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 ~]#