File kube-review-0.5.0.obscpio of Package kube-review
07070100000000000081A40000000000000000000000016807DDE800000510000000000000000000000000000000000000002100000000kube-review-0.5.0/.golangci.yamlversion: "2"
linters:
default: all
disable:
- cyclop
- err113
- exhaustruct
- forcetypeassert
- funlen
- gochecknoglobals
- gochecknoinits
- gocognit
- goconst
- gocyclo
- godox
- gomoddirectives
- inamedparam
- ireturn
- mnd
- nestif
- nonamedreturns
- testpackage
- varnamelen
- wrapcheck
settings:
depguard:
rules:
main:
deny:
- pkg: gopkg.in/yaml.v2
desc: use yaml.v3 only
revive:
rules:
- name: unused-parameter
arguments:
- allowRegex: ^_
severity: warning
disabled: false
- name: unused-receiver
arguments:
- allowRegex: ^_
severity: warning
disabled: false
exclusions:
generated: lax
presets:
- comments
- common-false-positives
- legacy
- std-error-handling
paths:
- third_party$
- builtin$
- examples$
formatters:
enable:
- gci
- gofmt
- gofumpt
- goimports
settings:
gci:
sections:
- standard
- default
- blank
- dot
exclusions:
generated: lax
paths:
- third_party$
- builtin$
- examples$
07070100000001000081A40000000000000000000000016807DDE8000003BB000000000000000000000000000000000000001F00000000kube-review-0.5.0/CHANGELOG.md# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [0.5.0] - 2025-04-22
### Changed
* Fix panic when parsing multi-doc YAML, where first doc is empty (#51)
* Bump Go to 1.24
* Bump all dependencies to the latest versions
## [0.4.0] - 2025-01-21
### Added
* `--indent` option
### Changed
* Bump all dependencies to the latest versions (Kubernetes v0.32.1)
## [0.3.0] - 2022-06-07
### Changed
* Bump to Kubernetes v0.27.0 and other dependencies
* Add simple test to verify basis functionality
## [0.2.1] - 2022-09-08
### Changed
* Bump dependencies, including Kubernetes v0.25.0
## [0.2.0] - 2022-04-14
### Changed
* Require subcommands like `create`, in order to allow others in the future
## [0.1.0] - 2021-12-25
### Added
* First release!
07070100000002000081A40000000000000000000000016807DDE800002C5D000000000000000000000000000000000000001A00000000kube-review-0.5.0/LICENSE Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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See the License for the specific language governing permissions and
limitations under the License.
07070100000003000081A40000000000000000000000016807DDE800000340000000000000000000000000000000000000001B00000000kube-review-0.5.0/MakefileVERSION := "v0.4.0"
LDFLAGS := "-X 'github.com/anderseknert/kube-review/cmd.version=$(VERSION)'"
clean:
rm -rf _release
lint:
golangci-lint run
build:
go build -ldflags=$(LDFLAGS)
prepare-release:
mkdir -p _release
build-darwin-amd64: prepare-release
GOOS=darwin GOARCH=amd64 go build -ldflags=$(LDFLAGS) -o _release/kube-review-darwin-amd64
build-darwin-arm64: prepare-release
GOOS=darwin GOARCH=arm64 go build -ldflags=$(LDFLAGS) -o _release/kube-review-darwin-arm64
build-linux-amd64: prepare-release
GOOS=linux GOARCH=amd64 go build -ldflags=$(LDFLAGS) -o _release/kube-review-linux-amd64
build-windows-amd64: prepare-release
GOOS=windows GOARCH=amd64 go build -ldflags=$(LDFLAGS) -o _release/kube-review-windows-amd64.exe
build-all: build-darwin-amd64 build-darwin-arm64 build-linux-amd64 build-windows-amd64
07070100000004000081A40000000000000000000000016807DDE800001BEA000000000000000000000000000000000000001C00000000kube-review-0.5.0/README.md# kube-review
Simple command line utility to transform a provided Kubernetes resource into a Kubernetes AdmissionReview request, as
sent from the Kubernetes API server when [dynamic admission control](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/)
(i.e. webhook) is configured.
