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clair helm chart MVP #1

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29 changes: 29 additions & 0 deletions .github/workflows/cd-helm-release.yml
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name: Release Chart

on:
push:
branches:
- main

jobs:
release:
permissions:
contents: write
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v3
with:
fetch-depth: 0

- name: Configure Git
run: |
git config user.name "$GITHUB_ACTOR"
git config user.email "$GITHUB_ACTOR@users.noreply.github.com"

- name: Run chart-releaser
uses: helm/chart-releaser-action@v1.5.0
with:
config: charts/cr.yaml
env:
CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
47 changes: 47 additions & 0 deletions .github/workflows/ci-helm-lint-test.yml
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name: Lint and Test Chart

on:
pull_request:
paths:
- 'charts/**'

permissions:
contents: read

jobs:
lint:
name: Lint
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v3
with:
fetch-depth: "0"

- name: Install Helm
uses: azure/setup-helm@v3.5

- name: Set up chart-testing
uses: helm/chart-testing-action@v2.6.0

- name: Run chart-testing (list-changed)
id: list-changed
run: |
changed=$(ct list-changed --config charts/ct.yaml)
if [[ -n "$changed" ]]; then
echo "changed=true" >> "$GITHUB_OUTPUT"
fi

- name: Run chart-testing (lint)
id: lint
if: steps.list-changed.outputs.changed == 'true'
run: ct lint --config charts/ct.yaml

- name: Create kind cluster
uses: helm/kind-action@v1.8.0
if: steps.list-changed.outputs.changed == 'true'

- name: Run chart-testing (install)
id: install
if: steps.list-changed.outputs.changed == 'true'
run: ct install --config charts/ct.yaml
2 changes: 2 additions & 0 deletions .gitignore
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@@ -0,0 +1,2 @@
readme-gen
k8s.yaml
10 changes: 10 additions & 0 deletions CONTRIBUTING.md
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@@ -0,0 +1,10 @@

# Contributing

## Certificate of Origin

By contributing to this project you agree to the Developer Certificate of Origin [DCO](../DCO).

This document was created by the Linux Kernel community and is a simple statement that you, as a contributor, have the legal right to make the contribution.

See the [DCO](../DCO) file for details.
8 changes: 8 additions & 0 deletions Makefile
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@@ -0,0 +1,8 @@

lint:
ct lint --config charts/ct.yaml

test:
ct install --config charts/ct.yaml

.PHONY: lint test
60 changes: 58 additions & 2 deletions README.md
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@@ -1,2 +1,58 @@
# helm-clair
Helm chart for Clair

# clair-helm

[![MIT Licensed](https://img.shields.io/github/license/guerzon/clair-helm)](https://github.com/guerzon/clair-helm/blob/main/LICENSE)
[![Helm Release](https://img.shields.io/github/v/release/guerzon/clair-helm)](https://github.com/guerzon/clair-helm/releases)

Helm chart for [Clair](https://github.com/quay/clair).

## Warning

If you happen to stumble upon this repo, please be aware that this is a work in progress. Therefore, please assume version < 1.0.0 to be unstable. Or as long as you see this warning message.

Also, it's a passion project, so please bear with me.

## Features / TODO

1. Supports running in `combo` mode (default).
2. Supports running on a single instance with the DB split per mode.
3. Supports running multiple instances.

## Usage

Add the repository:

```bash
helm repo add clair https://guerzon.github.io/clair
```

List the chart:

```bash
helm search repo clair
```

Please refer to the [detailed documentation](./charts/clair/README.md) to get started.

## Testing

If not using an ingresss:

```bash
kubectl -n clair port-forward service/clair 6060:6060

## Test the vaultwarden/server image:
clairctl report --host http://localhost:6060 vaultwarden/server
```

## References

- <https://github.com/quay/clair/tree/main/local-dev>
- <https://quay.github.io/clair/howto/deployment.html>
- <https://quay.github.io/clair/reference/config.html>
- <https://quay.io/repository/projectquay/clair?tab=info>
- <https://github.com/quay/clair/issues/1152>

## License

See [LICENSE](./LICENSE).
14 changes: 14 additions & 0 deletions chart-docs.sh
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#!/usr/bin/env bash

echo "[+] Setting up ..."
if [ ! -d "readme-gen" ]; then
git clone https://github.com/bitnami-labs/readme-generator-for-helm readme-gen
fi
cd readme-gen
docker build -t readme-gen .
cd ..

echo "[+] Run the tool and mount the current project directory ..."
docker run --rm -v $(pwd):/mnt -w /mnt readme-gen readme-generator -v charts/clair/values.yaml -r charts/clair/README.md

echo "Done"
23 changes: 23 additions & 0 deletions charts/clair/.helmignore
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# 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
*.orig
*~
# Various IDEs
.project
.idea/
*.tmproj
.vscode/
41 changes: 41 additions & 0 deletions charts/clair/Chart.yaml
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apiVersion: v2
name: clair
description: Vulnerability Static Analysis for Containers

