109 lines
3.0 KiB
Markdown
109 lines
3.0 KiB
Markdown
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> 本文作者：丁辉
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# K3s单机部署指定容器运行时Docker
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> K3s默认容器运行时为: Containerd, 本文教你如何使用 Docker 容器运行时
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[官方文档](https://docs.k3s.io/zh/advanced#%E4%BD%BF%E7%94%A8-docker-%E4%BD%9C%E4%B8%BA%E5%AE%B9%E5%99%A8%E8%BF%90%E8%A1%8C%E6%97%B6)
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## 部署Docker
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1. Docker安装
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```bash
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curl https://releases.rancher.com/install-docker/20.10.sh | sh
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```
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> 传递参数使用国内源
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>
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> ```bash
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> curl -fsSL https://releases.rancher.com/install-docker/20.10.sh | sh -s -- --mirror Aliyun
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> ```
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2. 启动 Docker
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```bash
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systemctl enable docker
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systemctl start docker
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```
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## 部署K3s
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> 使用 `--docker` 参数指定 K3s 要使用的运行时
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- 国外源
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```bash
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curl -sfL https://get.k3s.io | \
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K3S_KUBECONFIG_OUTPUT=~/.kube/config \
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K3S_KUBECONFIG_MODE=644 \
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K3S_NODE_NAME=k3s-master \
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sh -s - --docker
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```
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- 国内源
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```bash
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curl -sfL https://rancher-mirror.rancher.cn/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn \
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K3S_SYSTEM_DEFAULT_REGISTRY=registry.cn-hangzhou.aliyuncs.com \
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K3S_KUBECONFIG_OUTPUT=~/.kube/config \
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K3S_KUBECONFIG_MODE=644 \
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K3S_NODE_NAME=k3s-master \
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sh -s - --docker
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```
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**参数解释**
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| 参数 | 解释 |
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| :-------------------------: | :----------------------------------------------------------: |
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| INSTALL_K3S_MIRROR | 该参数用于指定 k3s 安装过程中下载软件包和镜像的镜像站点。 |
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| K3S_SYSTEM_DEFAULT_REGISTRY | 该参数用于指定 k3s 系统组件（如 kube-apiserver、kube-controller-manager 等）使用的默认镜像仓库地址。 |
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| K3S_KUBECONFIG_OUTPUT | 指定 K3s 安装完成后生成的 kubeconfig 文件的输出路径。在这个例子中，设置为 `~/.kube/config`，表示 kubeconfig 文件将保存在当前用户的主目录下的 `.kube` 目录中，文件名为 `config`。 |
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| K3S_KUBECONFIG_MODE | 指定生成的 kubeconfig 文件的权限模式。在这个例子中，设置为 `644`，表示生成的 kubeconfig 文件权限模式为 `-rw-r--r--`，即当前用户有读写权限，其他用户只有读权限。 |
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| K3S_NODE_NAME | 指定 K3s 安装节点的名称。在这个例子中，设置为 `k3s-master`，表示安装的节点将被命名为 `k3s-master`。 |
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## 卸载
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1. 停止 K3s
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```bash
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k3s-killall.sh
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```
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2. 卸载 K3s
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```bash
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k3s-uninstall.sh
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```
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3. 停止 Docker
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```bash
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systemctl stop docker
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```
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4. 卸载 Docker
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- Centos
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```bash
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yum remove docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras -y
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```
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- Ubuntu
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```bash
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sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras
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```
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5. 删除 Docker 数据残留
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```bash
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rm -rf /var/lib/docker
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rm -rf /var/lib/containerd
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```
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