**deployment.yaml**
```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
labels:
app: nginx
spec:
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 8080
```
**Command**
```shell
$ kube-review create deployment.yaml
```
**Output**
```json
{
"kind": "AdmissionReview",
"apiVersion": "admission.k8s.io/v1",
"request": {
"uid": "2024ee9c-c374-413c-838d-e62bcb4826be",
"kind": {
"group": "apps",
"version": "v1",
"kind": "Deployment"
},
"resource": {
"group": "apps",
"version": "v1",
"resource": "deployments"
},
"requestKind": {
"group": "apps",
"version": "v1",
"kind": "Deployment"
},
"requestResource": {
"group": "apps",
"version": "v1",
"resource": "deployments"
},
"name": "nginx",
"operation": "CREATE",
"userInfo": {
"username": "kube-review",
"uid": "611a19d7-6aa5-47d2-bba3-8c5df2bffbc7"
},
"object": {
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": {
"name": "nginx",
"creationTimestamp": null,
"labels": {
"app": "nginx"
}
},
"spec": {
"selector": {
"matchLabels": {
"app": "nginx"
}
},
"template": {
"metadata": {
"creationTimestamp": null,
"labels": {
"app": "nginx"
}
},
"spec": {
"containers": [
{
"name": "nginx",
"image": "nginx",
"ports": [
{
"containerPort": 8080
}
],
"resources": {}
}
]
}
},
"strategy": {}
},
"status": {}
},
"oldObject": null,
"dryRun": true,
"options": {
"kind": "CreateOptions",
"apiVersion": "meta.k8s.io/v1"
}
}
}
```
## Why?
* Testing Kubernetes admission webhook receivers without Kubernetes (CI/CD pipelines, faster integration tests, etc.)
* Quickly be able to author, and test, admission control policies with tools like [Open Policy Agent](https://www.openpolicyagent.org/)
## Installation
Find the latest release for your platform at the [release page](https://github.com/anderseknert/kube-review/releases/latest).
Once downloaded, rename it to `kube-review` (or `kube-review.exe` for Windows if not using WSL),
allow it to be executed, and put it somewhere on your `$PATH`.
## Running kube-review
`kube-review create` can either be provided a filename with a resource to create an admission review for, or can read
data from stdin. This allows easily piping resources from a kube cluster and into kube-review.
**Command**
```shell
$ kubectl get service gatekeeper-webhook-service -o yaml | kube-review create --action update
```
**Output**
```json
{
"kind": "AdmissionReview",
"apiVersion": "admission.k8s.io/v1",
"request": {
"uid": "b42420d7-5cc2-4644-992f-72ff67dc2889",
"kind": {
"group": "",
"version": "v1",
"kind": "Service"
},
"name": "gatekeeper-webhook-service",
"namespace": "gatekeeper-system",
"operation": "UPDATE",
"userInfo": {
"username": "kube-review",
"uid": "42eac911-a8ec-4d72-9eb1-e6c466328085"
},
"...": "..."
