Difference between revisions of "Kubernetes pod affinity and anti affinity"
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| Line 1: | Line 1: | ||
https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity | https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity | ||
| − | == Official | + | == Official examples == |
<pre> | <pre> | ||
apiVersion: v1 | apiVersion: v1 | ||
| Line 56: | Line 56: | ||
</pre> | </pre> | ||
| + | <pre> | ||
| + | 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 | ||
| + | </pre> | ||
| − | {{K8s pods}} | + | == See also == |
| + | * {{K8s pods}} | ||
Revision as of 16:59, 20 September 2022
https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity
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
See also
- Pods:
kubectl apply,kubectl [ pod get | top | delete | describe pods ],InitContainers, PodInitializing, CrashLoopBackOff, ImagePullPolicy:, NodeAffinity, NodeSelector, Terminated
Advertising:
