kubespray创建windows server 2019 worker结点集群

傷城~ 2024-04-18 12:49 47阅读 0赞

默认情况下，参考：

[https://docs.microsoft.com/en-us/virtualization/windowscontainers/kubernetes/creating-a-linux-master][https_docs.microsoft.com_en-us_virtualization_windowscontainers_kubernetes_creating-a-linux-master]

基于上述方法，采用kubespray进行优化

1. 首先修改如下文件：

inventory/your_name/group_vars/k8s-cluster/k8s-cluster.yml

修改：kube\_network\_plugin: flannel

2. 检查如下文件：

roles/network_plugin/flannel/defaults/main.yml

确保：flannel\_backend\_type: "vxlan"

3. 执行如下命令，修改网络配置

vi roles/network_plugin/flannel/templates/cni-flannel.yml.j2

主要将"name":"cni0"修改为vxlan0：

cni-conf.json: |
        {
          "name": "vxlan0",
          "plugins": [
            {
              "type": "flannel",
              "delegate": {
                "hairpinMode": true,
                "isDefaultGateway": true
              }
            },
            {
              "type": "portmap",
              "capabilities": {
                "portMappings": true
              }
            }
          ]
        }

修改net-conf.json，加入"VNI" : 4096,   "Port": 4789:

net-conf.json: |
        {
          "Network": "{
       { kube_pods_subnet }}",
          "Backend": {
            "Type": "{
       { flannel_backend_type }}",
            "VNI" : 4096,
            "Port": 4789
          }
        }

修改完成后，执行:wq退出

4. 其他步骤参考[https://my.oschina.net/eacdy/blog/1944832][https_my.oschina.net_eacdy_blog_1944832]，最后执行命令创建kubernetes网络

ansible-playbook -i inventory/your_name/hosts.ini cluster.yml -vv

5. 加入windows server 2019结点

参考：

https://docs.microsoft.com/en-us/virtualization/windowscontainers/kubernetes/joining-windows-workers?tabs=ManagementIP

其中，通过执行命令，获得集群的参数

kubectl cluster-info dump > /tmp/k8s.info

检索：--cluster-cidr   即为<Cluster CIDR>

--service-cluster-ip-range   即为<Service CIDR>

"ports": [
                        {
                            "name": "dns",
                            "protocol": "UDP",
                            "port": 53,
                            "targetPort": 53
                        },
                        {
                            "name": "dns-tcp",
                            "protocol": "TCP",
                            "port": 53,
                            "targetPort": 53
                        },
                        {
                            "name": "metrics",
                            "protocol": "TCP",
                            "port": 9153,
                            "targetPort": 9153
                        }
                    ],
                    "selector": {
                        "k8s-app": "kube-dns"
                    },
                    "clusterIP": "10.96.0.10",
                    "type": "ClusterIP",
                    "sessionAffinity": "None"
                },

其中，kube-dns对应的clusterIP 即为<Kube-dns Service IP>

最后，执行如下命令，其中<network mode>为overlay

.\start.ps1 -ManagementIP <Windows Node IP> -NetworkMode <network mode>  -ClusterCIDR <Cluster CIDR> -ServiceCIDR <Service CIDR> -KubeDnsServiceIP <Kube-dns Service IP> -LogDir <Log directory>

[https_docs.microsoft.com_en-us_virtualization_windowscontainers_kubernetes_creating-a-linux-master]: https://docs.microsoft.com/en-us/virtualization/windowscontainers/kubernetes/creating-a-linux-master
[https_my.oschina.net_eacdy_blog_1944832]: https://my.oschina.net/eacdy/blog/1944832