f45308c19820f1a69e9a4cd965f496e0da10f"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/go-openapi/jsonreference"
+  packages = ["."]
+  revision = "36d33bfe519efae5632669801b180bf1a245da3b"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/go-openapi/spec"
+  packages = ["."]
+  revision = "d8000b5bfbd1147255710505a27c735b6b2ae2ac"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/go-openapi/swag"
+  packages = ["."]
+  revision = "ceb469cb0fdf2d792f28d771bc05da6c606f55e5"
+
+[[projects]]
+  name = "github.com/gogo/protobuf"
+  packages = [
+    "proto",
+    "sortkeys"
+  ]
+  revision = "1adfc126b41513cc696b209667c8656ea7aac67c"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/golang/glog"
+  packages = ["."]
+  revision = "23def4e6c14b4da8ac2ed8007337bc5eb5007998"
+
+[[projects]]
+  name = "github.com/golang/protobuf"
+  packages = ["proto"]
+  revision = "925541529c1fa6821df4e44ce2723319eb2be768"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/google/btree"
+  packages = ["."]
+  revision = "e89373fe6b4a7413d7acd6da1725b83ef713e6e4"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/google/gofuzz"
+  packages = ["."]
+  revision = "24818f796faf91cd76ec7bddd72458fbced7a6c1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/gophercloud/gophercloud"
+  packages = [
+    ".",
+    "openstack",
+    "openstack/identity/v2/tenants",
+    "openstack/identity/v2/tokens",
+    "openstack/identity/v3/tokens",
+    "openstack/utils",
+    "pagination"
+  ]
+  revision = "3aef8e417612ddbdd8f7a76004af4307296cd1b6"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/gregjones/httpcache"
+  packages = [
+    ".",
+    "diskcache"
+  ]
+  revision = "9cad4c3443a7200dd6400aef47183728de563a38"
+
+[[projects]]
+  name = "github.com/json-iterator/go"
+  packages = ["."]
+  revision = "ca39e5af3ece67bbcda3d0f4f56a8e24d9f2dad4"
+  version = "1.1.3"
+
+[[projects]]
+  name = "github.com/juju/ratelimit"
+  packages = ["."]
+  revision = "59fac5042749a5afb9af70e813da1dd5474f0167"
+  version = "1.0.1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/mailru/easyjson"
+  packages = [
+    "buffer",
+    "jlexer",
+    "jwriter"
+  ]
+  revision = "517203d186eb343d3df4068565cc0446b450d2c4"
+
+[[projects]]
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94"
+  version = "1.0.3"
+
+[[projects]]
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  revision = "1df9eeb2bb81f327b96228865c5687bc2194af3f"
+  version = "1.0.0"
+
+[[projects]]
+  name = "github.com/opencontainers/go-digest"
+  packages = ["."]
+  revision = "279bed98673dd5bef374d3b6e4b09e2af76183bf"
+  version = "v1.0.0-rc1"
+
+[[projects]]
+  name = "github.com/pborman/uuid"
+  packages = ["."]
+  revision = "e790cca94e6cc75c7064b1332e63811d4aae1a53"
+  version = "v1.1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/petar/GoLLRB"
+  packages = ["llrb"]
+  revision = "53be0d36a84c2a886ca057d34b6aa4468df9ccb4"
+
+[[projects]]
+  name = "github.com/peterbourgon/diskv"
+  packages = ["."]
