docker/attest-provider
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Initial commit

Browse Source
This commit is contained in:
Joel Kamp
2024-05-23 10:19:55 -05:00
committed by GitHub
commit 3d0519f92a
36 changed files with 1738 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
.dockerignore Normal file
View File

@@ -0,0 +1,7 @@
# Ignore unnecessary files
**/*~
**/*.log
**/.DS_Store
**/Thumbs.db
./.tmp

25
.github/ISSUE_TEMPLATE/bug-report.md vendored Normal file
View File

@@ -0,0 +1,25 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: bug
assignees: ''
---
**What steps did you take and what happened:**
[A clear and concise description of what the bug is.]
**What did you expect to happen:**
**Anything else you would like to add:**
[Miscellaneous information that will assist in solving the issue.]
**Environment:**
- Gatekeeper version:
- External Data API version:
- Kubernetes version: (use `kubectl version`):

22
.github/ISSUE_TEMPLATE/feature-request.md vendored Normal file
View File

@@ -0,0 +1,22 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: enhancement
assignees: ''
---
**Describe the solution you'd like**
[A clear and concise description of what you want to happen.]
**Anything else you would like to add:**
[Miscellaneous information that will assist in solving the issue.]
**Environment:**
- Gatekeeper version:
- External Data API version:
- Kubernetes version: (use `kubectl version`):

6
.github/PULL_REQUEST_TEMPLATE.md vendored Normal file
View File

@@ -0,0 +1,6 @@
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, using `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when the PR gets merged)*:
Fixes #
**Special notes for your reviewer**:

28
.github/dependabot.yml vendored Normal file
View File

@@ -0,0 +1,28 @@
version: 2
updates:
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "weekly"
commit-message:
prefix: "chore"
- package-ecosystem: "gomod"
directory: "/"
schedule:
interval: "weekly"
commit-message:
prefix: "chore"
ignore:
- dependency-name: "*"
update-types:
- "version-update:semver-major"
- "version-update:semver-minor"
- package-ecosystem: docker
directory: /
schedule:
interval: daily
commit-message:
prefix: "chore"

78
.github/workflows/codeql.yml vendored Normal file
View File

@@ -0,0 +1,78 @@
# For most projects, this workflow file will not need changing; you simply need
# to commit it to your repository.
#
# You may wish to alter this file to override the set of languages analyzed,
# or to provide custom queries or build logic.
#
# ******** NOTE ********
# We have attempted to detect the languages in your repository. Please check
# the `language` matrix defined below to confirm you have the correct set of
# supported CodeQL languages.
#
name: "CodeQL"
on:
push:
branches: ["main"]
pull_request:
# The branches below must be a subset of the branches above
branches: ["main"]
schedule:
- cron: "0 0 * * 1"
permissions:
contents: read
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
permissions:
actions: read
contents: read
security-events: write
strategy:
fail-fast: false
matrix:
language: ["go"]
# CodeQL supports [ $supported-codeql-languages ]
# Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
steps:
- name: Harden Runner
uses: step-security/harden-runner@128a63446a954579617e875aaab7d2978154e969 # v2.4.0
with:
egress-policy: audit
- name: Checkout repository
uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@29b1f65c5e92e24fe6b6647da1eaabe529cec70f # v2.3.3
with:
languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file.
# By default, queries listed here will override any specified in a config file.
# Prefix the list here with "+" to use these queries and those in the config file.
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild
uses: github/codeql-action/autobuild@29b1f65c5e92e24fe6b6647da1eaabe529cec70f # v2.3.3
# ℹ️ Command-line programs to run using the OS shell.
# 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
# If the Autobuild fails above, remove it and uncomment the following three lines.
# modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
# - run: |
# echo "Run, Build Application using script"
# ./location_of_script_within_repo/buildscript.sh
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@29b1f65c5e92e24fe6b6647da1eaabe529cec70f # v2.3.3
with:
category: "/language:${{matrix.language}}"

27
.github/workflows/dependency-review.yml vendored Normal file
View File

@@ -0,0 +1,27 @@
# Dependency Review Action
#
# This Action will scan dependency manifest files that change as part of a Pull Request,
# surfacing known-vulnerable versions of the packages declared or updated in the PR.
# Once installed, if the workflow run is marked as required,
# PRs introducing known-vulnerable packages will be blocked from merging.
#
# Source repository: https://github.com/actions/dependency-review-action
name: 'Dependency Review'
on: [pull_request]
permissions:
contents: read
jobs:
dependency-review:
runs-on: ubuntu-latest
steps:
- name: Harden Runner
uses: step-security/harden-runner@128a63446a954579617e875aaab7d2978154e969 # v2.4.0
with:
egress-policy: audit
- name: 'Checkout Repository'
uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
- name: 'Dependency Review'
uses: actions/dependency-review-action@f46c48ed6d4f1227fb2d9ea62bf6bcbed315589e # v3.0.4

