3

我一直在尝试使用serverless-offline/serverless-offline-python和一系列其他节点包（serverless-s3-local例如）为我编写的一些 lambdas 构建离线测试环境。

使用serverless-offline-python，我可以启动我的 python lambda 并手动调用每个函数：

sls offline start --stage local --noTimeout --watch --port 3000
sls invoke local --stage local -f import-processor-stage-1 -d '{"event": "", "context": ""}'

这可行，但不能完全模拟 lambda 实际在做什么。理想情况下，我会模拟一个导入了新对象的 S3 存储桶，并且该操作将成为 lambda ( import-processor-stage-1) 的催化剂。

输入 serverless-s3-local。

我已经用插件配置了一个非常棒的配置，但是由于某种原因，当serverless-s3-local我触发一个事件到我的 lambda 处理程序时，我收到了这个错误：

Error while running handler { Error: Cannot find module '/Users/user/Documents/project/manager/infra/main/import_processor_stage_1'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.createHandler (/usr/local/lib/node_modules/serverless-offline/src/functionHelper.js:167:17)
    at Object.func (/Users/user/node_modules/serverless-s3-local/index.js:308:50)
    at /Users/user/node_modules/serverless-s3-local/index.js:170:11
    at SafeSubscriber.s3eventSubscription.client.s3Event.pipe.subscribe [as _next] (/Users/user/node_modules/serverless-s3-local/index.js:176:7)
    at SafeSubscriber.__tryOrUnsub (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:270:10)
    at SafeSubscriber.next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:212:14)
    at Subscriber._next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:141:22)
    at Subscriber.next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:101:12)
    at MergeMapSubscriber.notifyNext (/Users/user/node_modules/rxjs/src/internal/operators/mergeMap.ts:159:22)
    at InnerSubscriber._next (/Users/user/node_modules/rxjs/src/internal/InnerSubscriber.ts:17:17)
    at InnerSubscriber.Subscriber.next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:101:12)
    at /Users/user/node_modules/rxjs/src/internal/util/subscribeToArray.ts:9:16
    at Object.subscribeToResult (/Users/user/node_modules/rxjs/src/internal/util/subscribeToResult.ts:25:29)
    at MergeMapSubscriber._innerSub (/Users/user/node_modules/rxjs/src/internal/operators/mergeMap.ts:145:5)
    at MergeMapSubscriber._tryNext (/Users/user/node_modules/rxjs/src/internal/operators/mergeMap.ts:138:10)
    at MergeMapSubscriber._next (/Users/user/node_modules/rxjs/src/internal/operators/mergeMap.ts:122:12)
    at MergeMapSubscriber.Subscriber.next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:101:12)
    at MapSubscriber._next (/Users/user/node_modules/rxjs/src/internal/operators/map.ts:86:22)
    at MapSubscriber.Subscriber.next (/Users/user/node_modules/rxjs/src/internal/Subscriber.ts:101:12)
    at Subject.next (/Users/user/node_modules/rxjs/src/internal/Subject.ts:68:17)
    at triggerS3Event (/Users/user/node_modules/s3rver/lib/controllers.js:56:21)
    at store.putObject (/Users/user/node_modules/s3rver/lib/controllers.js:498:11)
    at storeMetadata.err (/Users/user/node_modules/s3rver/lib/stores/filesystem.js:291:13)
    at /Users/user/node_modules/graceful-fs/graceful-fs.js:111:16
    at /usr/local/lib/node_modules/serverless/node_modules/graceful-fs/graceful-fs.js:43:10
    at FSReqWrap.oncomplete (fs.js:135:15) code: 'MODULE_NOT_FOUND' }

可悲的是，我知道这些插件还处于起步阶段（尤其是serverless-offline-python），但我很确定这应该是一个非常容易解决的问题。未找到的模块实际上存在于包中！我认为这是因为它是 Python 文件而不是 JS 文件。js脚本中有没有办法接受python文件？到目前为止，我已经尝试在代码库中serverless-offline替换所有引用，但我得到了同样的错误。serverless-offline-pythonserverless-s3-local

作为参考，这是我的serverless.yml文件（作为记录，处理程序文件可用，正确定位并且在手动调用它时工作正常）：

service: catalog-import-manager

plugins:
 - serverless-s3-local
 - serverless-dynamodb-local
 - serverless-offline-python

provider:
  name: aws
  runtime: python3.6
  region: us-west-2


custom:
  s3:
    port: 8090
    directory: s3-simulated-buckets
    cors: false


resources:
  Resources:
    stage-one:
      Type: 'AWS::DynamoDB::Table'
      Properties:
        AttributeDefinitions:
          -
            AttributeName: import_id
            AttributeType: S
        KeySchema:
          -
            AttributeName: import_id
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        TableName: stage-one

    ImportBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: import


functions:
  import-processor-stage-1:
    handler: import_processor_stage_1.process_file_import
    events:
      - existingS3:
          bucket: import
          events:
            - s3:ObjectCreated:*

任何和所有的帮助表示赞赏！感谢您的关注！

可以确认这适用于 js 环境。

4

1 回答 1

2

我最终定制了serverless-s3-local库以能够调用.py文件。我最终可能会为此定制创建一个新的 github 存储库和节点包，但现在我将向用户推荐我在此处描述的上述定制。

于 2018-11-27T22:51:55.110 回答