+  revision = "5f041e8faa004a95c88a202771f4cc3e991971e6"
+  version = "v2.0.1"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "e57e3eeb33f795204c1ca35f56c44f83227c6e66"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "release-branch.go1.9"
+  name = "golang.org/x/net"
+  packages = [
+    "context",
+    "context/ctxhttp",
+    "http2",
+    "http2/hpack",
+    "idna",
+    "lex/httplex"
+  ]
+  revision = "44b7c21cbf19450f38b337eb6b6fe4f6496fb5b3"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/oauth2"
+  packages = [
+    ".",
+    "google",
+    "internal",
+    "jws",
+    "jwt"
+  ]
+  revision = "fdc9e635145ae97e6c2cb777c48305600cf515cb"
+
+[[projects]]
+  name = "golang.org/x/text"
+  packages = [
+    "collate",
+    "collate/build",
+    "internal/colltab",
+    "internal/gen",
+    "internal/tag",
+    "internal/triegen",
+    "internal/ucd",
+    "language",
+    "secure/bidirule",
+    "transform",
+    "unicode/bidi",
+    "unicode/cldr",
+    "unicode/norm",
+    "unicode/rangetable",
+    "width"
+  ]
+  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
+  version = "v0.3.0"
+
+[[projects]]
+  name = "google.golang.org/appengine"
+  packages = [
+    ".",
+    "internal",
+    "internal/app_identity",
+    "internal/base",
+    "internal/datastore",
+    "internal/log",
+    "internal/modules",
+    "internal/remote_api",
+    "internal/urlfetch",
+    "urlfetch"
+  ]
+  revision = "150dc57a1b433e64154302bdc40b6bb8aefa313a"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "gopkg.in/inf.v0"
+  packages = ["."]
+  revision = "3887ee99ecf07df5b447e9b00d9c0b2adaa9f3e4"
+  version = "v0.9.0"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "7f97868eec74b32b0982dd158a51a446d1da7eb5"
+  version = "v2.1.1"
+
+[[projects]]
+  name = "k8s.io/api"
+  packages = [
+    "admission/v1beta1",
+    "apps/v1",
+    "apps/v1beta1",
+    "apps/v1beta2",
+    "authentication/v1",
+    "batch/v1",
+    "batch/v1beta1",
+    "batch/v2alpha1",
+    "core/v1",
+    "extensions/v1beta1"
+  ]
+  revision = "af4bc157c3a209798fc897f6d4aaaaeb6c2e0d6a"
+  version = "kubernetes-1.9.0"
+
+[[projects]]
+  branch = "master"
+  name = "k8s.io/apiextensions-apiserver"
+  packages = ["pkg/features"]
+  revision = "d8502160be313d4caef49987736fd30723a763d4"
+
+[[projects]]
+  name = "k8s.io/apimachinery"
+  packages = [
+    "pkg/api/equality",
+    "pkg/api/errors",
+    "pkg/api/meta",
+    "pkg/api/resource",
+    "pkg/api/validation",
+    "pkg/api/validation/path",
+    "pkg/apimachinery",
+    "pkg/apimachinery/announced",
+    "pkg/apimachinery/registered",
+    "pkg/apis/meta/internalversion",
+    "pkg/apis/meta/v1",
+    "pkg/apis/meta/v1/unstructured",
+    "pkg/apis/meta/v1/validation",
+    "pkg/apis/meta/v1alpha1",
+    "pkg/conversion",
+    "pkg/conversion/queryparams",
+    "pkg/fields",
+    "pkg/labels",
+    "pkg/runtime",
+    "pkg/runtime/schema",
+    "pkg/runtime/serializer",
+    "pkg/runtime/serializer/json",
+    "pkg/runtime/serializer/protobuf",
+    "pkg/runtime/serializer/recognizer",
+    "pkg/runtime/serializer/streaming",
+    "pkg/runtime/serializer/versioning",
+    "pkg/selection",
+    "pkg/types",
+    "pkg/util/clock",
+    "pkg/util/errors",
+    "pkg/util/framer",
+    "pkg/util/intstr",
+    "pkg/util/json",
+    "pkg/util/net",
+    "pkg/util/rand",
+    "pkg/util/runtime",
+    "pkg/util/sets",
+    "pkg/util/uuid",
+    "pkg/util/validation",
+    "pkg/util/validation/field",
+    "pkg/util/wait",
+    "pkg/util/yaml",
+    "pkg/version",
+    "pkg/watch",
+    "third_party/forked/golang/reflect"
+  ]
