目录
- 查看集群信息
trnuser@k8s:~$ kubectl cluster-info
Kubernetes master is running at https://10.250.101.60:6443
KubeDNS is running at https://10.250.101.60:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Metrics-server is running at https://10.250.101.60:6443/api/v1/namespaces/kube-system/services/https:metrics-server:/proxy
To further debug and diagnose cluster problems, use ‘kubectl cluster-info dump‘.
- 查看节点标签
trnuser@k8s:~$ kubectl get nodes --show-labels
NAME STATUS ROLES AGE VERSION LABELS
k8s Ready master 15d v1.18.2 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=k8s,kubernetes.io/os=linux,node-role.kubernetes.io/master=
node1 Ready worker 15d v1.18.2 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node1,kubernetes.io/os=linux,node-role.kubernetes.io/worker=,os=linux,storage=ssd
node2 Ready worker 15d v1.18.2 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node2,kubernetes.io/os=linux,node-role.kubernetes.io/worker=,storage=ssd
node3 Ready worker 15d v1.18.2 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node3,kubernetes.io/os=linux,node-role.kubernetes.io/worker=
- 修改Node标签
kubectl edit nodes node1
# Please edit the object below. Lines beginning with a ‘#‘ will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
apiVersion: v1
kind: Node
metadata:
annotations:
kubeadm.alpha.kubernetes.io/cri-socket: /var/run/dockershim.sock
node.alpha.kubernetes.io/ttl: "0"
projectcalico.org/IPv4Address: 10.250.101.64/24
projectcalico.org/IPv4IPIPTunnelAddr: 10.244.166.128
volumes.kubernetes.io/controller-managed-attach-detach: "true"
creationTimestamp: "2021-02-23T06:49:31Z"
labels:
beta.kubernetes.io/arch: amd64
beta.kubernetes.io/os: linux
kubernetes.io/arch: amd64
kubernetes.io/hostname: node1
kubernetes.io/os: linux
node-role.kubernetes.io/worker: "" ##修改为worker
os: linux
storage: ssd
managedFields:
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:metadata:
f:annotations:
f:kubeadm.alpha.kubernetes.io/cri-socket: {}
- 给节点打标签
kubectl lable nodes node1 storagetype=ssd
kubectl label nodes node2 storagetype=hdd