4 月 022021
1 Control Plane + etcd
3 Worker
创建配置文件
[root@localhost ~]# rke config --name cluster.yml [+] Cluster Level SSH Private Key Path [~/.ssh/id_rsa]: [+] Number of Hosts [1]: 4 [+] SSH Address of host (1) [none]: 192.168.3.201 [+] SSH Port of host (1) [22]: [+] SSH Private Key Path of host (192.168.3.201) [none]: ~/.ssh/id_rsa [+] SSH User of host (192.168.3.201) [ubuntu]: deployer [+] Is host (192.168.3.201) a Control Plane host (y/n)? [y]: y [+] Is host (192.168.3.201) a Worker host (y/n)? [n]: n [+] Is host (192.168.3.201) an etcd host (y/n)? [n]: y [+] Override Hostname of host (192.168.3.201) [none]: k8s-cluster01-01 [+] Internal IP of host (192.168.3.201) [none]: [+] Docker socket path on host (192.168.3.201) [/var/run/docker.sock]: [+] SSH Address of host (2) [none]: 192.168.3.202 [+] SSH Port of host (2) [22]: [+] SSH Private Key Path of host (192.168.3.202) [none]: ~/.ssh/id_rsa [+] SSH User of host (192.168.3.202) [ubuntu]: deployer [+] Is host (192.168.3.202) a Control Plane host (y/n)? [y]: n [+] Is host (192.168.3.202) a Worker host (y/n)? [n]: y [+] Is host (192.168.3.202) an etcd host (y/n)? [n]: n [+] Override Hostname of host (192.168.3.202) [none]: k8s-cluster01-02 [+] Internal IP of host (192.168.3.202) [none]: [+] Docker socket path on host (192.168.3.202) [/var/run/docker.sock]: [+] SSH Address of host (3) [none]: 192.168.3.203 [+] SSH Port of host (3) [22]: [+] SSH Private Key Path of host (192.168.3.203) [none]: ~/.ssh/id_rsa [+] SSH User of host (192.168.3.203) [ubuntu]: deployer [+] Is host (192.168.3.203) a Control Plane host (y/n)? [y]: n [+] Is host (192.168.3.203) a Worker host (y/n)? [n]: y [+] Is host (192.168.3.203) an etcd host (y/n)? [n]: n [+] Override Hostname of host (192.168.3.203) [none]: k8s-cluster01-03 [+] Internal IP of host (192.168.3.203) [none]: [+] Docker socket path on host (192.168.3.203) [/var/run/docker.sock]: [+] SSH Address of host (4) [none]: 192.168.3.204 [+] SSH Port of host (4) [22]: [+] SSH Private Key Path of host (192.168.3.204) [none]: ~/.ssh/id_rsa [+] SSH User of host (192.168.3.204) [ubuntu]: deployer [+] Is host (192.168.3.204) a Control Plane host (y/n)? [y]: n [+] Is host (192.168.3.204) a Worker host (y/n)? [n]: y [+] Is host (192.168.3.204) an etcd host (y/n)? [n]: n [+] Override Hostname of host (192.168.3.204) [none]: k8s-cluster01-04 [+] Internal IP of host (192.168.3.204) [none]: [+] Docker socket path on host (192.168.3.204) [/var/run/docker.sock]: [+] Network Plugin Type (flannel, calico, weave, canal, aci) [canal]: flannel [+] Authentication Strategy [x509]: [+] Authorization Mode (rbac, none) [rbac]: [+] Kubernetes Docker image [rancher/hyperkube:v1.20.5-rancher1]: rancher/hyperkube:v1.19.9-rancher1 [+] Cluster domain [cluster.local]: [+] Service Cluster IP Range [10.43.0.0/16]: [+] Enable PodSecurityPolicy [n]: [+] Cluster Network CIDR [10.42.0.0/16]: [+] Cluster DNS Service IP [10.43.0.10]: [+] Add addon manifest URLs or YAML files [no]: [root@localhost ~]#
Rancher Kubernetes Docker image版本可选参数
https://github.com/rancher/rke/releases New Images in v1.20.5-rancher1-1, v1.19.9-rancher1-1 and v1.18.16-rancher1-1 Updated Hyperkube Image based on k8s versions rancher/hyperkube:v1.20.5-rancher1 rancher/hyperkube:v1.19.9-rancher1 rancher/hyperkube:v1.18.17-rancher1