76
.github/workflows/scorecards.yml vendored Normal file
View File

@@ -0,0 +1,76 @@
# This workflow uses actions that are not certified by GitHub. They are provided
# by a third-party and are governed by separate terms of service, privacy
# policy, and support documentation.
name: Scorecard supply-chain security
on:
# For Branch-Protection check. Only the default branch is supported. See
# https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
branch_protection_rule:
# To guarantee Maintained check is occasionally updated. See
# https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
schedule:
- cron: '20 7 * * 2'
push:
branches: ["main"]
# Declare default permissions as read only.
permissions: read-all
jobs:
analysis:
name: Scorecard analysis
runs-on: ubuntu-latest
permissions:
# Needed to upload the results to code-scanning dashboard.
security-events: write
# Needed to publish results and get a badge (see publish_results below).
id-token: write
contents: read
actions: read
steps:
- name: Harden Runner
uses: step-security/harden-runner@128a63446a954579617e875aaab7d2978154e969 # v2.4.0
with:
egress-policy: audit
- name: "Checkout code"
uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
with:
persist-credentials: false
- name: "Run analysis"
uses: ossf/scorecard-action@80e868c13c90f172d68d1f4501dee99e2479f7af # v2.1.3
with:
results_file: results.sarif
results_format: sarif
# (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
# - you want to enable the Branch-Protection check on a *public* repository, or
# - you are installing Scorecards on a *private* repository
# To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
# repo_token: ${{ secrets.SCORECARD_TOKEN }}
# Public repositories:
# - Publish results to OpenSSF REST API for easy access by consumers
# - Allows the repository to include the Scorecard badge.
# - See https://github.com/ossf/scorecard-action#publishing-results.
# For private repositories:
# - `publish_results` will always be set to `false`, regardless
# of the value entered here.
publish_results: true
# Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
# format to the repository Actions tab.
- name: "Upload artifact"
uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
with:
name: SARIF file
path: results.sarif
retention-days: 5
# Upload the results to GitHub's code scanning dashboard.
- name: "Upload to code-scanning"
uses: github/codeql-action/upload-sarif@29b1f65c5e92e24fe6b6647da1eaabe529cec70f # v2.3.3
with:
sarif_file: results.sarif

102
.github/workflows/workflow.yaml vendored Normal file
View File

@@ -0,0 +1,102 @@
name: build_test
on:
workflow_dispatch:
push:
paths-ignore:
- "**.md"
branches:
- main
pull_request:
paths-ignore:
- "**.md"
branches:
- main
permissions:
contents: read
jobs:
lint:
name: "Lint"
runs-on: ubuntu-latest
timeout-minutes: 5
permissions:
contents: read
steps:
- name: Harden Runner
uses: step-security/harden-runner@128a63446a954579617e875aaab7d2978154e969 # v2.4.0
with:
egress-policy: audit
- name: Set up Go 1.19
uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9 # v4.0.0
with:
go-version: 1.19
- name: Check out code into the Go module directory
uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
# source: https://github.com/golangci/golangci-lint-action
- name: golangci-lint
uses: golangci/golangci-lint-action@08e2f20817b15149a52b5b3ebe7de50aff2ba8c5 # v3.4.0
with:
version: v1.50.0
helm_build_test:
name: "[Helm] Build and Test"
runs-on: ubuntu-latest
timeout-minutes: 15
permissions:
contents: read
steps:
- name: Harden Runner
uses: step-security/harden-runner@128a63446a954579617e875aaab7d2978154e969 # v2.4.0
with:
egress-policy: audit
- name: Set up Go 1.19
uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9 # v4.0.0
with:
go-version: 1.19
- name: Check out code into the Go module directory
uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
- name: Bootstrap e2e
env:
KIND_VERSION: 0.17.0
BATS_VERSION: 1.8.2
run: |
mkdir -p $GITHUB_WORKSPACE/bin
echo "${GITHUB_WORKSPACE}/bin" >> $GITHUB_PATH
GOBIN="${GITHUB_WORKSPACE}/bin" go install sigs.k8s.io/kind@v${KIND_VERSION}
curl -sSLO https://github.com/bats-core/bats-core/archive/v${BATS_VERSION}.tar.gz && tar -zxvf v${BATS_VERSION}.tar.gz && bash bats-core-${BATS_VERSION}/install.sh ${GITHUB_WORKSPACE}
- name: Create a kind cluster and install Gatekeeper
env:
GATEKEEPER_VERSION: 3.11.0
KUBERNETES_VERSION: 1.26.0
run: |
kind create cluster --image kindest/node:v${KUBERNETES_VERSION} --name gatekeeper
helm repo add gatekeeper https://open-policy-agent.github.io/gatekeeper/charts
helm install gatekeeper/gatekeeper \
--version ${GATEKEEPER_VERSION} \
--set enableExternalData=true \
--name-template=gatekeeper \
--namespace gatekeeper-system \
--create-namespace \
--debug
- name: Build and install external-data-provider
run: |
./scripts/generate-tls-cert.sh
make docker-buildx kind-load-image
helm install external-data-provider charts/external-data-provider \
--set provider.tls.caBundle="$(cat certs/ca.crt | base64 | tr -d '\n\r')" \
--namespace gatekeeper-system \
--wait --debug
- name: Run e2e
run: |
bats -t test/bats/test.bats

24
.gitignore vendored Normal file
View File

@@ -0,0 +1,24 @@
# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/
# certificate directory
certs/
# golangci-lint cachce
.tmp/
# binary output
bin/