+  revision = "180eddb345a5be3a157cea1c624700ad5bd27b8f"
+  version = "kubernetes-1.9.0"
+
+[[projects]]
+  name = "k8s.io/apiserver"
+  packages = [
+    "pkg/admission",
+    "pkg/apis/apiserver",
+    "pkg/apis/apiserver/v1alpha1",
+    "pkg/apis/audit",
+    "pkg/authentication/user",
+    "pkg/endpoints/request",
+    "pkg/features",
+    "pkg/registry/rest",
+    "pkg/storage/names",
+    "pkg/util/feature"
+  ]
+  revision = "91e14f394e4796abf5a994a349a222e7081d86b6"
+  version = "kubernetes-1.9.0"
+
+[[projects]]
+  name = "k8s.io/client-go"
+  packages = [
+    "pkg/version",
+    "plugin/pkg/client/auth",
+    "plugin/pkg/client/auth/azure",
+    "plugin/pkg/client/auth/gcp",
+    "plugin/pkg/client/auth/oidc",
+    "plugin/pkg/client/auth/openstack",
+    "rest",
+    "rest/watch",
+    "third_party/forked/golang/template",
+    "tools/clientcmd/api",
+    "tools/metrics",
+    "transport",
+    "util/cert",
+    "util/flowcontrol",
+    "util/integer",
+    "util/jsonpath"
+  ]
+  revision = "78700dec6369ba22221b72770783300f143df150"
+  version = "v6.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "k8s.io/kube-openapi"
+  packages = ["pkg/common"]
+  revision = "50ae88d24ede7b8bad68e23c805b5d3da5c8abaf"
+
+[[projects]]
+  name = "k8s.io/kubernetes"
+  packages = [
+    "pkg/api/legacyscheme",
+    "pkg/apis/apps",
+    "pkg/apis/apps/install",
+    "pkg/apis/apps/v1",
+    "pkg/apis/apps/v1beta1",
+    "pkg/apis/apps/v1beta2",
+    "pkg/apis/autoscaling",
+    "pkg/apis/batch",
+    "pkg/apis/batch/install",
+    "pkg/apis/batch/v1",
+    "pkg/apis/batch/v1beta1",
+    "pkg/apis/batch/v2alpha1",
+    "pkg/apis/core",
+    "pkg/apis/core/install",
+    "pkg/apis/core/v1",
+    "pkg/apis/extensions",
+    "pkg/apis/extensions/install",
+    "pkg/apis/extensions/v1beta1",
+    "pkg/apis/networking",
+    "pkg/features",
+    "pkg/util/parsers",
+    "pkg/util/pointer"
+  ]
+  revision = "925c127ec6b946659ad0fd596fa959be43f0cc05"
+  version = "v1.9.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "73f3c618546e4f8bdbe31763d1bc5777bb7c2f966eb3c14c4d5a822e4497d7e8"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
new file mode 100644
index 00000000..63079bb6
--- /dev/null
+++ b/Gopkg.toml
@@ -0,0 +1,94 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/appscode/jsonpatch"
+
+[[constraint]]
+  branch = "release-6.0"
+  name = "github.com/appscode/kutil"
+
+[[constraint]]
+  name = "github.com/json-iterator/go"
+  version = "1.1.3"
+
+[[constraint]]
+  name = "k8s.io/api"
+  version = "kubernetes-1.9.0"
+
+[[constraint]]
+  name = "k8s.io/apimachinery"
+  version = "kubernetes-1.9.0"
+
+[[constraint]]
+  name = "k8s.io/apiserver"
+  version = "kubernetes-1.9.0"
+
+[[constraint]]
+  name = "k8s.io/client-go"
+  version = "6.0.0"
+
+[[constraint]]
+  name = "k8s.io/kubernetes"
+  version = "=v1.9.0"
+
+[[override]]
+  branch = "release-branch.go1.9"
+  name = "golang.org/x/net"
+
+[[override]]
+  name = "github.com/Azure/azure-sdk-for-go"
+  version = "v11.1.1-beta"
+
+[[override]]
+  name = "github.com/Azure/go-autorest"
+  version = "v9.1.0"
+
+[[override]]
+  name = "github.com/docker/distribution"
+  revision = "edc3ab29cdff8694dd6feb85cfeb4b5f1b38ed9c"
+
+[[override]]
+  name = "github.com/docker/docker"
+  revision = "4f3616fb1c112e206b88cb7a9922bf49067a7756"
+
+[[override]]
+  name = "github.com/docker/go-connections"
+  version = "v0.3.0"
+
+[[override]]
+  name = "github.com/docker/go-units"
+  revision = "9e638d38cf6977a37a8ea0078f3ee75a7cdb2dd1"
+
+[[override]]
+  name = "github.com/docker/libtrust"
+  revision = "9cbd2a1374f46905c68a4eb3694a130610adc62a"
