kubeadm 修改runtime为containerd
1、配置containerd#安装containerdyum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repoyum -y install containerd#生成默认配置containerd config default > /etc/containerd/config.to
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1、配置containerd
#安装containerd
yum -y install yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum -y install containerd
#生成默认配置
containerd config default > /etc/containerd/config.toml
#替换默认pause镜像
sed -i 's/k8s.gcr.io\/pause:3.2/registry.baidubce.com\/k8s.gcr.io\/pause:3.2/g' /etc/containerd/config.toml
#修改默认Cgroup驱动
sed -i 's/SystemdCgroup = false/SystemdCgroup = true/g' /etc/containerd/config.toml
#启动containerd
systemctl enable containerd.service
systemctl restart containerd.service
2、修改kubelet相关启动参数
cp /etc/sysconfig/kubelet /etc/sysconfig/kubelet.backup
echo "KUBELET_EXTRA_ARGS=--container-runtime=remote --container-runtime-endpoint=unix:///run/containerd/containerd.sock --cgroup-driver=systemd" >/etc/sysconfig/kubelet
systemctl restart kubelet
3、关闭docker服务删除所有容器(按需关闭)
docker ps -a|tail -n +2|xargs docker stop
docker ps -a|tail -n +2|xargs docker rm
systemctl stop docker.socket
systemctl disable docker.socket
4、配置containerd 连接socket
cat >/etc/crictl.yaml<<EOF
runtime-endpoint: unix:///run/containerd/containerd.sock
image-endpoint: unix:///run/containerd/containerd.sock
timeout: 10
debug: false
EOF
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