如何将 AWS Lambda 与多个 RDS 模式连接

Question

Hi I have a question while using AWS Lambda <-> AWS RDS. Now I have a connection with one lambda function and one RDS db schema. In the Lambda function, I have config.py with this json codes.

dbinfo = {
   'db' = ~
   'user' = ~
   'passwd'= ~
   'schema' = ~
}

Lambda function works for connecting in to the RDS schema, and calling store procedure.

Right now, there is only one schema that I have to connect with Lambda function. But soon that schema will be changed to a sharding structure. (ex. game1 schema -> game1, game2 schemas)

That stored procedure will be stored at both schemas (game1, game2).

How to connect two schemas in one Lambda function?

Answer 1

Structure your config.py file something like:

dbinfo = {
  'shard1' = {
    'db' = ~
    'user' = ~
    'passwd'= ~
    'schema' = ~
  },
  'shard2' = {
    'db' = ~
    'user' = ~
    'passwd'= ~
    'schema' = ~
  },
}

and inside of your Lambda, create multiple RDS clients for each shard.

And FWIW, you might want to consider storing your password outside of code in AWS ParameterStore.