#!/bin/bash

KUBE_APISERVER="https://172.31.173.44:6443"

kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig

kubectl config set-credentials kubelet-bootstrap \
  --kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig

kubectl config set-context default \
  --cluster=kubernetes \
  --user=kubelet-bootstrap \
  --kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig

kubectl config use-context default --kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig



kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig

kubectl config set-credentials kube-proxy \
  --client-certificate=/opt/kubernetes/ssl/kube-proxy.pem \
  --client-key=/opt/kubernetes/ssl/kube-proxy-key.pem \
  --embed-certs=true \
  --kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig

kubectl config set-context default \
  --cluster=kubernetes \
  --user=kube-proxy \
  --kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig

kubectl config use-context default --kubeconfig=opt/kubernetes/cfg/kube-proxy.kubeconfig


cat <<EOF > /opt/kubernetes/cfg/kubelet
KUBELET_OPTS="--logtostderr=true \
--v=4 \
--hostname-override=172.31.173.44 \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--cert-dir=/opt/kubernetes/ssl"
EOF

cat <<EOF > /opt/kubernetes/cfg/kubelet.config
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 172.31.173.44
port: 10250
readOnlyPort: 10255
cgroupDriver: cgroupfs
clusterDNS: ["10.0.0.2"]
clusterDomain: cluster.local.
failSwapOn: false
authentication:
  anonymous:
    enabled: true
EOF

cat >> /usr/lib/systemd/system/kubelet.service   << "EOF" 
[Unit]
Description=Kubernetes Kubelet
After=docker.service
Requires=docker.service

[Service]
EnvironmentFile=/opt/kubernetes/cfg/kubelet
ExecStart=/opt/kubernetes/bin/kubelet $KUBELET_OPTS
Restart=on-failure
KillMode=process

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable kubelet