chore: copy example-webhook's helm chart

Bring over the example-webook's helm chart with a mechanical rename to
this project.

Signed-off-by: Doug Goldstein <[email protected]>

charts/cert-manager-webhook-rackspace/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+appVersion: "0.0.0"
+description: Rackspace Cloud DNS webhook for cert-manager support
+name: cert-manager-webhook-rackspace
+version: 0.1.0

charts/cert-manager-webhook-rackspace/templates/_helpers.tpl

@@ -0,0 +1,48 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "cert-manager-webhook-rackspace.selfSignedIssuer" -}}
+{{ printf "%s-selfsign" (include "cert-manager-webhook-rackspace.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-rackspace.rootCAIssuer" -}}
+{{ printf "%s-ca" (include "cert-manager-webhook-rackspace.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-rackspace.rootCACertificate" -}}
+{{ printf "%s-ca" (include "cert-manager-webhook-rackspace.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-rackspace.servingCertificate" -}}
+{{ printf "%s-webhook-tls" (include "cert-manager-webhook-rackspace.fullname" .) }}
+{{- end -}}

charts/cert-manager-webhook-rackspace/templates/apiservice.yaml

@@ -0,0 +1,19 @@
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  name: v1alpha1.{{ .Values.groupName }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+  annotations:
+    cert-manager.io/inject-ca-from: "{{ .Release.Namespace }}/{{ include "cert-manager-webhook-rackspace.servingCertificate" . }}"
+spec:
+  group: {{ .Values.groupName }}
+  groupPriorityMinimum: 1000
+  versionPriority: 15
+  service:
+    name: {{ include "cert-manager-webhook-rackspace.fullname" . }}
+    namespace: {{ .Release.Namespace }}
+  version: v1alpha1

charts/cert-manager-webhook-rackspace/templates/deployment.yaml

@@ -0,0 +1,69 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "cert-manager-webhook-rackspace.fullname" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ include "cert-manager-webhook-rackspace.name" . }}
+      release: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app: {{ include "cert-manager-webhook-rackspace.name" . }}
+        release: {{ .Release.Name }}
+    spec:
+      serviceAccountName: {{ include "cert-manager-webhook-rackspace.fullname" . }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ default .Chart.AppVersion .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 "cert-manager-webhook-rackspace.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 }}

charts/cert-manager-webhook-rackspace/templates/pki.yaml

@@ -0,0 +1,76 @@
+---
+# 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 "cert-manager-webhook-rackspace.selfSignedIssuer" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.rootCACertificate" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  secretName: {{ include "cert-manager-webhook-rackspace.rootCACertificate" . }}
+  duration: 43800h # 5y
+  issuerRef:
+    name: {{ include "cert-manager-webhook-rackspace.selfSignedIssuer" . }}
+  commonName: "ca.cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.rootCAIssuer" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  ca:
+    secretName: {{ include "cert-manager-webhook-rackspace.rootCACertificate" . }}
+
+---
+
+# Finally, generate a serving certificate for the webhook to use
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ include "cert-manager-webhook-rackspace.servingCertificate" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  secretName: {{ include "cert-manager-webhook-rackspace.servingCertificate" . }}
+  duration: 8760h # 1y
+  issuerRef:
+    name: {{ include "cert-manager-webhook-rackspace.rootCAIssuer" . }}
+  dnsNames:
+  - {{ include "cert-manager-webhook-rackspace.fullname" . }}
+  - {{ include "cert-manager-webhook-rackspace.fullname" . }}.{{ .Release.Namespace }}
+  - {{ include "cert-manager-webhook-rackspace.fullname" . }}.{{ .Release.Namespace }}.svc

charts/cert-manager-webhook-rackspace/templates/rbac.yaml

@@ -0,0 +1,91 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "cert-manager-webhook-rackspace.fullname" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.fullname" . }}:webhook-authentication-reader
+  namespace: kube-system
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.fullname" . }}:auth-delegator
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.fullname" . }}
+    namespace: {{ .Release.Namespace }}
+---
+# Grant cert-manager permission to validate using our apiserver
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "cert-manager-webhook-rackspace.fullname" . }}:domain-solver
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.fullname" . }}:domain-solver
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "cert-manager-webhook-rackspace.fullname" . }}:domain-solver
+subjects:
+  - apiGroup: ""
+    kind: ServiceAccount
+    name: {{ .Values.certManager.serviceAccountName }}
+    namespace: {{ .Values.certManager.namespace }}

charts/cert-manager-webhook-rackspace/templates/service.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "cert-manager-webhook-rackspace.fullname" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app: {{ include "cert-manager-webhook-rackspace.name" . }}
+    chart: {{ include "cert-manager-webhook-rackspace.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 "cert-manager-webhook-rackspace.name" . }}
+    release: {{ .Release.Name }}

charts/cert-manager-webhook-rackspace/values.yaml

@@ -0,0 +1,42 @@
+# 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: ghcr.io/rackerlabs/cert-manager-webhook-rackspace
+  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: {}