树莓派搭建k3s

2021-12-06 约 383 字预计阅读 1 分钟次阅读

树莓派安装 k3s

1.安装 k3s

控制节点

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    curl -sfL https://get.k3s.io | sh -
    cat /var/lib/rancher/k3s/server/node-token

工作节点

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    curl -sfL https://get.k3s.io | K3S_URL=https://myserver:6443 K3S_TOKEN=mynodetoken sh -

树莓派特别要注意一个坑，就是关于内存的问题这个之后再讲

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    k3s kubectl get nodes
    #显示正确的节点表示完成

卸载 k3s

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    #server 节点
    /usr/local/bin/k3s-uninstall.sh
    #agent 节点
    /usr/local/bin/k3s-agent-uninstall.sh

2.安装 dashboard k3s 面板

部署 Kubernetes 仪表盘

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    GITHUB_URL=https://github.com/kubernetes/dashboard/releases
    VERSION_KUBE_DASHBOARD=$(curl -w '%{url_effective}' -I -L -s -S ${GITHUB_URL}/latest -o /dev/null | sed -e 's|.*/||')
    sudo k3s kubectl create -f https://raw.githubusercontent.com/kubernetes/dashboard/${VERSION_KUBE_DASHBOARD}/aio/deploy/recommended.yaml

仪表盘 RBAC 配置

创建以下资源清单文件：

dashboard.admin-user.yml

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apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard

dashboard.admin-user-role.yml

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apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
  - kind: ServiceAccount
    name: admin-user
    namespace: kubernetes-dashboard

部署 admin-user 配置：

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    sudo k3s kubectl create -f dashboard.admin-user.yml -f dashboard.admin-user-role.yml

获得 Bearer Token

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    sudo k3s kubectl -n kubernetes-dashboard describe secret admin-user-token | grep '^token'

现在可以通过以下网址访问仪表盘：

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    sudo k3s kubectl proxy

http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

连接 lens

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    cat /etc/rancher/k3s/k3s.yaml
    更改本地host
    穿透服务器IP    local

3.安装 kube—prometheus 监控

一键安装

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    wget https://github.com/prometheus-operator/kube-prometheus/archive/refs/tags/v0.9.0.tar.gz
    tar -zxvf v0.9.0.tar.gz
    cd kube-prometheus-0.9.0/manifests
    k3s kubectl apply -f setup/
    k3s kubectl get pod -n monitoring
    k3s kubectl apply -f .

一键卸载

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    cd kube-prometheus/manifests
    k3s kubectl delete -f .
    k3s kubectl delete -f setup/

目录