42
.golangci.yaml Normal file
View File

@@ -0,0 +1,42 @@
run:
timeout: 5m
linters-settings:
gocritic:
enabled-tags:
- performance
gosec:
excludes:
- G108
lll:
line-length: 200
misspell:
locale: US
staticcheck:
# Select the Go version to target. The default is '1.13'.
go: "1.19"
linters:
disable-all: true
enable:
- errcheck
- exportloopref
- forcetypeassert
- gocritic
- goconst
- godot
- gofmt
- gofumpt
- goimports
- gosec
- gosimple
- govet
- importas
- ineffassign
- misspell
- revive # replacement for golint
- staticcheck
- typecheck
- unused
- whitespace

3
CODE_OF_CONDUCT.md Normal file
View File

@@ -0,0 +1,3 @@
## Community Code of Conduct
We follow the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).

6
CONTRIBUTING.md Normal file
View File

@@ -0,0 +1,6 @@
# Contributing
Thanks for your interest in contributing to the Open Policy Agent (OPA) Gatekeeper project!
Please refer to [Gatekeeper's contribution guide](https://open-policy-agent.github.io/gatekeeper/website/docs/help)
to find out how you can help.

37
Dockerfile Normal file
View File

@@ -0,0 +1,37 @@
ARG BUILDPLATFORM="linux/amd64"
ARG BUILDERIMAGE="golang:1.19-bullseye"
ARG BASEIMAGE="gcr.io/distroless/static:nonroot"
FROM --platform=${BUILDPLATFORM} ${BUILDERIMAGE} as builder
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH
ARG TARGETVARIANT=""
ARG LDFLAGS
ENV GO111MODULE=on \
CGO_ENABLED=0 \
GOOS=${TARGETOS} \
GOARCH=${TARGETARCH} \
GOARM=${TARGETVARIANT}
WORKDIR /go/src/github.com/open-policy-agent/gatekeeper-external-data-provider
COPY . .
RUN make build
FROM ${BASEIMAGE}
WORKDIR /
COPY --from=builder /go/src/github.com/open-policy-agent/gatekeeper-external-data-provider/bin/provider .
COPY --from=builder --chown=65532:65532 /go/src/github.com/open-policy-agent/gatekeeper-external-data-provider/certs/tls.crt \
/go/src/github.com/open-policy-agent/gatekeeper-external-data-provider/certs/tls.key \
/certs/
USER 65532:65532
ENTRYPOINT ["/provider"]

201
LICENSE Normal file
View File

@@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

37
Makefile Normal file
View File

@@ -0,0 +1,37 @@
REPOSITORY ?= openpolicyagent/gatekeeper-external-data-provider
IMG := $(REPOSITORY):dev
# When updating this, make sure to update the corresponding action in
# workflow.yaml
GOLANGCI_LINT_VERSION := v1.50.0
# Detects the location of the user golangci-lint cache.
GOLANGCI_LINT_CACHE := $(shell pwd)/.tmp/golangci-lint
.PHONY: build
build:
go build -o bin/provider main.go
# lint runs a dockerized golangci-lint, and should give consistent results
# across systems.
# Source: https://golangci-lint.run/usage/install/#docker
.PHONY: lint
lint:
docker run --rm -v $(shell pwd):/app \
-v ${GOLANGCI_LINT_CACHE}:/root/.cache/golangci-lint \
-w /app golangci/golangci-lint:${GOLANGCI_LINT_VERSION}-alpine \
golangci-lint run -v
.PHONY: docker-buildx-builder
docker-buildx-builder:
if ! docker buildx ls | grep -q container-builder; then\
docker buildx create --name container-builder --use;\
fi
.PHONY: docker-buildx
docker-buildx: docker-buildx-builder
docker buildx build --load -t ${IMG} .
.PHONY: kind-load-image
kind-load-image:
kind load docker-image ${IMG} --name gatekeeper

