Created
November 23, 2018 14:52
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AWS Step Functions with Serverless Example, including Re-Try policy, Parallel Execution and Error Handling.
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service: aws-step-functions-showcase | |
provider: | |
name: aws | |
runtime: nodejs8.10 | |
iamRoleStatements: | |
- Effect: "Allow" | |
Action: | |
- "states:StartExecution" | |
Resource: | |
- "arn:aws:states:#{AWS::Region}:#{AWS::AccountId}:stateMachine:PDFTransform" | |
- Effect: "Allow" | |
Action: | |
- "states:DescribeExecution" | |
Resource: | |
- "arn:aws:states:#{AWS::Region}:#{AWS::AccountId}:execution:PDFTransform:*" | |
functions: | |
trigger: | |
handler: handler.trigger | |
events: | |
- http: POST /trigger | |
environment: | |
STATE_MACHINE_ARN: "arn:aws:states:#{AWS::Region}:#{AWS::AccountId}:stateMachine:PDFTransform" | |
status: | |
handler: handler.status | |
events: | |
- http: GET /trigger | |
environment: | |
EXECUTION_ARN: "arn:aws:states:#{AWS::Region}:#{AWS::AccountId}:execution:PDFTransform:" | |
convert: | |
handler: handler.convert | |
transform: | |
handler: handler.transform | |
thumbnail: | |
handler: hander.thumbnail | |
rollback: | |
handler: handler.rollback | |
stepFunctions: | |
stateMachines: | |
pdfTransform: | |
name: PDFTransform | |
Description: "Takes vectorised PDFs and transforms them to PNGs with transparentbackground, also generates thumbnails for them." | |
definition: | |
StartAt: Convert | |
States: | |
Convert: | |
Type: Task | |
Next: Processing | |
Resource: arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:my-service-${opt:stage}-convert | |
Retry: | |
- ErrorEquals: | |
- States.TaskFailed | |
IntervalSeconds: 30 | |
MaxAttempts: 2 | |
BackoffRate: 2 | |
Processing: | |
Type: Parallel | |
End: true | |
Catch: | |
- ErrorEquals: | |
- States.TaskFailed | |
Next: Rollback | |
Branches: | |
- StartAt: Transform | |
States: | |
Transform: | |
Type: Task | |
Resource: arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:my-service-${opt:stage}-transform | |
End: true | |
- StartAt: Thumbnail | |
States: | |
Thumbnail: | |
Type: Task | |
Resource: arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:my-service-${opt:stage}-thumbnail | |
End: true | |
Rollback: | |
Type: Task | |
Resource: arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:my-service-${opt:stage}-rollback | |
End: true | |
plugins: | |
- serverless-step-functions | |
- serverless-pseudo-parameters |
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