deploy-kube-with-kubeadm

#!/bin/bash

#fedora atomic
rpm-ostree install kubernetes-node kubernetes-client kubernetes-kubeadm kernel-devel vim
#fedora
dnf install kubernetes-node kubernetes-client kubernetes-kubeadm kernel-devel vim
#centos
# for cc7 disable firewalld and restart the node
yum install -y http://cbs.centos.org/kojifiles/packages/centos-release-kubernetes110/1.0/1.el7.centos/x86_64/centos-release-kubernetes110-1.0-1.el7.centos.x86_64.rpm
yum install --disablerepo extras kubernetes-node kubernetes-client kubernetes-kubeadm kernel-devel vim

setenforce 0

cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system

# we need cgroupfs
vim /etc/systemd/system/kubelet.service.d/10-kubeadm.conf or /etc/systemd/system/kubelet.service.d/kubeadm.conf
--cgroup-driver=cgroupfs
vim /etc/kubernetes/kubelet
--cgroup-driver=cgroupfs
vim /usr/lib/systemd/system/docker.service
--exec-opt native.cgroupdriver=cgroupfs
systemctl daemon-reload

systemctl restart docker
systemctl enable kubelet --now
# verify that kubelet started and that is failing to find the apiserver at port 6443
journalctl -u kubelet -f


MASTER_IP=<IP>

kubeadm init --apiserver-advertise-address=${MASTER_IP} --pod-network-cidr=10.244.0.0/16

export KUBECONFIG=/etc/kubernetes/admin.conf

sysctl net.bridge.bridge-nf-call-iptables=1

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml


exit

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config