115
README.md Normal file
View File

@@ -0,0 +1,115 @@
# External Data Provider
A template repository for building external data providers for Gatekeeper.
## Prerequisites
- [ ] [`docker`](https://docs.docker.com/get-docker/)
- [ ] [`helm`](https://helm.sh/)
- [ ] [`kind`](https://kind.sigs.k8s.io/)
- [ ] [`kubectl`](https://kubernetes.io/docs/tasks/tools/#kubectl)
## Quick Start
1. Create a [kind cluster](https://kind.sigs.k8s.io/docs/user/quick-start/).
2. Install the latest version of Gatekeeper and enable the external data feature.
```bash
# Add the Gatekeeper Helm repository
helm repo add gatekeeper https://open-policy-agent.github.io/gatekeeper/charts
# Install the latest version of Gatekeeper with the external data feature enabled.
helm install gatekeeper/gatekeeper \
--set enableExternalData=true \
--name-template=gatekeeper \
--namespace gatekeeper-system \
--create-namespace
```
3. Build and deploy the external data provider.
```bash
git clone https://github.com/open-policy-agent/gatekeeper-external-data-provider.git
cd external-data-provider
# if you are not planning to establish mTLS between the provider and Gatekeeper,
# deploy the provider to a separate namespace. Otherwise, do not run the following command
# and deploy the provider to the same namespace as Gatekeeper.
export NAMESPACE=provider-system
# generate a self-signed certificate for the external data provider
./scripts/generate-tls-cert.sh
# build the image via docker buildx
make docker-buildx
# load the image into kind
make kind-load-image
# Choose one of the following ways to deploy the external data provider:
# 1. client and server auth enabled (recommended)
helm install external-data-provider charts/external-data-provider \
--set provider.tls.caBundle="$(cat certs/ca.crt | base64 | tr -d '\n\r')" \
--namespace "${NAMESPACE:-gatekeeper-system}"
# 2. client auth disabled and server auth enabled
helm install external-data-provider charts/external-data-provider \
--set clientCAFile="" \
--set provider.tls.caBundle="$(cat certs/ca.crt | base64 | tr -d '\n\r')" \
--namespace "${NAMESPACE:-gatekeeper-system}" \
--create-namespace
```
4a. Install constraint template and constraint.
```bash
kubectl apply -f validation/external-data-provider-constraint-template.yaml
kubectl apply -f validation/external-data-provider-constraint.yaml
```
4b. Test the external data provider by dry-running the following command:
```bash
kubectl run nginx --image=error_nginx --dry-run=server -ojson
```
Gatekeeper should deny the pod admission above because the image field has an `error_nginx` prefix.
```console
Error from server (Forbidden): admission webhook "validation.gatekeeper.sh" denied the request: [deny-images-with-invalid-suffix] invalid response: {"errors": [["error_nginx", "error_nginx_invalid"]], "responses": [], "status_code": 200, "system_error": ""}
```
5a. Install Assign mutation.
```bash
kubectl apply -f mutation/external-data-provider-mutation.yaml
```
5b. Test the external data provider by dry-running the following command:
```bash
kubectl run nginx --image=nginx --dry-run=server -ojson
```
The expected JSON output should have the following image field with `_valid` appended by the external data provider:
```json
"containers": [
{
"name": "nginx",
"image": "nginx_valid",
...
}
]
```
6. Uninstall the external data provider and Gatekeeper.
```bash
kubectl delete -f validation/
kubectl delete -f mutation/
helm uninstall external-data-provider --namespace "${NAMESPACE:-gatekeeper-system}"
helm uninstall gatekeeper --namespace gatekeeper-system
```

3
SECURITY.md Normal file
View File

@@ -0,0 +1,3 @@
# Security
See [https://github.com/open-policy-agent/opa/blob/main/SECURITY.md](https://github.com/open-policy-agent/opa/blob/main/SECURITY.md)

21
charts/external-data-provider/.helmignore Normal file
View File

@@ -0,0 +1,21 @@
# Patterns to ignore when building packages.
# This supports shell glob matching, relative path matching, and
# negation (prefixed with !). Only one pattern per line.
.DS_Store
# Common VCS dirs
.git/
.gitignore
.bzr/
.bzrignore
.hg/
.hgignore
.svn/
# Common backup files
*.swp
*.bak
*.tmp
*~
# Various IDEs
.project
.idea/
*.tmproj

8
charts/external-data-provider/Chart.yaml Normal file
View File

@@ -0,0 +1,8 @@
apiVersion: v2
description: A Helm chart for a template external data provider
name: external-data-provider
version: 0.0.2
home: https://github.com/open-policy-agent/gatekeeper-external-data-provider
sources:
- https://github.com/open-policy-agent/gatekeeper-external-data-provider.git
appVersion: 0.0.2

0
charts/external-data-provider/README.md Normal file
View File

57
charts/external-data-provider/templates/external-data-provider-deployment.yaml Normal file
View File

@@ -0,0 +1,57 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: external-data-provider
namespace: {{ .Release.Namespace }}
spec:
replicas: 1
selector:
matchLabels:
run: external-data-provider
template:
metadata:
labels:
run: external-data-provider
spec:
containers:
- image: openpolicyagent/gatekeeper-external-data-provider:dev
imagePullPolicy: IfNotPresent
name: external-data-provider
securityContext:
allowPrivilegeEscalation: false
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
runAsGroup: 65532
runAsNonRoot: true
runAsUser: 65532
seccompProfile:
type: RuntimeDefault
args:
- --cert-dir={{ .Values.certDir }}
{{- if .Values.clientCAFile }}
- --client-ca-file={{ .Values.clientCAFile }}
{{- end }}
- --port={{ .Values.port }}
ports:
- containerPort: {{ .Values.port }}
protocol: TCP
{{- if .Values.clientCAFile }}
volumeMounts:
- name: gatekeeper-ca-cert
mountPath: /tmp/gatekeeper
readOnly: true
{{- end }}
restartPolicy: Always
nodeSelector:
kubernetes.io/os: linux
{{- if .Values.clientCAFile }}
volumes:
- name: gatekeeper-ca-cert
secret:
secretName: gatekeeper-webhook-server-cert
items:
- key: ca.crt
path: ca.crt
{{- end }}

13
charts/external-data-provider/templates/external-data-provider-service.yaml Normal file
View File

