Difference between revisions of "Kubernetes pod affinity and anti affinity"
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== Official examples == | == Official examples == | ||
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| − | kind: Pod | + | apiVersion: v1 |
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| + | kind: Pod | ||
| + | |||
| + | metadata: | ||
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| + | name: with-node-affinity | ||
| + | |||
| + | spec: | ||
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| + | affinity: | ||
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| + | nodeAffinity: | ||
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| + | requiredDuringSchedulingIgnoredDuringExecution: | ||
| + | |||
| + | nodeSelectorTerms: | ||
| + | |||
| + | - matchExpressions: | ||
| + | |||
| + | - key: topology.kubernetes.io/zone | ||
| + | |||
| + | operator: In | ||
| + | |||
| + | values: | ||
| + | |||
| + | - antarctica-east1 | ||
| + | |||
| + | - antarctica-west1 | ||
| + | |||
| + | preferredDuringSchedulingIgnoredDuringExecution: | ||
| + | |||
| + | - weight: 1 | ||
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| + | preference: | ||
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| + | 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 | ||
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<pre> | <pre> | ||
Revision as of 15:16, 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
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