+
+[prune]
+  go-tests = true
+  unused-packages = true
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..8dada3ed
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
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+
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+      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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+
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+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
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+
+   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/README.md b/README.md
new file mode 100644
index 00000000..b6270812
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+[![Go Report Card](https://goreportcard.com/badge/github.com/appscode/kubernetes-webhook-util)](https://goreportcard.com/report/github.com/appscode/kubernetes-webhook-util)
+[![GoDoc](https://godoc.org/github.com/appscode/kubernetes-webhook-util?status.svg "GoDoc")](https://godoc.org/github.com/appscode/kubernetes-webhook-util)
+[![Build Status](https://travis-ci.org/appscode/kubernetes-webhook-util.svg?branch=master)](https://travis-ci.org/appscode/kubernetes-webhook-util)
+[![codecov](https://codecov.io/gh/appscode/kubernetes-webhook-util/branch/master/graph/badge.svg)](https://codecov.io/gh/appscode/kubernetes-webhook-util)
+[![Slack](https://slack.appscode.com/badge.svg)](https://slack.appscode.com)
+[![Twitter](https://img.shields.io/twitter/follow/appscodehq.svg?style=social&logo=twitter&label=Follow)](https://twitter.com/intent/follow?screen_name=AppsCodeHQ)
+
+# kubernetes-webhook-util
+Kubernetes webhook utils
diff --git a/admission/v1beta1/generic.go b/admission/v1beta1/generic.go
index 1b981d55..cbf64276 100644
--- a/admission/v1beta1/generic.go
+++ b/admission/v1beta1/generic.go
@@ -5,8 +5,8 @@ import (
 	"sync"
 
 	jp "github.com/appscode/jsonpatch"
-	"github.com/appscode/kutil/admission"
-	"github.com/appscode/kutil/runtime/serializer/versioning"
+	"github.com/appscode/kubernetes-webhook-util/admission"
+	"github.com/appscode/kubernetes-webhook-util/runtime/serializer/versioning"
 	"k8s.io/api/admission/v1beta1"
 	kerr "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime/schema"
diff --git a/admission/v1beta1/workload.go b/admission/v1beta1/workload.go
index a414e25d..6bd4ebfe 100644
--- a/admission/v1beta1/workload.go
+++ b/admission/v1beta1/workload.go
@@ -5,9 +5,9 @@ import (
 	"sync"
 
 	jp "github.com/appscode/jsonpatch"
-	"github.com/appscode/kutil/admission"
-	"github.com/appscode/kutil/runtime/serializer/versioning"
-	workload "github.com/appscode/kutil/workload/v1"
+	"github.com/appscode/kubernetes-webhook-util/admission"
+	"github.com/appscode/kubernetes-webhook-util/runtime/serializer/versioning"
+	workload "github.com/appscode/kubernetes-webhook-util/workload/v1"
 	"k8s.io/api/admission/v1beta1"
 	appsv1 "k8s.io/api/apps/v1"
 	batchv1 "k8s.io/api/batch/v1"
diff --git a/hack/builddeps.sh b/hack/builddeps.sh
new file mode 100755
index 00000000..935e79cb
--- /dev/null
+++ b/hack/builddeps.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# https://github.com/ellisonbg/antipackage
+pip install git+https://github.com/ellisonbg/antipackage.git#egg=antipackage
+pip install pyyaml
+
+go get -u golang.org/x/tools/cmd/goimports
+go get github.com/Masterminds/glide
+go get github.com/sgotti/glide-vc
diff --git a/hack/codegen.sh b/hack/codegen.sh
new file mode 100755
index 00000000..6b80b102
--- /dev/null
+++ b/hack/codegen.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -x
+
+GOPATH=$(go env GOPATH)
