1、yum安装
1.1、获取阿里云YUM源

wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

1.2、查看YUM源中Containerd软件

yum list | grep containerd
containerd.io.aarch64                                                                    1.6.28-3.2.el9                                 @docker-ce-stable  

1.3、使用yum命令安装

yum -y install containerd.io

1.4、验证安装及启动服务

rpm -qa | grep containerd
containerd.io-1.6.28-3.2.el9.aarch64

1.5、启动containerd服务及开机自启动

systemctl start containerd
systemctl enable containerd

1.6、查看containerd服务状态

systemctl status containerd

1.7、验证服务是否安装正常

ctr version
Client:Version:  1.6.28Revision: ae07eda36dd25f8a1b98dfbf587313b99c0190bbGo version: go1.21.8Server:Version:  1.6.28Revision: ae07eda36dd25f8a1b98dfbf587313b99c0190bbUUID: c29fa413-0060-4fe3-a127-fb43ffac94c8

2、查看containerd系统启动文件

cat /usr/lib/systemd/system/containerd.service
# Copyright The containerd Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd  # 系统启动命令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

3、安装runc
3.1、下载runc

wget https://github.com/opencontainers/runc/releases/download/v1.1.0/runc.amd64 #amd版本
wget https://github.com/opencontainers/runc/releases/download/v1.1.12/runc.arm64 # arm版本

3.2、查看已下载的文件

[root@192 ~]# ls
runc.amd64

3.3、移动可执行文件到指定目录

mv runc.arm64 /usr/sbin/runc

3.4、为runC添加可执行权限

chmod +x /usr/sbin/runc

3.5、验证runc是否安装成功

runc -v
runc version 1.1.12
commit: v1.1.12-0-g51d5e946
spec: 1.0.2-dev
go: go1.20.13
libseccomp: 2.5.4

4、拉取镜像

ctr images pull docker.io/library/nginx:latest

5、查看镜像列表

ctr image ls
REF                            TYPE                                    DIGEST                                                                  SIZE     PLATFORMS                                                                                                               LABELS 
docker.io/library/nginx:latest application/vnd.oci.image.index.v1+json sha256:6db391d1c0cfb30588ba0bf72ea999404f2764febf0f1f196acd5867ac7efa7e 64.1 MiB linux/386,linux/amd64,linux/arm/v5,linux/arm/v7,linux/arm64/v8,linux/mips64le,linux/ppc64le,linux/s390x,unknown/unknown - 

6、运行一个镜像

ctr run -d --net-host docker.io/library/nginx:latest nginx1
--net-host # 使用主机网络
nginx1 启动容器的名称

7、查看正在运行的镜像

ctr container ls
CONTAINER    IMAGE                             RUNTIME                  
nginx1       docker.io/library/nginx:latest    io.containerd.runc.v2  

8、查看已运行容器中运行的进程既tasks

ctr tasks ls
TASK      PID      STATUS    
nginx1    24731    RUNNING

9、进入容器

ctr task exec --exec-id 1 -t nginx1 /bin/bash

9.1、测试是否启动成功

echo "nginx2" > /usr/share/nginx/html/index.html
curl localhost
nginx2 # 显示此名称表示成功请求

10、查看containerd配置文件

cat /etc/containerd/config.toml 
#   Copyright 2018-2022 Docker Inc.#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at#       http://www.apache.org/licenses/LICENSE-2.0#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.disabled_plugins = ["cri"]#root = "/var/lib/containerd"
#state = "/run/containerd"
#subreaper = true
#oom_score = 0#[grpc]
#  address = "/run/containerd/containerd.sock"
#  uid = 0
#  gid = 0#[debug]
#  address = "/run/containerd/debug.sock"
#  uid = 0
#  gid = 0
#  level = "info"