}
}
```
## Command line options
| Name | Type | Default | Description |
|--------------|--------|-------------|--------------------------------------------------------------------------------------------|
| `--action` | string | create | Type of operation to apply in admission review (create, update, delete, connect) |
| `--as` | string | kube-review | Name of user or service account for userInfo attributes |
| `--as-group` | string | none | Name of group this user or service account belongs to. May be repeated for multiple groups |
| `--indent` | int | 2 | Number of spaces to indent JSON output |
The `action` provided has the following effects on the produced `AdmissionReview` object:
* `create` and `connect`: `request.oldObject` is `null`
* `delete`: `request.object` is `null`
* All actions change the value of `request.operation` and `request.options`
## Using with Open Policy Agent
Assuming we have a policy that denies any deployment where the number of replicas is either undefined or below two:
```rego
package admission
deny contains "Deployment must have at least 2 replicas" if {
input.request.object.spec.replicas < 2
}
deny contains "Deployment must define number of replicas explicitly" if {
not input.request.object.spec.replicas
}
```
We could either run kube-review with a deployment from disk, and pipe the output into `opa eval`:
**Command**
```shell
$ kube-review create deployment.yaml \
| opa eval --format pretty --stdin-input --data policy.rego data.admission.deny
```
**Output**
```json
[
"Deployment must define number of replicas explicitly"
]
```
Or we could run the policy against any resource in our cluster in the same manner:
**Command**
```shell
$ kubectl get deployment my-microservice -o yaml \
| kube-review create \
| opa eval --format pretty --stdin-input --data policy.rego data.admission.deny
```
**Output**
```json
[
"Deployment must have at least 2 replicas"
]
```
Alternatively, we could use `curl` to send the data into a running OPA server:
**Command**
```shell
$ kubectl get deployment my-microservice -o yaml \
| kube-review create \
| curl --data-binary "@-" http://localhost:8181/v0/data/admission/deny
```
**Output**
```json
[
"Deployment must define number of replicas explicitly"
]
```
If your policies are written for [OPA Gatekeeper](https://github.com/open-policy-agent/gatekeeper), simply rename the
`request` object in the admission request to `review`:
```shell
$ kube-review create deployment.yaml \
| opa eval --format pretty --stdin-input '{"review": input.request}' \
| opa eval --format pretty --stdin-input --data policy.rego data.admission.deny
```
## Limitations
* kube-review can create `AdmissionReview` objects from CRDs, or any "Kubernetes-like" manifest, but it makes no attempt
to verify that they conform to the schema of the corresponding `CustomResourceDefinition`.
* Currently, kube-review doesn't handle subresource requests.
07070100000005000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000001600000000kube-review-0.5.0/cmd07070100000006000081A40000000000000000000000016807DDE800000A50000000000000000000000000000000000000001E00000000kube-review-0.5.0/cmd/main.gopackage cmd
import (
"fmt"
"io"
"log"
"os"
"github.com/anderseknert/kube-review/pkg/admission"
"github.com/spf13/cobra"
)
type parameters struct {
action string
as string
groups []string
indent uint8
}
//nolint:gochecknoglobals
var (
params parameters
version = "" // Set by build command
rootCmd = &cobra.Command{
Use: "kube-review",
Short: "create admission review requests from provided kubernetes resources",
Long: `kube-review is a tool to help create AdmissionReview objects from ordinary Kubernetes resource files.
