快速创建 kubeadm 集群 （Ubuntu）

gistfile1.txt

# 适用于 Ubuntu、x86 和 arm版本

export POD_CIDR="192.168.0.0/16"
export K8S_GCR_REPO=k8s-gcr.m.daocloud.io


# 配置内核
cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
br_netfilter
EOF
modprobe br_netfilter

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


# 安装 Containerd

apt-get install -y containerd
systemctl daemon-reload
systemctl enable --now containerd

cd /tmp
wget "http://ghproxy.com/https://github.com/containerd/nerdctl/releases/download/v0.21.0/nerdctl-0.21.0-linux-amd64.tar.gz"
tar -zxvf nerdctl-0.21.0-linux-amd64.tar.gz
mv nerdctl /usr/local/bin/


# 安装 kubelet kubeadm kubectl

apt-get update && apt-get install -y apt-transport-https
curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add - 
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
EOF
apt-get update
apt-get install -y kubelet kubeadm kubectl

# 安装 kubeadm init

kubeadm config images pull --image-repository "${K8S_GCR_REPO}"
kubeadm init --pod-network-cidr=$POD_CIDR --image-repository "${K8S_GCR_REPO}"

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


# 安装 Calico TODO

kubectl create -f https://docs.projectcalico.org/manifests/tigera-operator.yaml
kubectl create -f https://docs.projectcalico.org/manifests/custom-resources.yaml
watch kubectl get pods -n calico-system