@@ -0,0 +1,13 @@
apiVersion: v1
kind: Service
metadata:
name: external-data-provider
namespace: {{ .Release.Namespace }}
spec:
ports:
- port: {{ .Values.port }}
protocol: TCP
targetPort: {{ .Values.port }}
selector:
run: external-data-provider
sessionAffinity: None

8
charts/external-data-provider/templates/external-data-provider.yaml Normal file
View File

@@ -0,0 +1,8 @@
apiVersion: externaldata.gatekeeper.sh/v1beta1
kind: Provider
metadata:
name: external-data-provider
spec:
url: https://external-data-provider.{{ .Release.Namespace }}:{{ .Values.port }}
timeout: {{ .Values.provider.timeout }}
caBundle: {{ required "You must provide .Values.provider.tls.caBundle" .Values.provider.tls.caBundle }}

7
charts/external-data-provider/values.yaml Normal file
View File

@@ -0,0 +1,7 @@
certDir: /certs
clientCAFile: /tmp/gatekeeper/ca.crt
port: 8090
provider:
timeout: 1
tls:
caBundle: ""

32
go.mod Normal file
View File

@@ -0,0 +1,32 @@
module github.com/open-policy-agent/gatekeeper-external-data-provider
go 1.18
require (
github.com/open-policy-agent/frameworks/constraint v0.0.0-20221214024800-b745745c4118
k8s.io/klog/v2 v2.60.1
)
require (
github.com/OneOfOne/xxhash v1.2.8 // indirect
github.com/ghodss/yaml v1.0.0 // indirect
github.com/go-logr/logr v1.2.3 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/google/gofuzz v1.2.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/open-policy-agent/opa v0.47.2 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
golang.org/x/net v0.7.0 // indirect
golang.org/x/text v0.7.0 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
k8s.io/apimachinery v0.24.7 // indirect
k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 // indirect
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 // indirect
sigs.k8s.io/structured-merge-diff/v4 v4.2.1 // indirect
)

259
go.sum Normal file
View File

@@ -0,0 +1,259 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
github.com/OneOfOne/xxhash v1.2.8 h1:31czK/TI9sNkxIKfaUfGlU47BAxQ0ztGgd9vPyqimf8=
github.com/OneOfOne/xxhash v1.2.8/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
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 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/evanphx/json-patch v4.12.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/getkin/kin-openapi v0.76.0/go.mod h1:660oXbgy5JFMKreazJaQTw7o+X00qeSyhcnluiMv+Xg=
github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=
github.com/go-logr/logr v0.2.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
github.com/go-openapi/jsonreference v0.19.3/go.mod h1:rjx6GuL8TTa9VaixXglHmQmIL98+wF9xc8zWvFonSJ8=
github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/google/gnostic v0.5.7-v3refs/go.mod h1:73MKFl6jIHelAJNaBGFzt3SPtZULs9dYrGFt8OiIsHQ=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/gofuzz v1.1.0/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 v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
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 v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
github.com/moby/spdystream v0.2.0/go.mod h1:f7i0iNDQJ059oMTcWxx8MA/zKFIuD/lY+0GqbN2Wy8c=
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 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
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/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
github.com/onsi/ginkgo v1.14.0/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
github.com/open-policy-agent/frameworks/constraint v0.0.0-20221214024800-b745745c4118 h1:2i9k9I69KX48JTWxp+u4kfMRNgoP50A6uPPqo93uhow=
github.com/open-policy-agent/frameworks/constraint v0.0.0-20221214024800-b745745c4118/go.mod h1:sN/YfAskVfaDy234+bETlOymFLDoLdJZvMdACwenxc8=
github.com/open-policy-agent/opa v0.47.2 h1:9QmIumL6MRPYoXboBDSU/c1fG2PN5J4lo800RK36jrc=
github.com/open-policy-agent/opa v0.47.2/go.mod h1:I5DbT677OGqfk9gvu5i54oIt0rrVf4B5pedpqDquAXo=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 h1:N/ElC8H3+5XpJzTSTfLsJV/mx9Q9g7kxmchpfZyxgzM=
github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb h1:zGWFAtiMcyryUHoUjUJX0/lt1H2+i2Ka2n+D3DImSNo=
github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHovont7NscjpAxXsDA8S8BMYve8Y5+7cuRE7R0=
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
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/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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 v0.0.0-20190827160401-ba9fcec4b297/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 v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220209214540-3681064d5158/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200505023115-26f46d2f7ef8/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
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/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
google.golang.org/genproto v0.0.0-20201019141844-1ed22bb0c154/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
k8s.io/apimachinery v0.24.7 h1:CYJ+iRJkNFWWdUz5XodHkA6Yk5nRTbudvvQDVGxtuqc=
k8s.io/apimachinery v0.24.7/go.mod h1:WR5z9Lpw2mOAeDg20iSSrEBRQMY0p2YXVdYpUIgSr4o=
k8s.io/gengo v0.0.0-20210813121822-485abfe95c7c/go.mod h1:FiNAH4ZV3gBg2Kwh89tzAEV2be7d5xI0vBa/VySYy3E=
k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
k8s.io/klog/v2 v2.2.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
k8s.io/klog/v2 v2.60.1 h1:VW25q3bZx9uE3vvdL6M8ezOX79vA2Aq1nEWLqNQclHc=
k8s.io/klog/v2 v2.60.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42/go.mod h1:Z/45zLw8lUo4wdiUkI+v/ImEGAvu3WatcZl3lPMR4Rk=
k8s.io/utils v0.0.0-20210802155522-efc7438f0176/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 h1:HNSDgDCrr/6Ly3WEGKZftiE7IY19Vz2GdbOCyI4qqhc=
k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
sigs.k8s.io/structured-merge-diff/v4 v4.2.1 h1:bKCqE9GvQ5tiVHn5rfn1r+yao3aLQEaLzkkmAkf+A6Y=
sigs.k8s.io/structured-merge-diff/v4 v4.2.1/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=