+PACKAGE_NAME=github.com/appscode/kubernetes-webhook-util
+REPO_ROOT="$GOPATH/src/$PACKAGE_NAME"
+DOCKER_REPO_ROOT="/go/src/$PACKAGE_NAME"
+
+pushd $REPO_ROOT
+
+# Generate deep copies
+docker run --rm -ti -u $(id -u):$(id -g) \
+    -v "$REPO_ROOT":"$DOCKER_REPO_ROOT" \
+    -w "$DOCKER_REPO_ROOT" \
+    appscode/gengo:release-1.9 deepcopy-gen \
+    --v 1 --logtostderr \
+    --go-header-file "hack/gengo/boilerplate.go.txt" \
+    --input-dirs "$PACKAGE_NAME/workload/v1" \
+    --output-file-base zz_generated.deepcopy
+
+popd
diff --git a/hack/coverage.sh b/hack/coverage.sh
new file mode 100755
index 00000000..4b81dd99
--- /dev/null
+++ b/hack/coverage.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -eou pipefail
+
+GOPATH=$(go env GOPATH)
+REPO_ROOT="$GOPATH/src/github.com/appscode/kubernetes-webhook-util"
+
+pushd $REPO_ROOT
+
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v -e vendor -e test); do
+    go test -v -race -coverprofile=profile.out -covermode=atomic "$d"
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done
+
+popd
diff --git a/hack/gengo/boilerplate.go.txt b/hack/gengo/boilerplate.go.txt
new file mode 100644
index 00000000..fbebcce5
--- /dev/null
+++ b/hack/gengo/boilerplate.go.txt
@@ -0,0 +1,16 @@
+/*
+Copyright YEAR The kubernetes-webhook-util Authors.
+
+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/hack/make.py b/hack/make.py
new file mode 100755
index 00000000..08ba110d
--- /dev/null
+++ b/hack/make.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python
+
+
+# http://stackoverflow.com/a/14050282
+def check_antipackage():
+    from sys import version_info
+    sys_version = version_info[:2]
+    found = True
+    if sys_version < (3, 0):
+        # 'python 2'
+        from pkgutil import find_loader
+        found = find_loader('antipackage') is not None
+    elif sys_version <= (3, 3):
+        # 'python <= 3.3'
+        from importlib import find_loader
+        found = find_loader('antipackage') is not None
+    else:
+        # 'python >= 3.4'
+        from importlib import util
+        found = util.find_spec('antipackage') is not None
+    if not found:
+        print('Install missing package "antipackage"')
+        print('Example: pip install git+https://github.com/ellisonbg/antipackage.git#egg=antipackage')
+        from sys import exit
+        exit(1)
+check_antipackage()
+
+# ref: https://github.com/ellisonbg/antipackage
+import antipackage
+from github.appscode.libbuild import libbuild, pydotenv
+
+import os
+import os.path
+import subprocess
+import sys
+from os.path import expandvars, join, dirname
+
+libbuild.REPO_ROOT = expandvars('$GOPATH') + '/src/github.com/appscode/kubernetes-webhook-util'
+BUILD_METADATA = libbuild.metadata(libbuild.REPO_ROOT)
+
+
+def call(cmd, stdin=None, cwd=libbuild.REPO_ROOT):
+    print(cmd)
+    return subprocess.call([expandvars(cmd)], shell=True, stdin=stdin, cwd=cwd)
+
+
+def die(status):
+    if status:
+        sys.exit(status)
+
+
+def check_output(cmd, stdin=None, cwd=libbuild.REPO_ROOT):
+    print(cmd)
+    return subprocess.check_output([expandvars(cmd)], shell=True, stdin=stdin, cwd=cwd)
+
+
+def version():
+    # json.dump(BUILD_METADATA, sys.stdout, sort_keys=True, indent=2)
+    for k in sorted(BUILD_METADATA):
+        print(k + '=' + BUILD_METADATA[k])
+
+
+def fmt():
+    libbuild.ungroup_go_imports('admission', 'registry', 'runtime', 'workload')
+    die(call('goimports -w admission registry runtime workload'))
+    call('gofmt -s -w admission registry runtime workload')
+
+
+def vet():
+    call('go vet ./admission/... ./registry/... ./runtime/... ./workload/...')
