karmada/operator/pkg/controlplane/apiserver/manifests.go

/*
Copyright 2023 The Karmada Authors.

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.
*/

package apiserver

const (
	// KarmadaApiserverDeployment is karmada apiserver deployment manifest
	KarmadaApiserverDeployment = `
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app.kubernetes.io/managed-by: karmada-operator
    app.kubernetes.io/name: karmada-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  name: {{ .DeploymentName }}
  namespace: {{ .Namespace }}
spec:
  replicas: {{ .Replicas }}
  selector:
    matchLabels:
      app.kubernetes.io/name: karmada-apiserver
      app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  template:
    metadata:
      labels:
        app.kubernetes.io/name: karmada-apiserver
        app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
    spec:
      automountServiceAccountToken: false
      containers:
      - name: kube-apiserver
        image: {{ .Image }}
        imagePullPolicy: {{ .ImagePullPolicy }}
        command:
        - kube-apiserver
        - --allow-privileged=true
        - --authorization-mode=Node,RBAC
        - --client-ca-file=/etc/karmada/pki/ca.crt
        - --disable-admission-plugins=StorageObjectInUseProtection,ServiceAccount
        - --enable-admission-plugins=NodeRestriction
        - --enable-bootstrap-token-auth=true
        - --bind-address=0.0.0.0
        - --secure-port=5443
        - --service-account-issuer=https://kubernetes.default.svc.cluster.local
        - --service-account-key-file=/etc/karmada/pki/karmada.key
        - --service-account-signing-key-file=/etc/karmada/pki/karmada.key
        - --service-cluster-ip-range={{ .ServiceSubnet }}
        - --proxy-client-cert-file=/etc/karmada/pki/front-proxy-client.crt
        - --proxy-client-key-file=/etc/karmada/pki/front-proxy-client.key
        - --requestheader-allowed-names=front-proxy-client
        - --requestheader-client-ca-file=/etc/karmada/pki/front-proxy-ca.crt
        - --requestheader-extra-headers-prefix=X-Remote-Extra-
        - --requestheader-group-headers=X-Remote-Group
        - --requestheader-username-headers=X-Remote-User
        - --tls-cert-file=/etc/karmada/pki/apiserver.crt
        - --tls-private-key-file=/etc/karmada/pki/apiserver.key
        - --tls-min-version=VersionTLS13
        - --max-requests-inflight=1500
        - --max-mutating-requests-inflight=500
        - --v=4
        livenessProbe:
          failureThreshold: 8
          httpGet:
            path: /livez
            port: 5443
            scheme: HTTPS
          initialDelaySeconds: 10
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 15
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /readyz
            port: 5443
            scheme: HTTPS
          initialDelaySeconds: 10
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 15
        affinity:
          podAntiAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                - key: app.kubernetes.io/name
                  operator: In
                  values:
                  - karmada-apiserver
                - key: app.kubernetes.io/instance
                  operator: In
                  values:
                  - {{ .KarmadaInstanceName }}
              topologyKey: kubernetes.io/hostname
        ports:
        - containerPort: 5443
          name: http
          protocol: TCP
        volumeMounts:
        - mountPath: /etc/karmada/pki
          name: apiserver-cert
          readOnly: true
      volumes:
      - name: apiserver-cert
        secret:
          secretName: {{ .KarmadaCertsSecret }}
`

	// KarmadaApiserverService is karmada apiserver service manifest
	KarmadaApiserverService = `
apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/managed-by: karmada-operator
    app.kubernetes.io/name: karmada-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  name: {{ .ServiceName }}
  namespace: {{ .Namespace }}
spec:
  ports:
  - name: client
    port: 5443
    protocol: TCP
    targetPort: 5443
  selector:
    app.kubernetes.io/name: karmada-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  type: {{ .ServiceType }}
`

	// KarmadaAggregatedAPIServerDeployment is karmada aggregated apiserver deployment manifest
	KarmadaAggregatedAPIServerDeployment = `
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app.kubernetes.io/managed-by: karmada-operator
    app.kubernetes.io/name: karmada-aggregated-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  name: {{ .DeploymentName }}
  namespace: {{ .Namespace }}
spec:
  replicas: {{ .Replicas }}
  selector:
    matchLabels:
      app.kubernetes.io/name: karmada-aggregated-apiserver
      app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  template:
    metadata:
      labels:
        app.kubernetes.io/name: karmada-aggregated-apiserver
        app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
    spec:
      automountServiceAccountToken: false
      containers:
      - name: karmada-aggregated-apiserver
        image: {{ .Image }}
        imagePullPolicy: {{ .ImagePullPolicy }}
        command:
        - /bin/karmada-aggregated-apiserver
        - --kubeconfig=/etc/karmada/config/karmada.config
        - --authentication-kubeconfig=/etc/karmada/config/karmada.config
        - --authorization-kubeconfig=/etc/karmada/config/karmada.config
        - --tls-cert-file=/etc/karmada/pki/karmada.crt
        - --tls-private-key-file=/etc/karmada/pki/karmada.key
        - --tls-min-version=VersionTLS13
        - --audit-log-path=-
        - --audit-log-maxage=0
        - --audit-log-maxbackup=0
        volumeMounts:
        - name: karmada-config
          mountPath: /etc/karmada/config
        - mountPath: /etc/karmada/pki
          name: apiserver-cert
          readOnly: true
      volumes:
      - name: karmada-config
        secret:
          secretName: {{ .KubeconfigSecret }}
      - name: apiserver-cert
        secret:
          secretName: {{ .KarmadaCertsSecret }}
`

	// KarmadaAggregatedAPIServerService is karmada aggregated APIServer Service manifest
	KarmadaAggregatedAPIServerService = `
apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/managed-by: karmada-operator
    app.kubernetes.io/name: karmada-aggregated-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  name: {{ .ServiceName }}
  namespace: {{ .Namespace }}
spec:
  ports:
  - port: 443
    protocol: TCP
    targetPort: 443
  selector:
    app.kubernetes.io/name: karmada-aggregated-apiserver
    app.kubernetes.io/instance: {{ .KarmadaInstanceName }}
  type: ClusterIP
`
)