kubernetes部署pods指定node

可以通过kubectl edit deployment tiller-deploy -n kube-system指定node标签即可。
例如：首先查看node标签 kubectl get node --show-labels

[root@LFA-L0170086 kubernetes]# kubectl get node --show-labels
NAME     STATUS   ROLES    AGE     VERSION   LABELS
master   Ready    master   19h     v1.15.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=master,kubernetes.io/os=linux,node-role.kubernetes.io/master=
node1    Ready    <none>   5h1m    v1.15.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node1,kubernetes.io/os=linux
node2    Ready    <none>   4h22m   v1.15.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=node2,kubernetes.io/os=linux

要将pod部署在master上，需要找出master私有标签：kubernetes.io/hostname=master
然后编辑deployment 或者yaml文件，添加nodeSelector属性：

    .......
     59         name: tiller
     60         ports:
     61         - containerPort: 44134
     62           name: tiller
     63           protocol: TCP
     64         - containerPort: 44135
     65           name: http
     66           protocol: TCP
     67         readinessProbe:
     68           failureThreshold: 3
     69           httpGet:
     70             path: /readiness
     71             port: 44135
     72             scheme: HTTP
     73           initialDelaySeconds: 1
     74           periodSeconds: 10
     75           successThreshold: 1
     76           timeoutSeconds: 1
     77         resources: {}
     78         terminationMessagePath: /dev/termination-log
     79         terminationMessagePolicy: File
     80       dnsPolicy: ClusterFirst
     81       nodeSelector:
     82         kubernetes.io/hostname: master
 .......

若是kubectl edit直接保持即可重新部署，若是yaml需要重新apply