配置文件
[root@localhost ~]# cat cluster.yml # If you intened to deploy Kubernetes in an air-gapped environment, # please consult the documentation on how to configure custom RKE images. nodes: - address: 192.168.3.201 port: "22" internal_address: "" role: - controlplane - etcd hostname_override: k8s-cluster01-01 user: deployer docker_socket: /var/run/docker.sock ssh_key: "" ssh_key_path: ~/.ssh/id_rsa ssh_cert: "" ssh_cert_path: "" labels: {} taints: [] - address: 192.168.3.202 port: "22" internal_address: "" role: - worker hostname_override: k8s-cluster01-02 user: deployer docker_socket: /var/run/docker.sock ssh_key: "" ssh_key_path: ~/.ssh/id_rsa ssh_cert: "" ssh_cert_path: "" labels: {} taints: [] - address: 192.168.3.203 port: "22" internal_address: "" role: - worker hostname_override: k8s-cluster01-03 user: deployer docker_socket: /var/run/docker.sock ssh_key: "" ssh_key_path: ~/.ssh/id_rsa ssh_cert: "" ssh_cert_path: "" labels: {} taints: [] - address: 192.168.3.204 port: "22" internal_address: "" role: - worker hostname_override: k8s-cluster01-04 user: deployer docker_socket: /var/run/docker.sock ssh_key: "" ssh_key_path: ~/.ssh/id_rsa ssh_cert: "" ssh_cert_path: "" labels: {} taints: [] services: etcd: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] external_urls: [] ca_cert: "" cert: "" key: "" path: "" uid: 0 gid: 0 snapshot: null retention: "" creation: "" backup_config: null kube-api: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] service_cluster_ip_range: 10.43.0.0/16 service_node_port_range: "" pod_security_policy: false always_pull_images: false secrets_encryption_config: null audit_log: null admission_configuration: null event_rate_limit: null kube-controller: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] cluster_cidr: 10.42.0.0/16 service_cluster_ip_range: 10.43.0.0/16 scheduler: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] kubelet: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] cluster_domain: cluster.local infra_container_image: "" cluster_dns_server: 10.43.0.10 fail_swap_on: false generate_serving_certificate: false kubeproxy: image: "" extra_args: {} extra_binds: [] extra_env: [] win_extra_args: {} win_extra_binds: [] win_extra_env: [] network: plugin: flannel options: {} mtu: 0 node_selector: {} update_strategy: null tolerations: [] authentication: strategy: x509 sans: [] webhook: null addons: "" addons_include: [] system_images: etcd: rancher/coreos-etcd:v3.4.14-rancher1 alpine: rancher/rke-tools:v0.1.72 nginx_proxy: rancher/rke-tools:v0.1.72 cert_downloader: rancher/rke-tools:v0.1.72 kubernetes_services_sidecar: rancher/rke-tools:v0.1.72 kubedns: rancher/k8s-dns-kube-dns:1.15.10 dnsmasq: rancher/k8s-dns-dnsmasq-nanny:1.15.10 kubedns_sidecar: rancher/k8s-dns-sidecar:1.15.10 kubedns_autoscaler: rancher/cluster-proportional-autoscaler:1.8.1 coredns: rancher/coredns-coredns:1.8.0 coredns_autoscaler: rancher/cluster-proportional-autoscaler:1.8.1 nodelocal: rancher/k8s-dns-node-cache:1.15.13 kubernetes: rancher/hyperkube:v1.19.9-rancher1 flannel: rancher/coreos-flannel:v0.13.0-rancher1 flannel_cni: rancher/flannel-cni:v0.3.0-rancher6 calico_node: rancher/calico-node:v3.17.2 calico_cni: rancher/calico-cni:v3.17.2 calico_controllers: rancher/calico-kube-controllers:v3.17.2 