範例：主要版本從 1.1.1.0 升級至 1.2.0.2，其中具有自訂參數群組

尋找您要升級的 DBCluster，以及您用來建立它的範本。例如：

Description: Base Template to create Neptune Stack with Engine Version 1.1.1.0 using custom Parameter Groups 
Parameters:
  DbInstanceType:
    Description: Neptune DB instance type
    Type: String
    Default: db.r5.large
Resources:
  NeptuneDBClusterParameterGroup:
    Type: 'AWS::Neptune::DBClusterParameterGroup'
    Properties:
      Name: engineupgradetestcpg
      Family: neptune1
      Description: 'NeptuneDBClusterParameterGroup with family neptune1'
      Parameters:
        neptune_enable_audit_log: 0
  NeptuneDBParameterGroup:
    Type: 'AWS::Neptune::DBParameterGroup'
    Properties:
      Name: engineupgradetestpg
      Family: neptune1
      Description: 'NeptuneDBParameterGroup1 with family neptune1'
      Parameters:
        neptune_query_timeout: 20000
  NeptuneDBCluster:
    Type: 'AWS::Neptune::DBCluster'
    Properties:
      EngineVersion: 1.1.1.0
      DBClusterParameterGroupName:
        Ref: NeptuneDBClusterParameterGroup
    DependsOn:
      - NeptuneDBClusterParameterGroup
  NeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
      DBParameterGroupName:
        Ref: NeptuneDBParameterGroup
    DependsOn:
      - NeptuneDBCluster
      - NeptuneDBParameterGroup
Outputs:
  DBClusterId:
    Description: Neptune Cluster Identifier
    Value:
      Ref: NeptuneDBCluster

• 將自訂DBClusterParameterGroup系列更新為此處新引擎版本所使用的自訂系列default.neptune1.2)。

• 對於每個DBInstance附加到的DBCluster，請將自訂DBParameterGroup系列更新為新引擎版本所使用的自訂系列 (此處default.neptune1.2)。

• 將 DBInstanceParameterGroupName 屬性設定為該系列中的參數群組 (此處的 default.neptune1.2)。

• 將 EngineVersion 屬性從 1.1.0.0 更新為 1.2.0.2。

範本應如下所示：

Description: Template to upgrade major engine version to 1.2.0.2 by modifying existing custom parameter groups
Parameters:
  DbInstanceType:
    Description: Neptune DB instance type
    Type: String
    Default: db.r5.large
Resources:
  NeptuneDBClusterParameterGroup:
    Type: 'AWS::Neptune::DBClusterParameterGroup'
    Properties:
      Name: engineupgradetestcpgnew
      Family: neptune1.2
      Description: 'NeptuneDBClusterParameterGroup with family neptune1.2'
      Parameters:
        neptune_enable_audit_log: 0
  NeptuneDBParameterGroup:
    Type: 'AWS::Neptune::DBParameterGroup'
    Properties:
      Name: engineupgradetestpgnew
      Family: neptune1.2
      Description: 'NeptuneDBParameterGroup1 with family neptune1.2'
      Parameters:
        neptune_query_timeout: 20000
  NeptuneDBCluster:
    Type: 'AWS::Neptune::DBCluster'
    Properties:
      EngineVersion: 1.2.0.2
      DBClusterParameterGroupName:
        Ref: NeptuneDBClusterParameterGroup
      DBInstanceParameterGroupName:
        Ref: NeptuneDBParameterGroup
    DependsOn:
      - NeptuneDBClusterParameterGroup
  NeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
      DBParameterGroupName:
        Ref: NeptuneDBParameterGroup
    DependsOn:
      - NeptuneDBCluster
      - NeptuneDBParameterGroup
Outputs:
  DBClusterId:
    Description: Neptune Cluster Identifier
    Value:
      Ref: NeptuneDBCluster

現在使用 AWS CloudFormation 來執行修訂的範本。