安装 Neo4j 集群服务器

使所有内容在 Kubernetes 中正常工作需要某些 K8s 对象具有特定名称，这些名称在其他地方引用。每个 Neo4j 实例都是一个 Helm“发布”，并具有发布名称。发布名称必须包含小写字母数字字符、- 或 .，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 图表，分别安装每个服务器。

    1. 创建一个neo4j 命名空间并将其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 图表会为您自动生成一个密码。该密码对于所有集群成员都相同。您可以在 Helm 安装输出中找到它。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。