# A chart can be either an 'application' or a 'library' chart.
#
# Application charts are a collection of templates that can be packaged into versioned archives
# to be deployed.
#
# Library charts provide useful utilities or functions for the chart developer. They're included as
# a dependency of application charts to inject those utilities and functions into the rendering
# pipeline. Library charts do not define any templates and therefore cannot be deployed.
type: application

# This is the chart version. This version number should be incremented each time you make changes
# to the chart and its templates, including the app version.
# Versions are expected to follow Semantic Versioning (https://semver.org/)
version: 0.0.2

# This is the version number of the application being deployed. This version number should be
# incremented each time you make changes to the application. Versions are not expected to
# follow Semantic Versioning. They should reflect the version the application is using.
# It is recommended to use it with quotes.
appVersion: "4.7.2"

kubeVersion: ">=1.26.0-0"

maintainers:
- name: guerzon
email: guerzon@proton.me
url: https://github.com/guerzon

keywords:
- clair
- static-analysis
- containers
- vulnerabilities

sources:
- https://github.com/guerzon/clair-helm
- https://github.com/quay/clair
60 changes: 60 additions & 0 deletions charts/clair/README.md
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# clair

Vulnerability Static Analysis for Containers

## TL;DR

```bash
# install:
helm install clair clair/clair \
--create-namespace \
--namespace clair \
--set "database.host=prod.contoso.org" \
--set "database.dbName=clairdb" \
--set "database.user=app" \
--set "database.user=Supers3cret"
```

Using a custom values in the file `demo.yaml`:

```bash
helm upgrade -i clair clair/clair \
--create-namespace \
--namespace clair \
-f demo.yaml
```

## Detailed guide

### General configuration

This chart deploys `clair` from pre-built images on [quay.io](https://quay.io/repository/projectquay/clair). The image can be defined by specifying the tag with `image.tag`.

Here is an example that uses the nightly image build `nightly` and an existing secret that contains registry credentials:

```yaml
image:
tag: "nightly"
pullSecrets:
- myRegKey
```

### Database options

Clair requires PostgreSQL for its data persistence. By default, it does migrations, so all you need is to point it to a database.

To configure, set `database.type` to either `mysql` or `postgresql` and specify the datase connection information.

Example for using an external MySQL database:

```yaml
database:
host: database.contoso.eu
username: appuser
password: apppassword
dbName: prodapp
sslMode: disable
```

## Parameters
22 changes: 22 additions & 0 deletions charts/clair/templates/NOTES.txt
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1. Get the application URL by running these commands:
{{- if .Values.ingress.enabled }}
{{- range $host := .Values.ingress.hosts }}
{{- range .paths }}
http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
{{- end }}
{{- end }}
{{- else if contains "NodePort" .Values.service.type }}
export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "clair.fullname" . }})
export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT
{{- else if contains "LoadBalancer" .Values.service.type }}
NOTE: It may take a few minutes for the LoadBalancer IP to be available.
You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "clair.fullname" . }}'
export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "clair.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
echo http://$SERVICE_IP:{{ .Values.service.port }}
{{- else if contains "ClusterIP" .Values.service.type }}
export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "clair.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
echo "Visit http://127.0.0.1:8080 to use your application"
kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
{{- end }}
62 changes: 62 additions & 0 deletions charts/clair/templates/_helpers.tpl
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{{/*
Expand the name of the chart.
*/}}
{{- define "clair.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
{{- end }}

{{/*
Create a default fully qualified app name.
We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
If release name contains chart name it will be used as a full name.
*/}}
{{- define "clair.fullname" -}}
{{- if .Values.fullnameOverride }}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- $name := default .Chart.Name .Values.nameOverride }}
{{- if contains $name .Release.Name }}
{{- .Release.Name | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
{{- end }}
{{- end }}
{{- end }}

{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "clair.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
{{- end }}

{{/*
Common labels
*/}}
{{- define "clair.labels" -}}
helm.sh/chart: {{ include "clair.chart" . }}
{{ include "clair.selectorLabels" . }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end }}

{{/*
Selector labels
*/}}
{{- define "clair.selectorLabels" -}}
app.kubernetes.io/name: {{ include "clair.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}

{{/*
Create the name of the service account to use
*/}}
{{- define "clair.serviceAccountName" -}}
{{- if .Values.serviceAccount.create }}
{{- default (include "clair.fullname" .) .Values.serviceAccount.name }}
{{- else }}
{{- default "default" .Values.serviceAccount.name }}
{{- end }}
{{- end }}
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