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使用 Operator Lifecycle Manager (OLM) 安装 ClickHouse Operator

本指南介绍如何使用 Operator Lifecycle Manager (OLM) 来安装 ClickHouse Operator。

前置条件

  • Kubernetes 集群版本为 1.28.0 或更高
  • 已配置可访问集群的 kubectl
  • 集群管理员权限
  • 已安装 OLM (Operator Lifecycle Manager)

安装 OLM

如果集群中尚未安装 OLM,请先安装:

# 检查 OLM 是否已安装
kubectl get ns olm

# 如果未安装,则安装 OLM
curl -sL https://github.com/operator-framework/operator-lifecycle-manager/releases/download/v0.28.0/install.sh | bash -s v0.28.0

安装 Operator

从 GitHub Catalog 中安装

# 创建 operator 命名空间
kubectl create namespace clickhouse-operator-system

# 创建 CatalogSource
kubectl apply -f - <<EOF
apiVersion: operators.coreos.com/v1alpha1
kind: CatalogSource
metadata:
  name: clickhouse-operator-catalog
  namespace: clickhouse-operator-system
spec:
  sourceType: grpc
  image: ghcr.io/clickhouse/clickhouse-operator-catalog:latest
  displayName: ClickHouse Operator
  publisher: ClickHouse
  updateStrategy:
    registryPoll:
      interval: 30m
EOF

# 创建 OperatorGroup
kubectl apply -f - <<EOF
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  name: clickhouse-operator-group
  namespace: clickhouse-operator-system
EOF

# 创建 Subscription
kubectl apply -f - <<EOF
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: clickhouse-operator
  namespace: clickhouse-operator-system
spec:
  channel: stable-v0
  name: clickhouse-operator
  source: clickhouse-operator-catalog
  sourceNamespace: clickhouse-operator-system
  installPlanApproval: Automatic
EOF

卸载

# 删除订阅
kubectl delete subscription clickhouse-operator -n clickhouse-operator-system
# 查找所有关联资源
kubectl get operator clickhouse-operator.clickhouse-operator-system -o=jsonpath="{.status.components.refs}" | jq 'map({kind, name})'
# 删除关联资源(CRDs、Deployments 等)
kubectl delete <resource> <name> [-n <namespace>]  # 对每个找到的资源重复执行

# 删除 OperatorGroup(可选):
kubectl delete operatorgroup clickhouse-operator-group -n clickhouse-operator-system
# 删除 Operator 视图
kubectl delete operator clickhouse-operator.clickhouse-operator-system

有关卸载的更多信息,请参阅 OLM 文档

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