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[Unit]
Description=Kubernetes API Server
Documentation=https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/
After=network.target etcd.service cluster-detect.service
Wants=etcd.service

[Service]
Type=notify
EnvironmentFile=/etc/cluster-config/environment/kube-apiserver.env
ExecStartPre=/usr/local/bin/kube-apiserver-config-generator.sh
ExecStart=/usr/bin/kube-apiserver \
  --advertise-address=${NODE_IP} \
  --allow-privileged=true \
  --authorization-mode=Node,RBAC \
  --client-ca-file=/etc/kubernetes/pki/ca.crt \
  --enable-admission-plugins=NodeRestriction \
  --enable-bootstrap-token-auth=true \
  --etcd-servers=https://127.0.0.1:2379 \
  --etcd-cafile=/etc/kubernetes/pki/etcd/ca.crt \
  --etcd-certfile=/etc/kubernetes/pki/apiserver-etcd-client.crt \
  --etcd-keyfile=/etc/kubernetes/pki/apiserver-etcd-client.key \
  --kubelet-client-certificate=/etc/kubernetes/pki/apiserver-kubelet-client.crt \
  --kubelet-client-key=/etc/kubernetes/pki/apiserver-kubelet-client.key \
  --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname \
  --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.crt \
  --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client.key \
  --requestheader-allowed-names=front-proxy-client \
  --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt \
  --requestheader-extra-headers-prefix=X-Remote-Extra- \
  --requestheader-group-headers=X-Remote-Group \
  --requestheader-username-headers=X-Remote-User \
  --secure-port=6443 \
  --service-account-issuer=https://kubernetes.default.svc.cluster.local \
  --service-account-key-file=/etc/kubernetes/pki/sa.pub \
  --service-account-signing-key-file=/etc/kubernetes/pki/sa.key \
  --service-cluster-ip-range=${SERVICE_CIDR} \
  --tls-cert-file=/etc/kubernetes/pki/apiserver.crt \
  --tls-private-key-file=/etc/kubernetes/pki/apiserver.key

Restart=always
RestartSec=10

LimitNOFILE=65536

[Install]
WantedBy=kubernetes-master.target