KropCloud/cert-manager-webhook-example
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remove example helm chart as we move it to containeroo charts

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Robin Scherrer 2021-03-10 15:57:39 +01:00
parent 1b6eb43298
commit 409e6cd1bb
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21
deploy/example-webhook/.helmignore
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@ -1,21 +0,0 @@
# 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

5
deploy/example-webhook/Chart.yaml
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apiVersion: v1
appVersion: "1.0"
description: A Helm chart for Kubernetes
name: example-webhook
version: 0.1.0

0
deploy/example-webhook/templates/NOTES.txt
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48
deploy/example-webhook/templates/_helpers.tpl
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{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "example-webhook.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 "example-webhook.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 "example-webhook.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- define "example-webhook.selfSignedIssuer" -}}
{{ printf "%s-selfsign" (include "example-webhook.fullname" .) }}
{{- end -}}
{{- define "example-webhook.rootCAIssuer" -}}
{{ printf "%s-ca" (include "example-webhook.fullname" .) }}
{{- end -}}
{{- define "example-webhook.rootCACertificate" -}}
{{ printf "%s-ca" (include "example-webhook.fullname" .) }}
{{- end -}}
{{- define "example-webhook.servingCertificate" -}}
{{ printf "%s-webhook-tls" (include "example-webhook.fullname" .) }}
{{- end -}}

19
deploy/example-webhook/templates/apiservice.yaml
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apiVersion: apiregistration.k8s.io/v1
kind: APIService
metadata:
name: v1alpha1.{{ .Values.groupName }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
annotations:
cert-manager.io/inject-ca-from: "{{ .Release.Namespace }}/{{ include "example-webhook.servingCertificate" . }}"
spec:
group: {{ .Values.groupName }}
groupPriorityMinimum: 1000
versionPriority: 15
service:
name: {{ include "example-webhook.fullname" . }}
namespace: {{ .Release.Namespace }}
version: v1alpha1

68
deploy/example-webhook/templates/deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "example-webhook.fullname" . }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app: {{ include "example-webhook.name" . }}
release: {{ .Release.Name }}
template:
metadata:
labels:
app: {{ include "example-webhook.name" . }}
release: {{ .Release.Name }}
spec:
serviceAccountName: {{ include "example-webhook.fullname" . }}
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
args:
- --tls-cert-file=/tls/tls.crt
- --tls-private-key-file=/tls/tls.key
env:
- name: GROUP_NAME
value: {{ .Values.groupName | quote }}
ports:
- name: https
containerPort: 443
protocol: TCP
livenessProbe:
httpGet:
scheme: HTTPS
path: /healthz
port: https
readinessProbe:
httpGet:
scheme: HTTPS
path: /healthz
port: https
volumeMounts:
- name: certs
mountPath: /tls
readOnly: true
resources:
{{ toYaml .Values.resources | indent 12 }}
volumes:
- name: certs
secret:
secretName: {{ include "example-webhook.servingCertificate" . }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{ toYaml . | indent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{ toYaml . | indent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{ toYaml . | indent 8 }}
{{- end }}

76
deploy/example-webhook/templates/pki.yaml
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---
# Create a selfsigned Issuer, in order to create a root CA certificate for
# signing webhook serving certificates
apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
name: {{ include "example-webhook.selfSignedIssuer" . }}
namespace: {{ .Release.Namespace | quote }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
selfSigned: {}
---
# Generate a CA Certificate used to sign certificates for the webhook
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: {{ include "example-webhook.rootCACertificate" . }}
namespace: {{ .Release.Namespace | quote }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
secretName: {{ include "example-webhook.rootCACertificate" . }}
duration: 43800h # 5y
issuerRef:
name: {{ include "example-webhook.selfSignedIssuer" . }}
commonName: "ca.example-webhook.cert-manager"
isCA: true
---
# Create an Issuer that uses the above generated CA certificate to issue certs
apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
name: {{ include "example-webhook.rootCAIssuer" . }}
namespace: {{ .Release.Namespace | quote }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
ca:
secretName: {{ include "example-webhook.rootCACertificate" . }}
---
# Finally, generate a serving certificate for the webhook to use
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: {{ include "example-webhook.servingCertificate" . }}
namespace: {{ .Release.Namespace | quote }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
secretName: {{ include "example-webhook.servingCertificate" . }}
duration: 8760h # 1y
issuerRef:
name: {{ include "example-webhook.rootCAIssuer" . }}
dnsNames:
- {{ include "example-webhook.fullname" . }}
- {{ include "example-webhook.fullname" . }}.{{ .Release.Namespace }}
- {{ include "example-webhook.fullname" . }}.{{ .Release.Namespace }}.svc

90
deploy/example-webhook/templates/rbac.yaml
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apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "example-webhook.fullname" . }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
---
# Grant the webhook permission to read the ConfigMap containing the Kubernetes
# apiserver's requestheader-ca-certificate.
# This ConfigMap is automatically created by the Kubernetes apiserver.
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: {{ include "example-webhook.fullname" . }}:webhook-authentication-reader
namespace: kube-system
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: extension-apiserver-authentication-reader
subjects:
- apiGroup: ""
kind: ServiceAccount
name: {{ include "example-webhook.fullname" . }}
namespace: {{ .Release.Namespace }}
---
# apiserver gets the auth-delegator role to delegate auth decisions to
# the core apiserver
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "example-webhook.fullname" . }}:auth-delegator
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:auth-delegator
subjects:
- apiGroup: ""
kind: ServiceAccount
name: {{ include "example-webhook.fullname" . }}
namespace: {{ .Release.Namespace }}
---
# Grant cert-manager permission to validate using our apiserver
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: {{ include "example-webhook.fullname" . }}:domain-solver
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
rules:
- apiGroups:
- {{ .Values.groupName }}
resources:
- '*'
verbs:
- 'create'
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "example-webhook.fullname" . }}:domain-solver
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: {{ include "example-webhook.fullname" . }}:domain-solver
subjects:
- apiGroup: ""
kind: ServiceAccount
name: {{ .Values.certManager.serviceAccountName }}
namespace: {{ .Values.certManager.namespace }}

19
deploy/example-webhook/templates/service.yaml
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apiVersion: v1
kind: Service
metadata:
name: {{ include "example-webhook.fullname" . }}
labels:
app: {{ include "example-webhook.name" . }}
chart: {{ include "example-webhook.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
type: {{ .Values.service.type }}
ports:
- port: {{ .Values.service.port }}
targetPort: https
protocol: TCP
name: https
selector:
app: {{ include "example-webhook.name" . }}
release: {{ .Release.Name }}

43
deploy/example-webhook/values.yaml
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# The GroupName here is used to identify your company or business unit that
# created this webhook.
# For example, this may be "acme.mycompany.com".
# This name will need to be referenced in each Issuer's `webhook` stanza to
# inform cert-manager of where to send ChallengePayload resources in order to
# solve the DNS01 challenge.
# This group name should be **unique**, hence using your own company's domain
# here is recommended.
groupName: acme.mycompany.com
certManager:
namespace: cert-manager
serviceAccountName: cert-manager
image:
repository: mycompany/webhook-image
tag: latest
pullPolicy: IfNotPresent
nameOverride: ""
fullnameOverride: ""
service:
type: ClusterIP
port: 443
resources: {}
# We usually recommend not to specify default resources and to leave this as a conscious
# choice for the user. This also increases chances charts run on environments with little
# resources, such as Minikube. If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
nodeSelector: {}
tolerations: []
affinity: {}