This is useful when e.g. writing admission controller policies or offline tests of Kubernetes admission controller
webhooks`,
}
createCmd = &cobra.Command{
Use: "create",
Short: "creates an admission review request from provided kubernetes resource",
Run: func(_ *cobra.Command, args []string) {
var filename string
if len(args) > 0 {
filename = args[0]
}
stat, err := os.Stdin.Stat()
if err != nil {
log.Fatal(err)
}
var input []byte
// Read data either from stdin, or from file provided as argument
if (filename == "" || filename == "-") && (stat.Mode()&os.ModeCharDevice) == 0 {
input, err = io.ReadAll(os.Stdin)
if err != nil {
log.Fatal(err)
}
} else {
if filename == "" {
log.Fatal("No filename provided and no data to read from stdin")
}
input, err = os.ReadFile(filename)
if err != nil {
log.Fatal(err)
}
}
req, err := admission.CreateAdmissionReviewRequest(input, params.action, params.as, params.groups, params.indent)
if err != nil {
log.Fatal(err)
}
fmt.Fprintln(os.Stdout, string(req))
},
}
versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version of kube-review",
Long: `Print the version of kube-review`,
Run: func(*cobra.Command, []string) {
fmt.Fprintln(os.Stdout, version)
os.Exit(0)
},
}
)
func Execute() {
rootCmd.PersistentFlags().StringVar(
¶ms.action,
"action",
"create",
"Action to simulate (create | update | delete | connect) (default: create)",
)
rootCmd.PersistentFlags().StringVar(
¶ms.as,
"as",
"kube-review",
"Name of user",
)
rootCmd.PersistentFlags().StringSliceVar(
¶ms.groups,
"as-group",
[]string{},
"Group(s) of user (may be repeated) (default: empty)",
)
rootCmd.PersistentFlags().Uint8Var(
¶ms.indent,
"indent",
2,
"Number of spaces to indent JSON output (default: 2)",
)
rootCmd.AddCommand(createCmd)
rootCmd.AddCommand(versionCmd)
if err := rootCmd.Execute(); err != nil {
_, _ = fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
07070100000007000081A40000000000000000000000016807DDE800000478000000000000000000000000000000000000001900000000kube-review-0.5.0/go.modmodule github.com/anderseknert/kube-review
go 1.24.2
require (
github.com/spf13/cobra v1.9.1
k8s.io/api v0.32.3
k8s.io/apimachinery v0.32.3
k8s.io/client-go v0.32.3
)
require (
github.com/fxamacker/cbor/v2 v2.7.0 // indirect
github.com/go-logr/logr v1.4.2 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/google/gofuzz v1.2.0 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/kr/text v0.2.0 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/spf13/pflag v1.0.6 // indirect
github.com/x448/float16 v0.8.4 // indirect
golang.org/x/net v0.38.0 // indirect
golang.org/x/text v0.23.0 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
k8s.io/klog/v2 v2.130.1 // indirect
k8s.io/utils v0.0.0-20241210054802-24370beab758 // indirect
sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8 // indirect
sigs.k8s.io/structured-merge-diff/v4 v4.5.0 // indirect
sigs.k8s.io/yaml v1.4.0 // indirect
)
07070100000008000081A40000000000000000000000016807DDE8000025BF000000000000000000000000000000000000001900000000kube-review-0.5.0/go.sumgithub.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv5E=
github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ=
github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
k8s.io/api v0.32.3 h1:Hw7KqxRusq+6QSplE3NYG4MBxZw1BZnq4aP4cJVINls=
k8s.io/api v0.32.3/go.mod h1:2wEDTXADtm/HA7CCMD8D8bK4yuBUptzaRhYcYEEYA3k=
k8s.io/apimachinery v0.32.3 h1:JmDuDarhDmA/Li7j3aPrwhpNBA94Nvk5zLeOge9HH1U=
k8s.io/apimachinery v0.32.3/go.mod h1:GpHVgxoKlTxClKcteaeuF1Ul/lDVb74KpZcxcmLDElE=
k8s.io/client-go v0.32.3 h1:RKPVltzopkSgHS7aS98QdscAgtgah/+zmpAogooIqVU=
k8s.io/client-go v0.32.3/go.mod h1:3v0+3k4IcT9bXTc4V2rt+d2ZPPG700Xy6Oi0Gdl2PaY=
k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=