calico_ctl: rancher/calico-ctl:v3.17.2 calico_flexvol: rancher/calico-pod2daemon-flexvol:v3.17.2 canal_node: rancher/calico-node:v3.17.2 canal_cni: rancher/calico-cni:v3.17.2 canal_controllers: rancher/calico-kube-controllers:v3.17.2 canal_flannel: rancher/coreos-flannel:v0.13.0-rancher1 canal_flexvol: rancher/calico-pod2daemon-flexvol:v3.17.2 weave_node: weaveworks/weave-kube:2.8.1 weave_cni: weaveworks/weave-npc:2.8.1 pod_infra_container: rancher/pause:3.2 ingress: rancher/nginx-ingress-controller:nginx-0.43.0-rancher1 ingress_backend: rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1 metrics_server: rancher/metrics-server:v0.4.1 windows_pod_infra_container: rancher/kubelet-pause:v0.1.6 aci_cni_deploy_container: noiro/cnideploy:5.1.1.0.1ae238a aci_host_container: noiro/aci-containers-host:5.1.1.0.1ae238a aci_opflex_container: noiro/opflex:5.1.1.0.1ae238a aci_mcast_container: noiro/opflex:5.1.1.0.1ae238a aci_ovs_container: noiro/openvswitch:5.1.1.0.1ae238a aci_controller_container: noiro/aci-containers-controller:5.1.1.0.1ae238a aci_gbp_server_container: noiro/gbp-server:5.1.1.0.1ae238a aci_opflex_server_container: noiro/opflex-server:5.1.1.0.1ae238a ssh_key_path: ~/.ssh/id_rsa ssh_cert_path: "" ssh_agent_auth: false authorization: mode: rbac options: {} ignore_docker_version: null kubernetes_version: "" private_registries: [] ingress: provider: "" options: {} node_selector: {} extra_args: {} dns_policy: "" extra_envs: [] extra_volumes: [] extra_volume_mounts: [] update_strategy: null http_port: 0 https_port: 0 network_mode: "" tolerations: [] default_backend: null default_http_backend_priority_class_name: "" nginx_ingress_controller_priority_class_name: "" cluster_name: "" cloud_provider: name: "" prefix_path: "" win_prefix_path: "" addon_job_timeout: 0 bastion_host: address: "" port: "" user: "" ssh_key: "" ssh_key_path: "" ssh_cert: "" ssh_cert_path: "" monitoring: provider: "" options: {} node_selector: {} update_strategy: null replicas: null tolerations: [] metrics_server_priority_class_name: "" restore: restore: false snapshot_name: "" rotate_encryption_key: false dns: null [root@localhost ~]#
下载安装最新版本或指定版本(二进制Kubernetes组件)
https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/ https://github.com/kubernetes/kubernetes/tree/master/CHANGELOG https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.19.md
查看Kubectl版本信息及节点信息
[root@localhost ~]# kubectl version --client Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.9", GitCommit:"9dd794e454ac32d97cde41ae10be801ae98f75df", GitTreeState:"clean", BuildDate:"2021-03-18T01:09:28Z", GoVersion:"go1.15.8", Compiler:"gc", Platform:"linux/amd64"} [root@localhost ~]# kubectl --kubeconfig kube_config_cluster.yml get nodes -o wide NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME k8s-cluster01-01 Ready controlplane,etcd 33m v1.19.9 192.168.3.201 <none> CentOS Linux 8 4.18.0-240.el8.x86_64 docker://19.3.15 k8s-cluster01-02 Ready worker 33m v1.19.9 192.168.3.202 <none> CentOS Linux 8 4.18.0-240.el8.x86_64 docker://19.3.15 k8s-cluster01-03 Ready worker 32m v1.19.9 192.168.3.203 <none> CentOS Linux 8 4.18.0-240.el8.x86_64 docker://19.3.15 k8s-cluster01-04 Ready worker 33m v1.19.9 192.168.3.204 <none> CentOS Linux 8 4.18.0-240.el8.x86_64 docker://19.3.15 [root@localhost ~]#