Install Kubernetes Cluster With CRI-O: Part1 Install CRI-O

在三台主機做Kubernetes Cluster的情境下
(Version = 1.18.3)
192.168.53.204  k8s-master  ---CentOS 7.8
192.168.53.205  k8s-node1   ---CentOS 7.8
192.168.53.206  k8s-node2   ---CentOS 7.8

#先從k8s-master 安裝CRI-O

1.開啟模組

modprobe overlay
modprobe br_netfilter

2.新增sysctl配置

cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF

sysctl --system

3.加入CRI-O Repo (1.18.3) & 安裝 CRI-O

curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_7/devel:kubic:libcontainers:stable.repo

curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable:cri-o:1.18:1.18.3.repo https://download.opensuse.org/repositories/devel:kubic:libcontainers:stable:cri-o:1.18:1.18.3/CentOS_7/devel:kubic:libcontainers:stable:cri-o:1.18:1.18.3.repo

yum install cri-o

4. 開啟服務

systemctl enable crio
systemctl start crio

參考文件:
https://kubernetes.io/docs/setup/production-environment/container-runtimes/