k8s.io/klog/v2 v2.130.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
k8s.io/utils v0.0.0-20241210054802-24370beab758 h1:sdbE21q2nlQtFh65saZY+rRM6x6aJJI8IUa1AmH/qa0=
k8s.io/utils v0.0.0-20241210054802-24370beab758/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8 h1:gBQPwqORJ8d8/YNZWEjoZs7npUVDpVXUUOFfW6CgAqE=
sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8/go.mod h1:mdzfpAEoE6DHQEN0uh9ZbOCuHbLK5wOm7dK4ctXE9Tg=
sigs.k8s.io/structured-merge-diff/v4 v4.5.0 h1:nbCitCK2hfnhyiKo6uf2HxUPTCodY6Qaf85SbDIaMBk=
sigs.k8s.io/structured-merge-diff/v4 v4.5.0/go.mod h1:N8f93tFZh9U6vpxwRArLiikrE5/2tiu1w1AGfACIGE4=
sigs.k8s.io/yaml v1.4.0 h1:Mk1wCc2gy/F0THH0TAp1QYyJNzRm2KCLy3o5ASXVI5E=
sigs.k8s.io/yaml v1.4.0/go.mod h1:Ejl7/uTz7PSA4eKMyQCUTnhZYNmLIl+5c2lQPGR2BPY=
07070100000009000081A40000000000000000000000016807DDE8000000D9000000000000000000000000000000000000001A00000000kube-review-0.5.0/main.gopackage main
import (
"log"
"github.com/anderseknert/kube-review/cmd"
)
func main() {
// Remove date/time from (likely fatal) log messages
log.SetFlags(log.Flags() &^ (log.Ldate | log.Ltime))
cmd.Execute()
}
0707010000000A000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000001600000000kube-review-0.5.0/pkg0707010000000B000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000002000000000kube-review-0.5.0/pkg/admission0707010000000C000081A40000000000000000000000016807DDE800001D4D000000000000000000000000000000000000002A00000000kube-review-0.5.0/pkg/admission/review.gopackage admission
import (
"bytes"
"encoding/json"
"fmt"
"strings"
admissionv1 "k8s.io/api/admission/v1"
v1 "k8s.io/api/authentication/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/client-go/kubernetes/scheme"
)
func CreateAdmissionReviewRequest(
input []byte,
action string,
username string,
groups []string,
indent uint8,
) ([]byte, error) {
operation, err := actionToOperation(action)
if err != nil {
return nil, err
}
decode := scheme.Codecs.UniversalDeserializer().Decode
object, kind, err := decode(input, nil, nil)
if err != nil {
// Failure to decode, likely due to unrecognized type, try unstructured
return fromUnstructured(input, operation, username, groups, indent)
}
unstructured, err := runtime.DefaultUnstructuredConverter.ToUnstructured(object)
if err != nil {
return nil, fmt.Errorf("failed to parse object, %w", err)
}
return createAdmissionRequest(
unstructured,
*kind,
operation,
getUserInfo(username, groups),
getNewObject(object, *operation),
getOldObject(object, *operation),
indent,
)
}
func fromUnstructured(
input []byte,
operation *admissionv1.Operation,
username string,
groups []string,
indent uint8,
) ([]byte, error) {
var object any
decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(input), 4096)
// Try "brute forcre" serialization of unknown type
err := decoder.Decode(&object)
if err != nil {
return nil, err
}
// If the first object is nil, it's likely an empty document.
// We could keep reading until we have a non-nil object, but this feels like
// an unusual case already..
// https://github.com/anderseknert/kube-review/issues/51
if object == nil {
err = decoder.Decode(&object)
if err != nil {
return nil, err
}
}
unstructured, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&object)
if err != nil {
return nil, fmt.Errorf("failed to parse object, %w", err)
}
version, err := schema.ParseGroupVersion(unstructured["apiVersion"].(string))
if err != nil {
return nil, err
}
withKind := version.WithKind(unstructured["kind"].(string))
kind := &schema.GroupVersionKind{
Group: withKind.Group,
Version: withKind.Version,
Kind: withKind.Kind,
}
userInfo := getUserInfo(username, groups)
var unknown runtime.Unknown
err = runtime.DefaultUnstructuredConverter.FromUnstructured(unstructured, &unknown)