105
main.go Normal file
View File

@@ -0,0 +1,105 @@
package main
import (
"context"
"crypto/tls"
"crypto/x509"
"flag"
"fmt"
"net/http"
"os"
"path/filepath"
"time"
"github.com/open-policy-agent/gatekeeper-external-data-provider/pkg/handler"
"github.com/open-policy-agent/gatekeeper-external-data-provider/pkg/utils"
"k8s.io/klog/v2"
)
const (
timeout = 1 * time.Second
defaultPort = 8090
certName = "tls.crt"
keyName = "tls.key"
)
var (
certDir string
clientCAFile string
port int
)
func init() {
klog.InitFlags(nil)
flag.StringVar(&certDir, "cert-dir", "", "path to directory containing TLS certificates")
flag.StringVar(&clientCAFile, "client-ca-file", "", "path to client CA certificate")
flag.IntVar(&port, "port", defaultPort, "Port for the server to listen on")
flag.Parse()
}
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/", processTimeout(handler.Handler, timeout))
server := &http.Server{
Addr: fmt.Sprintf(":%d", port),
Handler: mux,
ReadHeaderTimeout: time.Duration(5) * time.Second,
}
config := &tls.Config{
MinVersion: tls.VersionTLS13,
}
if clientCAFile != "" {
klog.InfoS("loading Gatekeeper's CA certificate", "clientCAFile", clientCAFile)
caCert, err := os.ReadFile(clientCAFile)
if err != nil {
klog.ErrorS(err, "unable to load Gatekeeper's CA certificate", "clientCAFile", clientCAFile)
os.Exit(1)
}
clientCAs := x509.NewCertPool()
clientCAs.AppendCertsFromPEM(caCert)
config.ClientCAs = clientCAs
config.ClientAuth = tls.RequireAndVerifyClientCert
server.TLSConfig = config
}
if certDir != "" {
certFile := filepath.Join(certDir, certName)
keyFile := filepath.Join(certDir, keyName)
klog.InfoS("starting external data provider server", "port", port, "certFile", certFile, "keyFile", keyFile)
if err := server.ListenAndServeTLS(certFile, keyFile); err != nil {
klog.ErrorS(err, "unable to start external data provider server")
os.Exit(1)
}
} else {
klog.Error("TLS certificates are not provided, the server will not be started")
os.Exit(1)
}
}
func processTimeout(h http.HandlerFunc, duration time.Duration) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
ctx, cancel := context.WithTimeout(r.Context(), duration)
defer cancel()
r = r.WithContext(ctx)
processDone := make(chan bool)
go func() {
h(w, r)
processDone <- true
}()
select {
case <-ctx.Done():
utils.SendResponse(nil, "operation timed out", w)
case <-processDone:
}
}
}

20
mutation/external-data-provider-mutation.yaml Normal file
View File

@@ -0,0 +1,20 @@
apiVersion: mutations.gatekeeper.sh/v1beta1
kind: Assign
metadata:
name: append-valid-suffix-to-image
spec:
applyTo:
- groups: [""]
kinds: ["Pod"]
versions: ["v1"]
match:
scope: Namespaced
kinds:
- apiGroups: ["*"]
kinds: ["Pod"]
location: "spec.containers[name: *].image"
parameters:
assign:
externalData:
provider: external-data-provider
dataSource: ValueAtLocation

66
pkg/handler/handler.go Normal file
View File

@@ -0,0 +1,66 @@
package handler
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"github.com/open-policy-agent/frameworks/constraint/pkg/externaldata"
"github.com/open-policy-agent/gatekeeper-external-data-provider/pkg/utils"
"k8s.io/klog/v2"
)
func Handler(w http.ResponseWriter, req *http.Request) {
// only accept POST requests
if req.Method != http.MethodPost {
utils.SendResponse(nil, "only POST is allowed", w)
return
}
// read request body
requestBody, err := io.ReadAll(req.Body)
if err != nil {
utils.SendResponse(nil, fmt.Sprintf("unable to read request body: %v", err), w)
return
}
klog.InfoS("received request", "body", requestBody)
// parse request body
var providerRequest externaldata.ProviderRequest
err = json.Unmarshal(requestBody, &providerRequest)
if err != nil {
utils.SendResponse(nil, fmt.Sprintf("unable to unmarshal request body: %v", err), w)
return
}
results := make([]externaldata.Item, 0)
// iterate over all keys
for _, key := range providerRequest.Request.Keys {
// Providers should add a caching mechanism to avoid extra calls to external data sources.
// following checks are for testing purposes only
// check if key contains "_systemError" to trigger a system error
if strings.HasSuffix(key, "_systemError") {
utils.SendResponse(nil, "testing system error", w)
return
}
// check if key contains "error_" to trigger an error
if strings.HasPrefix(key, "error_") {
results = append(results, externaldata.Item{
Key: key,
Error: key + "_invalid",
})
} else if !strings.HasSuffix(key, "_valid") {
// valid key will have "_valid" appended as return value
results = append(results, externaldata.Item{
Key: key,
Value: key + "_valid",
})
}
}
utils.SendResponse(&results, "", w)
}

