1.10.2. 将pod分配给节点¶
1.10.2.1. nodeselector¶
nodeselector是节点选择约束最简单的方式,
可以给node打标签,然后通过pod如下配置即可。
nodeSelector:
disktype: ssd
1.10.2.2. 亲和性和反亲和性¶
这个相对nodeselector更像是软限制,nodeselector像是强制限制。
主要是2个关键词
requiredDuringSchedulingIgnoredDuringExecution
preferredDuringSchedulingIgnoredDuringExecution
apiVersion: v1
kind: Pod
metadata:
name: with-node-affinity
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/e2e-az-name
operator: In
values:
- e2e-az1
- e2e-az2
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 1
preference:
matchExpressions:
- key: another-node-label-key
operator: In
values:
- another-node-label-value
containers:
- name: with-node-affinity
image: k8s.gcr.io/pause:2.0
1.10.2.3. 反亲和性配置¶
podAntiAffinity
1.10.2.4. nodeName¶
nodeName 是节点选择约束的最简单方法,但是由于其自身限制,通常不使用它。
d之一。