Difference between revisions of "Kubernetes pod affinity and anti affinity"
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| Line 93: | Line 93: | ||
topologyKey: topology.kubernetes.io/zone | topologyKey: topology.kubernetes.io/zone | ||
| − | podAntiAffinity: | + | [[podAntiAffinity]]: |
preferredDuringSchedulingIgnoredDuringExecution: | preferredDuringSchedulingIgnoredDuringExecution: | ||
| Line 105: | Line 105: | ||
matchExpressions: | matchExpressions: | ||
| − | - key: security | + | - key: [[security]] |
operator: In | operator: In | ||
| Line 111: | Line 111: | ||
values: | values: | ||
| − | - S2 | + | - [[S2]] |
topologyKey: topology.kubernetes.io/zone | topologyKey: topology.kubernetes.io/zone | ||
| Line 119: | Line 119: | ||
- name: with-pod-affinity | - name: with-pod-affinity | ||
| − | image: registry.k8s.io/pause:2.0 | + | [[image]]: registry.k8s.io/pause:2.0 |
== Related == | == Related == | ||
Revision as of 15:20, 2 January 2023
https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity
- Elasticsearch PodAntiAffinity official example
0/11 nodes are available: 1 Insufficient cpu, 1 Too many pods, 10 nodes(s) didn't match Pod's node affinity/selector 0/2 nodes are available: 1 Too many pods, 1 nodes(s) didn't match Pod's node affinity/selector
Official examples
apiVersion: v1 kind: Pod metadata: name: with-node-affinity spec: affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: - matchExpressions: - key: topology.kubernetes.io/zone operator: In values: - antarctica-east1 - antarctica-west1 preferredDuringSchedulingIgnoredDuringExecution: - weight: 1 preference: matchExpressions: - key: another-node-label-key operator: In values: - another-node-label-value containers: - name: with-node-affinity image: registry.k8s.io/pause:2.0
apiVersion: v1
kind: Pod
metadata:
name: with-pod-affinity
spec:
affinity:
podAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: security
operator: In
values:
- S1
topologyKey: topology.kubernetes.io/zone
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
podAffinityTerm:
labelSelector:
matchExpressions:
- key: security
operator: In
values:
- S2
topologyKey: topology.kubernetes.io/zone
containers:
- name: with-pod-affinity
image: registry.k8s.io/pause:2.0
Related
default-scheduler
See also
- Pods:
kubectl apply,kubectl [ pod get | top | delete | describe pods ],InitContainers, PodInitializing, CrashLoopBackOff, ImagePullPolicy:, NodeAffinity, NodeSelector, Terminated
Advertising:
