487. 【kubernetes】二进制方式安装-containerd

kubernetes 1.20 版本宣布弃用docker，kubernetes 1.24 版本正式移除docker，本着开发人员对于新技术的探索精神（作死精神），这篇开始基于 kubernetes 1.25 版本搭建集群。想要搭建包含docker版本的kubernetes集群的同学，可以移步文章末尾，查看七镜之前写的相关文章。

一、github中的containerd下载地址

点击下载：containerd-1.6.9-linux-amd64.tar.gz

二、解压安装 containerd

[root@k8s_master k8s]#  tar -zxvf containerd-1.6.9-linux-amd64.tar.gz 
bin/
bin/ctr
bin/containerd
bin/containerd-shim
bin/containerd-stress
bin/containerd-shim-runc-v2
bin/containerd-shim-runc-v1
[root@k8s_master k8s]#  cp bin/* /usr/local/bin/

三、开机自动启动

编辑 service 文件

vim /usr/lib/systemd/system/containerd.service

文件内容如下：

[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
# uncomment to enable the experimental sbservice (sandboxed) version of containerd/cri integration
# Environment="ENABLE_CRI_SANDBOXES=sandboxed"
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd

Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
#  Having non-zero Limit*s causes performance problems due to accounting overhead
#  in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=infinity
#  Comment TasksMax if your systemd version does not supports it.
#  Only systemd 226 and above support this version.
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target

启动 containerd:

[root@k8s_master local]#  systemctl daemon-reload
[root@k8s_master local]#  systemctl enable --now containerd
[root@k8s_master local]#  s