+
+
+def lint():
+    call('golint *.go')
+    call('golint ./admission/...')
+    call('golint ./registry/...')
+    call('golint ./runtime/...')
+    call('golint ./workload/...')
+
+
+def gen():
+    return
+
+
+def install():
+    die(call('GO15VENDOREXPERIMENT=1 ' + libbuild.GOC + ' install ./...'))
+
+
+def default():
+    gen()
+    fmt()
+    vet()
+    install()
+
+
+if __name__ == "__main__":
+    if len(sys.argv) > 1:
+        # http://stackoverflow.com/a/834451
+        # http://stackoverflow.com/a/817296
+        globals()[sys.argv[1]](*sys.argv[2:])
+    else:
+        default()
\ No newline at end of file
diff --git a/runtime/serializer/versioning/codec.go b/runtime/serializer/versioning/codec.go
index 5f9a2e4b..91dd6c4d 100644
--- a/runtime/serializer/versioning/codec.go
+++ b/runtime/serializer/versioning/codec.go
@@ -34,8 +34,8 @@ var YAMLSerializer = func() runtime.Codec {
 }()
 
 type codec struct {
-	encoder runtime.Encoder
-	decoder runtime.Decoder
+	encoder       runtime.Encoder
+	decoder       runtime.Decoder
 	scheme        *runtime.Scheme
 	defaulter     runtime.ObjectDefaulter
 	encodeVersion schema.GroupVersion
@@ -52,8 +52,8 @@ func NewDefaultingCodecForScheme(
 	decodeVersion schema.GroupVersion,
 ) runtime.Codec {
 	return codec{
-		encoder:   encoder,
-		decoder:   decoder,
+		encoder:       encoder,
+		decoder:       decoder,
 		scheme:        scheme,
 		defaulter:     defaulter,
 		encodeVersion: encodeVersion,
diff --git a/workload/v1/factory.go b/workload/v1/factory.go
index ff381781..ed7a5fd6 100644
--- a/workload/v1/factory.go
+++ b/workload/v1/factory.go
@@ -24,7 +24,7 @@ func New(t metav1.TypeMeta, o metav1.ObjectMeta, tpl core.PodTemplateSpec) *Work
 	}
 }
 
-func newWithObject(t metav1.TypeMeta, o metav1.ObjectMeta, sel *metav1.LabelSelector,  tpl core.PodTemplateSpec, obj runtime.Object) *Workload {
+func newWithObject(t metav1.TypeMeta, o metav1.ObjectMeta, sel *metav1.LabelSelector, tpl core.PodTemplateSpec, obj runtime.Object) *Workload {
 	return &Workload{
 		TypeMeta:   t,
 		ObjectMeta: o,
@@ -32,7 +32,7 @@ func newWithObject(t metav1.TypeMeta, o metav1.ObjectMeta, sel *metav1.LabelSele
 			Selector: sel,
 			Template: tpl,
 		},
-		Object:     obj,
+		Object: obj,
 	}
 }
 
@@ -46,7 +46,7 @@ func ConvertToWorkload(obj runtime.Object) (*Workload, error) {
 		if t.Spec.Template == nil {
 			t.Spec.Template = &core.PodTemplateSpec{}
 		}
-		return newWithObject(t.TypeMeta, t.ObjectMeta,  &metav1.LabelSelector{MatchLabels: t.Spec.Selector}, *t.Spec.Template, obj), nil
+		return newWithObject(t.TypeMeta, t.ObjectMeta, &metav1.LabelSelector{MatchLabels: t.Spec.Selector}, *t.Spec.Template, obj), nil
 		// Deployment
 	case *extensions.Deployment:
 		return newWithObject(t.TypeMeta, t.ObjectMeta, t.Spec.Selector, t.Spec.Template, obj), nil