安装 Neo4j 集群服务器

要在 Kubernetes 中使一切正常运行，某些 K8s 对象必须具有在其他地方引用的特定名称。每个 Neo4j 实例都是一个 Helm “发布”，并具有一个 release name。发布名称必须由小写字母数字字符、- 或 . 组成，并且必须以字母数字字符开头和结尾。

以下示例安装使用 server-1、server-2 和 server-3 作为集群成员的发布名称。

  1. 使用在创建 Helm 部署值文件中创建的部署 server-<num>.values.yaml 文件和 neo4j/neo4j Helm chart 独立安装每个服务器。

    1. 创建 neo4j 命名空间并配置为在当前上下文中使用

      kubectl create namespace neo4j
kubectl config set-context --current --namespace=neo4j

    2. 安装 server-1

      helm install server-1 neo4j/neo4j --namespace neo4j -f server-1.values.yaml
      示例输出
      NAME: server-1
LAST DEPLOYED: Wed Oct 26 11:50:41 2022
NAMESPACE: neo4j
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Thank you for installing neo4j.

Your release "server-1" has been installed in namespace "neo4j".

The neo4j user's password has been set to "my-password".

This release creates a single member of a Neo4j cluster. It will not become ready until it is able to form a working Neo4j cluster by joining other Neo4j servers. To create a working cluster at least 3 servers are required.

Once you have a working Neo4j cluster, you can access the Neo4j browser using the IP address of the my-cluster-lb-neo4j service
eg. http://[SERVICE_IP]:7474

Graphs are everywhere!

    3. 安装 server-2

      helm install server-2 neo4j/neo4j --namespace neo4j -f server-2.values.yaml
      示例输出
      NAME: server-2
LAST DEPLOYED: Wed Oct 26 11:51:27 2022
NAMESPACE: neo4j
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Thank you for installing neo4j.

Your release "server-2" has been installed in namespace "neo4j".

The neo4j user's password has been set to "my-password".

This release creates a single member of a Neo4j cluster. It will not become ready until it is able to form a working Neo4j cluster by joining other Neo4j servers. To create a working cluster at least 3 servers are required.

Once you have a working Neo4j cluster, you can access the Neo4j browser using the IP address of the my-cluster-lb-neo4j service
eg. http://[SERVICE_IP]:7474

Graphs are everywhere!

    4. 安装 server-3

      helm install server-3 neo4j/neo4j --namespace neo4j -f server-3.values.yaml
      示例输出
      NAME: server-3
LAST DEPLOYED: Wed Oct 26 11:52:02 2022
NAMESPACE: neo4j
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Thank you for installing neo4j.

Your release "server-3" has been installed in namespace "neo4j".

The neo4j user's password has been set to "my-password".

This release creates a single member of a Neo4j cluster. It will not become ready until it is able to form a working Neo4j cluster by joining other Neo4j servers. To create a working cluster at least 3 servers are required.

Once you have a working Neo4j cluster, you can access the Neo4j browser using the IP address of the my-cluster-lb-neo4j service
eg. http://[SERVICE_IP]:7474

Graphs are everywhere!

      如果您没有为 neo4j 用户传递密码，Neo4j Helm chart 已自动为您生成了一个。所有集群成员的密码都是相同的。您可以在 Helm 安装输出中找到它。请记下它。

  2. 验证已安装的服务器是否已形成集群。请参阅下一节验证 Neo4j 集群的形成。

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