if err != nil {
return nil, err
}
newObject := getUnknownRaw(&unknown, *operation)
oldObject := getOldUnknownRaw(&unknown, *operation)
return createAdmissionRequest(unstructured, *kind, operation, userInfo, newObject, oldObject, indent)
}
func createAdmissionRequest(
unstructured map[string]any,
gvk schema.GroupVersionKind,
operation *admissionv1.Operation,
user v1.UserInfo,
object, oldObject runtime.RawExtension,
indent uint8,
) ([]byte, error) {
dryRun := true
name, namespace := getNameAndNamespace(unstructured)
r, _ := meta.UnsafeGuessKindToResource(gvk)
resource := &metav1.GroupVersionResource{Group: r.Group, Version: r.Version, Resource: r.Resource}
kind := gvkMeta(gvk.Group, gvk.Version, gvk.Kind)
admissionRequest := &admissionv1.AdmissionRequest{
UID: uuid.NewUUID(),
Kind: *kind,
Resource: *resource,
SubResource: "", // TODO
RequestKind: kind,
RequestResource: resource,
RequestSubResource: "", // TODO
Name: name,
Operation: *operation,
UserInfo: user,
Object: object,
OldObject: oldObject,
DryRun: &dryRun,
Options: getOptions(*operation),
}
if namespace != "" {
admissionRequest.Namespace = namespace
}
admissionReview := &admissionv1.AdmissionReview{
TypeMeta: metav1.TypeMeta{APIVersion: "admission.k8s.io/v1", Kind: "AdmissionReview"},
Request: admissionRequest,
}
var requestJSON []byte
var err error
if indent == 0 {
requestJSON, err = json.Marshal(&admissionReview)
if err != nil {
return nil, fmt.Errorf("failed encoding object to JSON %w", err)
}
} else {
requestJSON, err = json.MarshalIndent(&admissionReview, "", strings.Repeat(" ", int(indent)))
if err != nil {
return nil, fmt.Errorf("failed encoding object to JSON %w", err)
}
}
return requestJSON, nil
}
func gvkMeta(group, version, kind string) *metav1.GroupVersionKind {
return &metav1.GroupVersionKind{
Group: group,
Version: version,
Kind: kind,
}
}
func actionToOperation(action string) (*admissionv1.Operation, error) {
actionMapper := map[string]admissionv1.Operation{
"create": admissionv1.Create,
"update": admissionv1.Update,
"delete": admissionv1.Delete,
"connect": admissionv1.Connect,
}
var admissionAction admissionv1.Operation
var found bool
if admissionAction, found = actionMapper[action]; !found {
return nil, fmt.Errorf("unknown action: %v, choose one of 'create', 'update', 'delete' or 'connect'", action)
}
return &admissionAction, nil
}
func getNameAndNamespace(unstructured map[string]any) (name string, namespace string) {
metadata := unstructured["metadata"]
if t, ok := metadata.(map[string]any); ok {
if n, ok2 := t["name"].(string); ok2 {
name = n
}
if n, ok2 := t["namespace"].(string); ok2 {
namespace = n
}
}
return name, namespace
}
func getUserInfo(username string, groups []string) v1.UserInfo {
return v1.UserInfo{
Username: username,
Groups: groups,
UID: string(uuid.NewUUID()),
Extra: map[string]v1.ExtraValue{},
}
}
func getUnknownRaw(unknown *runtime.Unknown, action admissionv1.Operation) runtime.RawExtension {
if action == admissionv1.Delete {
return runtime.RawExtension{}
}
return runtime.RawExtension{
Object: unknown,
}
}
func getNewObject(object runtime.Object, action admissionv1.Operation) runtime.RawExtension {
if action == admissionv1.Delete {
return runtime.RawExtension{}
}
return runtime.RawExtension{
Object: object.DeepCopyObject(),
}
}
func getOldUnknownRaw(unknown *runtime.Unknown, action admissionv1.Operation) runtime.RawExtension {
if action == admissionv1.Create || action == admissionv1.Connect {
return runtime.RawExtension{}
}
return runtime.RawExtension{
Object: unknown,
}
}
func getOldObject(object runtime.Object, action admissionv1.Operation) runtime.RawExtension {
if action == admissionv1.Create || action == admissionv1.Connect {
