#!/bin/bash
##
## Script to provide commands to run on all worker nodes
##

##############################
# Configuring the Kube Proxy #
##############################

mkdir -p /var/lib/kube-proxy
mv kube-proxy.kubeconfig /var/lib/kube-proxy/kubeconfig
cat > /etc/systemd/system/kube-proxy.service << 'EOM'
[Unit]
Description=Kubernetes Kube-Proxy Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=network.target

[Service]
EnvironmentFile=-/etc/kubernetes/config
EnvironmentFile=-/etc/kubernetes/proxy
ExecStart=/usr/local/bin/kube-proxy \
            $KUBE_LOGTOSTDERR \
            $KUBE_LOG_LEVEL \
            $KUBE_MASTER \
            $KUBE_PROXY_ARGS
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOM

echo 'KUBE_PROXY_ARGS="--config=/var/lib/kube-proxy/kube-proxy-config.yaml"' > /etc/kubernetes/proxy

cat > /var/lib/kube-proxy/kube-proxy-config.yaml << EOM
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
clientConnection:
  kubeconfig: "/var/lib/kube-proxy/kubeconfig"
mode: "iptables"
clusterCIDR: "10.200.0.0/16"
EOM

curl https://storage.googleapis.com/kubernetes-release/release/v1.10.3/bin/linux/amd64/kube-proxy -o /usr/local/bin/kube-proxy
chmod 755 /usr/local/bin/kube-proxy

systemctl daemon-reload
systemctl enable kube-proxy
systemctl start kube-proxy