40
pkg/utils/utils.go Normal file
View File

@@ -0,0 +1,40 @@
package utils
import (
"encoding/json"
"net/http"
"os"
"github.com/open-policy-agent/frameworks/constraint/pkg/externaldata"
"k8s.io/klog/v2"
)
const (
apiVersion = "externaldata.gatekeeper.sh/v1beta1"
kind = "ProviderResponse"
)
// sendResponse sends back the response to Gatekeeper.
func SendResponse(results *[]externaldata.Item, systemErr string, w http.ResponseWriter) {
response := externaldata.ProviderResponse{
APIVersion: apiVersion,
Kind: kind,
Response: externaldata.Response{
Idempotent: true, // mutation requires idempotent results
},
}
if results != nil {
response.Response.Items = *results
} else {
response.Response.SystemError = systemErr
}
klog.InfoS("sending response", "response", response)
w.WriteHeader(http.StatusOK)
if err := json.NewEncoder(w).Encode(response); err != nil {
klog.ErrorS(err, "unable to encode response")
os.Exit(1)
}
}

27
scripts/generate-tls-cert.sh Executable file
View File

@@ -0,0 +1,27 @@
#!/usr/bin/env bash
set -o errexit
set -o nounset
set -o pipefail
REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
cd "${REPO_ROOT}" || exit 1
NAMESPACE=${NAMESPACE:-gatekeeper-system}
generate() {
# generate CA key and certificate
echo "Generating CA key and certificate for external-data-provider..."
openssl genrsa -out ca.key 2048
openssl req -new -x509 -days 1 -key ca.key -subj "/O=Gatekeeper/CN=Gatekeeper Root CA" -out ca.crt
# generate server key and certificate
echo "Generating server key and certificate for external-data-provider..."
openssl genrsa -out tls.key 2048
openssl req -newkey rsa:2048 -nodes -keyout tls.key -subj "/CN=external-data-provider.${NAMESPACE}" -out server.csr
openssl x509 -req -extfile <(printf "subjectAltName=DNS:external-data-provider.%s" "${NAMESPACE}") -days 1 -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out tls.crt
}
mkdir -p "${REPO_ROOT}/certs"
pushd "${REPO_ROOT}/certs"
generate
popd

140
test/bats/helpers.bash Normal file
View File

@@ -0,0 +1,140 @@
#!/bin/bash
assert_success() {
if [[ "$status" != 0 ]]; then
echo "expected: 0"
echo "actual: $status"
echo "output: $output"
return 1
fi
}
assert_failure() {
if [[ "$status" == 0 ]]; then
echo "expected: non-zero exit code"
echo "actual: $status"
echo "output: $output"
return 1
fi
}
assert_equal() {
if [[ "$1" != "$2" ]]; then
echo "expected: $1"
echo "actual: $2"
return 1
fi
}
assert_not_equal() {
if [[ "$1" == "$2" ]]; then
echo "unexpected: $1"
echo "actual: $2"
return 1
fi
}
assert_match() {
if [[ ! "$2" =~ $1 ]]; then
echo "expected: $1"
echo "actual: $2"
return 1
fi
}
assert_not_match() {
if [[ "$2" =~ $1 ]]; then
echo "expected: $1"
echo "actual: $2"
return 1
fi
}
assert_len() {
if [[ "$1" != "${#2}" ]]; then
echo "expected len: $1"
echo "actual len: ${#2} ($2)"
return 1
fi
}
wait_for_process() {
wait_time="$1"
sleep_time="$2"
cmd="$3"
while [ "$wait_time" -gt 0 ]; do
if eval "$cmd"; then
return 0
else
sleep "$sleep_time"
wait_time=$((wait_time - sleep_time))
fi
done
return 1
}
get_ca_cert() {
destination="$1"
if [ $(kubectl get secret -n ${GATEKEEPER_NAMESPACE} gatekeeper-webhook-server-cert -o jsonpath='{.data.ca\.crt}' | wc -w) -eq 0 ]; then
return 1
fi
kubectl get secret -n ${GATEKEEPER_NAMESPACE} gatekeeper-webhook-server-cert -o jsonpath='{.data.ca\.crt}' | base64 -d >$destination
}
constraint_enforced() {
local kind="$1"
local name="$2"
local pod_list="$(kubectl -n ${GATEKEEPER_NAMESPACE} get pod -l gatekeeper.sh/operation=webhook -o json)"
if [[ $? -ne 0 ]]; then
echo "error gathering pods"
return 1
fi
# ensure pod_count is at least one
local pod_count=$(echo "${pod_list}" | jq '.items | length')
if [[ ${pod_count} -lt 1 ]]; then
echo "Gatekeeper pod count is < 1"
return 2
fi
local cstr="$(kubectl get ${kind} ${name} -ojson)"
if [[ $? -ne 0 ]]; then
echo "Error gathering constraint ${kind} ${name}"
return 3
fi
echo "checking constraint ${cstr}"
local ready_count=$(echo "${cstr}" | jq '.metadata.generation as $generation | [.status.byPod[] | select( .operations[] == "webhook" and .observedGeneration == $generation)] | length')
echo "ready: ${ready_count}, expected: ${pod_count}"
[[ "${ready_count}" -eq "${pod_count}" ]]
}
mutator_enforced() {
local kind="$1"
local name="$2"
local pod_list="$(kubectl -n ${GATEKEEPER_NAMESPACE} get pod -l gatekeeper.sh/operation=webhook -o json)"
if [[ $? -ne 0 ]]; then
echo "error gathering pods"
return 1
fi
# ensure pod_count is at least one
local pod_count=$(echo "${pod_list}" | jq '.items | length')
if [[ ${pod_count} -lt 1 ]]; then
echo "Gatekeeper pod count is < 1"
return 2
fi
local cstr="$(kubectl get ${kind} ${name} -ojson)"
if [[ $? -ne 0 ]]; then
echo "Error gathering mutator ${kind} ${name}"
return 3
fi
echo "checking mutator ${cstr}"
local ready_count=$(echo "${cstr}" | jq '.metadata.generation as $generation | [.status.byPod[] | select( .operations[] == "mutation-webhook" and .observedGeneration == $generation)] | length')
echo "ready: ${ready_count}, expected: ${pod_count}"
[[ "${ready_count}" -eq "${pod_count}" ]]
}

