provision-master

#!/bin/bash

echo "Configuring Operating system..."
cat <<EOI > /etc/yum.repos.d/virt7-docker-common-release.repo
[virt7-docker-common-release]
name=virt7-docker-common-release
baseurl=http://cbs.centos.org/repos/virt7-docker-common-release/x86_64/os/
gpgcheck=0
EOI

cat <<EOI >> /etc/hosts
192.168.121.110 master
192.168.121.111 node01
192.168.121.112 node02
192.168.121.113 node03
EOI

echo 'nameserver 8.8.8.8' > /etc/resolv.conf

  ## I've had issues when CentOS tries to use IPv6
sysctl -w net.ipv6.conf.all.disable_ipv6=1 >/dev/null
sysctl -w net.ipv6.conf.default.disable_ipv6=1 >/dev/null

setenforce 0
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
systemctl disable iptables-services firewalld >/dev/null 2>&1
systemctl stop iptables-services firewalld >/dev/null 2>&1

echo "Installing Kubernetes API server software (this may take a bit)..."
yum install -y --enablerepo=virt7-docker-common-release kubernetes etcd flannel >/tmp/software-install.log 2>&1

echo "Establishing API Server Configuration"
cat /vagrant/etcd.conf > /etc/etcd/etcd.conf
cat /vagrant/config > /etc/kubernetes/config 

cat <<EOI > /etc/kubernetes/apiserver
# The address on the local server to listen to.
KUBE_API_ADDRESS="--address=0.0.0.0"

# The port on the local server to listen on.
KUBE_API_PORT="--port=8080"

# Port kubelets listen on
KUBELET_PORT="--kubelet-port=10250"

# Comma separated list of nodes in the etcd cluster
KUBE_ETCD_SERVERS="--etcd-servers=http://master:2379"

# Address range to use for services
KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"

# Add your own!
KUBE_API_ARGS=""
EOI

echo ":: Bootstrapping etcd and flannel..."
systemctl start etcd 2>/dev/null
etcdctl mkdir /kube-centos/network
etcdctl mk /kube-centos/network/config "{ \"Network\": \"172.30.0.0/16\", \"SubnetLen\": 24, \"Backend\": { \"Type\": \"vxlan\" } }"

cat <<EOI > /etc/sysconfig/flanneld
# Flanneld configuration options

# etcd url location.  Point this to the server where etcd runs
FLANNEL_ETCD_ENDPOINTS="http://master:2379"

# etcd config key.  This is the configuration key that flannel queries
# For address range assignment
FLANNEL_ETCD_PREFIX="/kube-centos/network"

# Any additional options that you want to pass
#FLANNEL_OPTIONS=""
EOI

for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler flanneld; do
    systemctl restart $SERVICES 
    systemctl enable $SERVICES 2>/dev/null
done