Idea from gitlab-org/charts/auto-deploy-app!63. Thanks to @rob_podchaser ! - [ ] @rob_podchaser started a [discussion](https://gitlab.com/gitlab-org/charts/auto-deploy-app/-/merge_requests/63#note_317539054): (+1 comment) > @Negash - This should also support podAntiAffinity (important for High Availability scheduling). > > In fact a good 'convention over configuration' would be to enable podAntiAffinity by default so that replicas are not scheduled on the same node. > > eg. don't schedule pod 'web' on nodes already running 'web': > > ``` > metadata: > name: web > spec: > selector: > matchLabels: > app: web > replicas: 3 > template: > metadata: > labels: > app: web > spec: > affinity: > podAntiAffinity: > requiredDuringSchedulingIgnoredDuringExecution: > - labelSelector: > matchExpressions: > - key: app > operator: In > values: > - web > topologyKey: "kubernetes.io/hostname" > ``` > > from > > https://thenewstack.io/implement-node-and-pod-affinity-anti-affinity-in-kubernetes-a-practical-example/