51
test/bats/test.bats Normal file
View File

@@ -0,0 +1,51 @@
#!/usr/bin/env bats
load helpers
WAIT_TIME=120
SLEEP_TIME=1
GATEKEEPER_NAMESPACE=${GATEKEEPER_NAMESPACE:-gatekeeper-system}
teardown_file() {
kubectl delete -f validation/
kubectl delete -f mutation/
}
@test "gatekeeper-controller-manager is running" {
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "kubectl -n ${GATEKEEPER_NAMESPACE} wait --for=condition=Ready --timeout=60s pod -l control-plane=controller-manager"
}
@test "gatekeeper-audit is running" {
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "kubectl -n ${GATEKEEPER_NAMESPACE} wait --for=condition=Ready --timeout=60s pod -l control-plane=audit-controller"
}
@test "external-data-provider is running" {
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "kubectl -n ${GATEKEEPER_NAMESPACE} wait --for=condition=Ready --timeout=60s pod -l run=external-data-provider"
}
@test "external data validation" {
run kubectl apply -f validation/external-data-provider-constraint-template.yaml
assert_success
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "constraint_enforced constrainttemplate k8sexternaldatavalidation"
run kubectl apply -f validation/external-data-provider-constraint.yaml
assert_success
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "constraint_enforced k8sexternaldatavalidation deny-images-with-invalid-suffix"
run kubectl run nginx --image=error_nginx --dry-run=server
# should deny pod admission if the image name has an "error_" prefix
assert_failure
assert_match 'error_nginx' "${output}"
assert_match 'error_nginx_invalid' "${output}"
}
@test "external data mutation" {
run kubectl apply -f mutation/external-data-provider-mutation.yaml
assert_success
wait_for_process ${WAIT_TIME} ${SLEEP_TIME} "mutator_enforced Assign append-valid-suffix-to-image"
run kubectl run nginx --image=nginx --dry-run=server --output json
assert_success
# should mutate the image field by appending "_valid" suffix
assert_match "nginx_valid" "$(jq -r '.spec.containers[0].image' <<< ${output})"
}

35
validation/external-data-provider-constraint-template.yaml Normal file
View File

@@ -0,0 +1,35 @@
apiVersion: templates.gatekeeper.sh/v1
kind: ConstraintTemplate
metadata:
name: k8sexternaldatavalidation
spec:
crd:
spec:
names:
kind: K8sExternalDataValidation
targets:
- target: admission.k8s.gatekeeper.sh
rego: |
package k8sexternaldata
violation[{"msg": msg}] {
# build a list of keys containing images
images := [img | img = input.review.object.spec.containers[_].image]
# send external data request
response := external_data({"provider": "external-data-provider", "keys": images})
response_with_error(response)
msg := sprintf("invalid response: %v", [response])
}
response_with_error(response) {
count(response.errors) > 0
errs := response.errors[_]
contains(errs[1], "_invalid")
}
response_with_error(response) {
count(response.system_error) > 0
}

10
validation/external-data-provider-constraint.yaml Normal file
View File

@@ -0,0 +1,10 @@
apiVersion: constraints.gatekeeper.sh/v1beta1
kind: K8sExternalDataValidation
metadata:
name: deny-images-with-invalid-suffix
spec:
enforcementAction: deny
match:
kinds:
- apiGroups: ["*"]
kinds: ["Pod"]