3.1 使用 Helm 部署

此处可见创建 MySQL InnoDB 集群的潜在价值： 

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$> helm show values mysql-operator/mysql-innodbcluster

公共登记处

最常见的 Helm 存储库是公共 https://artifacthub.io/，这些示例使用了它。

此示例使用默认命名空间中的所有默认值，并将 mycluster 作为发布名称： 

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$> helm install mycluster mysql-operator/mysql-innodbcluster

这个简单安装的清单类似于： 

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$> helm get manifest mycluster

---
# Source: mysql-innodbcluster/templates/service_account_cluster.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: mycluster-sa
  namespace: default
---
# Source: mysql-innodbcluster/templates/cluster_secret.yaml
apiVersion: v1
kind: Secret
metadata:
  name: mycluster-cluster-secret
  namespace: default
stringData:
  rootUser: root
  rootHost: "%"
  rootPassword: sakila
---
# Source: mysql-innodbcluster/templates/deployment_cluster.yaml
apiVersion: mysql.oracle.com/v2
kind: InnoDBCluster
metadata:
  name: mycluster
  namespace: default
spec:
  instances: 3
  router:
    instances: 1
  secretName: mycluster-cluster-secret
  imagePullPolicy : IfNotPresent
  baseServerId: 1000
  version: 8.0.31
  serviceAccountName: mycluster-sa
  tls:
    useSelfSigned: false

或者使用命令行参数设置选项： 

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$> helm install mycluster mysql-operator/mysql-innodbcluster \
    --set credentials.root.user='root' \
    --set credentials.root.password='sakila' \
    --set credentials.root.host='%' \
    --set serverInstances=3 \
    --set routerInstances=1 \
    --set tls.useSelfSigned=true

查看用户为现有集群提供的值： 

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$> helm get values mycluster

USER-SUPPLIED VALUES:
credentials:
  root:
    host: '%'
    password: sakila
    user: root
routerInstances: 1
serverInstances: 3
tls:
  useSelfSigned: true

另见第 4 章，连接到 MySQL InnoDB 集群。