2022-06-28 19:59:50 +08:00
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# 03-安装容器运行时
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项目根据k8s版本提供不同的默认容器运行时：
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- k8s 版本 < 1.24 时，支持docker containerd 可选
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- k8s 版本 >= 1.24 时，仅支持 containerd
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## 安装containerd
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作为 CNCF 毕业项目，containerd 致力于提供简洁、可靠、可扩展的容器运行时；它被设计用来集成到 kubernetes 等系统使用，而不是像 docker 那样独立使用。
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- 安装指南 https://github.com/containerd/cri/blob/master/docs/installation.md
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- 客户端 circtl 使用指南 https://github.com/containerd/cri/blob/master/docs/crictl.md
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- man 文档 https://github.com/containerd/containerd/tree/master/docs/man
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## kubeasz 集成安装 containerd
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- 注意：k8s 1.24以后，项目已经设置默认容器运行时为 containerd，无需手动修改
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- 执行安装：分步安装`ezctl setup xxxx 03`，一键安装`ezctl setup xxxx all`
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## 命令对比
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|命令 |docker |crictl（推荐） |ctr |
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|:- |:- |:- |:- |
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|查看容器列表 |docker ps |crictl ps |ctr -n k8s.io c ls |
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|查看容器详情 |docker inspect |crictl inspect |ctr -n k8s.io c info |
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|查看容器日志 |docker logs |crictl logs |无 |
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|容器内执行命令 |docker exec |crictl exec |无 |
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|挂载容器 |docker attach |crictl attach |无 |
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|容器资源使用 |docker stats |crictl stats |无 |
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|创建容器 |docker create |crictl create |ctr -n k8s.io c create |
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|启动容器 |docker start |crictl start |ctr -n k8s.io run |
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|停止容器 |docker stop |crictl stop |无 |
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|删除容器 |docker rm |crictl rm |ctr -n k8s.io c del |
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|查看镜像列表 |docker images |crictl images |ctr -n k8s.io i ls |
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|查看镜像详情 |docker inspect |crictl inspecti|无 |
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|拉取镜像 |docker pull |crictl pull |ctr -n k8s.io i pull |
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|推送镜像 |docker push |无 |ctr -n k8s.io i push |
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|删除镜像 |docker rmi |crictl rmi |ctr -n k8s.io i rm |
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|查看Pod列表 |无 |crictl pods |无 |
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|查看Pod详情 |无 |crictl inspectp|无 |
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|启动Pod |无 |crictl runp |无 |
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|停止Pod |无 |crictl stopp |无 |
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2017-12-02 11:39:12 +08:00
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2017-12-18 17:35:51 +08:00
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2018-10-12 13:30:19 +08:00
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[后一篇](04-install_kube_master.md)
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