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| mkdir -p $var_app/alidns-webhook
cd $var_app/alidns-webhook
#1. Install alidns-webhook
# Install alidns-webhook to cert-manager namespace.
# kubectl apply -f https://raw.githubusercontent.com/pragkent/alidns-webhook/master/deploy/bundle.yaml
cat <<EOF | tee bundle.yaml
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: alidns-webhook
namespace: cert-manager
labels:
app: alidns-webhook
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: alidns-webhook
namespace: cert-manager
labels:
app: alidns-webhook
rules:
- apiGroups:
- ''
resources:
- 'secrets'
verbs:
- 'get'
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: alidns-webhook:flowcontrol-solver
labels:
app: alidns-webhook
rules:
- apiGroups:
- "flowcontrol.apiserver.k8s.io"
resources:
- 'prioritylevelconfigurations'
- 'flowschemas'
verbs:
- 'list'
- 'watch'
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: alidns-webhook:flowcontrol-solver
labels:
app: alidns-webhook
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: alidns-webhook:flowcontrol-solver
subjects:
- apiGroup: ""
kind: ServiceAccount
name: alidns-webhook
namespace: cert-manager
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: alidns-webhook
namespace: cert-manager
labels:
app: alidns-webhook
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: alidns-webhook
subjects:
- apiGroup: ""
kind: ServiceAccount
name: alidns-webhook
namespace: cert-manager
---
# 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: alidns-webhook:webhook-authentication-reader
namespace: kube-system
labels:
app: alidns-webhook
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: extension-apiserver-authentication-reader
subjects:
- apiGroup: ""
kind: ServiceAccount
name: alidns-webhook
namespace: cert-manager
---
# apiserver gets the auth-delegator role to delegate auth decisions to
# the core apiserver
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: alidns-webhook:auth-delegator
namespace: cert-manager
labels:
app: alidns-webhook
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:auth-delegator
subjects:
- apiGroup: ""
kind: ServiceAccount
name: alidns-webhook
namespace: cert-manager
---
# Grant cert-manager permission to validate using our apiserver
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: alidns-webhook:domain-solver
labels:
app: alidns-webhook
rules:
- apiGroups:
- acme.example.com
resources:
- '*'
verbs:
- 'create'
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: alidns-webhook:domain-solver
labels:
app: alidns-webhook
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: alidns-webhook:domain-solver
subjects:
- apiGroup: ""
kind: ServiceAccount
name: cert-manager
namespace: cert-manager
---
# Source: alidns-webhook/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
name: alidns-webhook
namespace: cert-manager
labels:
app: alidns-webhook
spec:
type: ClusterIP
ports:
- port: 443
targetPort: https
protocol: TCP
name: https
selector:
app: alidns-webhook
---
# Source: alidns-webhook/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: alidns-webhook
namespace: cert-manager
labels:
app: alidns-webhook
spec:
replicas:
selector:
matchLabels:
app: alidns-webhook
template:
metadata:
labels:
app: alidns-webhook
spec:
serviceAccountName: alidns-webhook
containers:
- name: alidns-webhook
image: pragkent/alidns-webhook:0.1.1
imagePullPolicy: IfNotPresent
args:
- --tls-cert-file=/tls/tls.crt
- --tls-private-key-file=/tls/tls.key
env:
- name: GROUP_NAME
value: "acme.example.com"
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:
{}
volumes:
- name: certs
secret:
secretName: alidns-webhook-webhook-tls
---
apiVersion: apiregistration.k8s.io/v1
kind: APIService
metadata:
name: v1alpha1.acme.example.com
labels:
app: alidns-webhook
annotations:
cert-manager.io/inject-ca-from: "cert-manager/alidns-webhook-webhook-tls"
spec:
group: acme.example.com
groupPriorityMinimum: 1000
versionPriority: 15
service:
name: alidns-webhook
namespace: cert-manager
version: v1alpha1
---
# 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: alidns-webhook-selfsign
namespace: cert-manager
labels:
app: alidns-webhook
spec:
selfSigned: {}
---
# Generate a CA Certificate used to sign certificates for the webhook
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: alidns-webhook-ca
namespace: cert-manager
labels:
app: alidns-webhook
spec:
secretName: alidns-webhook-ca
duration: 43800h # 5y
issuerRef:
name: alidns-webhook-selfsign
commonName: "ca.alidns-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: alidns-webhook-ca
namespace: cert-manager
labels:
app: alidns-webhook
spec:
ca:
secretName: alidns-webhook-ca
---
# Finally, generate a serving certificate for the webhook to use
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: alidns-webhook-webhook-tls
namespace: cert-manager
labels:
app: alidns-webhook
spec:
secretName: alidns-webhook-webhook-tls
duration: 8760h # 1y
issuerRef:
name: alidns-webhook-ca
dnsNames:
- alidns-webhook
- alidns-webhook.cert-manager
- alidns-webhook.cert-manager.svc
- alidns-webhook.cert-manager.svc.cluster.local
EOF
kubectl apply -f bundle.yaml
# 2. Create secret contains alidns credentials
cat <<EOF | tee alidns-secret.yaml
apiVersion: v1
kind: Secret
metadata:
name: alidns-secret
namespace: cert-manager
data:
access-key: TFRBSTV0Nk55MmFhdHZwc0d3dzlwUm5K
secret-key: WkJKbUtmaWJMaERGcmlHOUw1cktCcm1jZGtRdmhI
EOF
kubectl apply -f alidns-secret.yaml
# 3. Example Issuer
cat <<EOF | tee cluster-issuer.yaml
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: letsencrypt-prod
spec:
acme:
# Change to your letsencrypt email
email: test@example.com
server: https://acme-v02.api.letsencrypt.org/directory
privateKeySecretRef:
name: letsencrypt-prod-account-key
solvers:
- dns01:
webhook:
groupName: acme.example.com
solverName: alidns
config:
region: ""
accessKeySecretRef:
name: alidns-secret
key: access-key
secretKeySecretRef:
name: alidns-secret
key: secret-key
EOF
kubectl apply -f cluster-issuer.yaml
# 4. Issue a certificate
cat <<EOF | tee certificate.yaml
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: example-com-tls
spec:
secretName: example-com-tls
commonName: example.com
dnsNames:
- example.com
- "*.example.com"
issuerRef:
name: letsencrypt-prod
kind: ClusterIssuer
EOF
kubectl apply -f certificate.yaml
|