return runtime.RawExtension{}
}
return runtime.RawExtension{
Object: object.DeepCopyObject(),
}
}
func getOptions(action admissionv1.Operation) runtime.RawExtension {
switch action {
case admissionv1.Create:
return runtime.RawExtension{Object: &metav1.CreateOptions{
TypeMeta: metav1.TypeMeta{
Kind: "CreateOptions",
APIVersion: "meta.k8s.io/v1",
},
}}
case admissionv1.Update:
return runtime.RawExtension{Object: &metav1.UpdateOptions{
TypeMeta: metav1.TypeMeta{
Kind: "UpdateOptions",
APIVersion: "meta.k8s.io/v1",
},
}}
case admissionv1.Delete:
return runtime.RawExtension{Object: &metav1.DeleteOptions{
TypeMeta: metav1.TypeMeta{
Kind: "DeleteOptions",
APIVersion: "meta.k8s.io/v1",
},
}}
case admissionv1.Connect:
return runtime.RawExtension{}
default:
panic(fmt.Sprintf("unknown action: %v", action))
}
}
0707010000000D000081A40000000000000000000000016807DDE80000043F000000000000000000000000000000000000002F00000000kube-review-0.5.0/pkg/admission/review_test.gopackage admission
import (
"encoding/json"
"os"
"testing"
v1 "k8s.io/api/admission/v1"
)
func TestBasicReview(t *testing.T) {
t.Parallel()
manifest := mustReadFileString(t, "testdata/in.yaml")
reviewBytes, err := CreateAdmissionReviewRequest(
[]byte(manifest),
"create",
"kube-review",
[]string{"system:masters"},
2,
)
if err != nil {
t.Fatal(err)
}
var review v1.AdmissionReview
err = json.Unmarshal(reviewBytes, &review)
if err != nil {
t.Fatal(err)
}
}
func TestReviewMultipleDocsFirstOneEmpty(t *testing.T) {
t.Parallel()
manifest := mustReadFileString(t, "testdata/twodocsfirstempty.yaml")
reviewBytes, err := CreateAdmissionReviewRequest(
[]byte(manifest),
"create",
"kube-review",
[]string{"system:masters"},
2,
)
if err != nil {
t.Fatal(err)
}
var review v1.AdmissionReview
err = json.Unmarshal(reviewBytes, &review)
if err != nil {
t.Fatal(err)
}
}
func mustReadFileString(t *testing.T, path string) string {
t.Helper()
data, err := os.ReadFile(path)
if err != nil {
t.Fatal(err)
}
return string(data)
}
0707010000000E000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000002900000000kube-review-0.5.0/pkg/admission/testdata0707010000000F000081A40000000000000000000000016807DDE800000137000000000000000000000000000000000000003100000000kube-review-0.5.0/pkg/admission/testdata/in.yamlapiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
labels:
app: nginx
spec:
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 8080
07070100000010000081A40000000000000000000000016807DDE80000005C000000000000000000000000000000000000004000000000kube-review-0.5.0/pkg/admission/testdata/twodocsfirstempty.yaml# empty
---
apiVersion: foo/v1alpha1
kind: foo
metadata:
name: foo-bar-123
spec:
bar: 1
07070100000011000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000001700000000kube-review-0.5.0/test07070100000012000041ED0000000000000000000000026807DDE800000000000000000000000000000000000000000000002100000000kube-review-0.5.0/test/manifests07070100000013000081A40000000000000000000000016807DDE800000141000000000000000000000000000000000000003100000000kube-review-0.5.0/test/manifests/deployment.yamlapiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
labels:
app: nginx
spec:
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 8080
07070100000014000081A40000000000000000000000016807DDE800000129000000000000000000000000000000000000002D00000000kube-review-0.5.0/test/manifests/policy.yamlapiVersion: config.kio.kasten.io/v1alpha1
kind: Policy
metadata:
name: sample-custom-backup-policy
namespace: kasten-io
spec:
comment: My sample custom backup policy
frequency: '@daily'
retention:
daily: 30
weekly: 4
monthly: 12
yearly: 7
actions:
- action: backup
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!94 blocks
