anti-affinity.yaml

# This example shows how to schedule Pods on different Nodes.
apiVersion: moco.cybozu.com/v1beta2
kind: MySQLCluster
metadata:
  namespace: default
  name: test
spec:
  replicas: 3
  podTemplate:
    spec:
      affinity:
        # The anti-affinity for Pods
        # cf. https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#inter-pod-affinity-and-anti-affinity
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app.kubernetes.io/name
                operator: In
                values:
                - mysql
              - key: app.kubernetes.io/instance
                operator: In
                values:
                - test
            topologyKey: "kubernetes.io/hostname"
      containers:
      - name: mysqld
        image: ghcr.io/cybozu-go/moco/mysql:8.4.4
        resources:
          requests:
            cpu: "10"
            memory: "10Gi"
          limits:
            cpu: "10"
            memory: "10Gi"
  volumeClaimTemplates:
  - metadata:
      name: mysql-data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi