external/og-aws
1
0
Fork 0
mirror of https://github.com/nickpoida/og-aws.git synced 2025-02-13 02:12:02 +00:00
Code Issues Releases Wiki Activity

Merge pull request #553 from dkavanagh/dak-add-step-functions

Browse source 
Add step functions
This commit is contained in:
Corey Quinn 2018-04-03 11:03:18 -07:00 committed by GitHub
commit ebe731f613
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 24 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
README.md
View file

@ -48,6 +48,7 @@ Table of Contents
| [Fargate](#fargate) | [📗](#fargate-basics) | [📘](#fargate-tips) | [📙](#fargate-gotchas-and-limitations) |
| [Lambda](#lambda) | [📗](#lambda-basics) | [📘](#lambda-tips) | [📙](#lambda-gotchas-and-limitations) |
| [API Gateway](#api-gateway) | [📗](#api-gateway-basics) | [📘](#api-gateway-tips) | [📙](#api-gateway-gotchas-and-limitations) |
| [Step Functions](#step-functions) | [📗](#step-function-basics) | [📘](#step-function-tips) | [📙](#step-function-gotchas-and-limitations) |
| [Route 53](#route-53) | [📗](#route-53-basics) | [📘](#route-53-tips) | |
| [CloudFormation](#cloudformation) | [📗](#cloudformation-basics) | [📘](#cloudformation-tips) | [📙](#cloudformation-gotchas-and-limitations) |
| [VPCs, Network Security, and Security Groups](#vpcs-network-security-and-security-groups) | [📗](#vpc-basics) | [📘](#vpc-and-network-security-tips) | [📙](#vpc-and-network-security-gotchas-and-limitations) |
@ -1493,6 +1494,29 @@ API Gateway
🚧 [*Please help expand this incomplete section.*](CONTRIBUTING.md)
Step Functions
------
### Step Functions Basics
- 📒 [Homepage](https://aws.amazon.com/step-functions/) ∙ [Developer guide](http://docs.aws.amazon.com/step-functions/latest/dg/welcome.html) ∙ [FAQ](https://aws.amazon.com/step-functions/faqs/) ∙ [Pricing](https://aws.amazon.com/step-functions/pricing/)
- **Step Functions** is AWS’ way to create state machines that manage a serverless workflow.
### Step Functions Tips
- A variety of structures are supported including branching, parallel operations and waits
- [Tasks](https://docs.aws.amazon.com/step-functions/latest/dg/concepts-tasks.html) represent the real work nodes and are frequently Lambda functions, but can be [Activities](https://docs.aws.amazon.com/step-functions/latest/dg/concepts-activities.html) which are externally driven tasks implemented any way you like.
- State machines have [data](https://docs.aws.amazon.com/step-functions/latest/dg/concepts-state-machine-data.html) that "flows" through the steps and can be modified and added to as the state machine executes.
- It's best if your tasks are idempotent, in part because you may want to re-run the state machine with the same input data during debugging
- The AWS Console facilitates your examining the execution state at various steps.
- The console lets you do this with a few steps:
- select the "input" tab from the failed execution
- copy the input data (JSON)
- select the state machine name in the breadcrumbs
- start a new execution, pasting the input data you copied previously
### Step Functions Gotchas and Limitations
- Step Functions are free tier eligible up to an initial 4000 transitions per month. Thereafter, the charge is $0.025 per 1000 state transitions.
- You can have many, simulatanous, executions, but be aware of lambda throttling limits. This has been per-account, pre-region, but recently became settable per-lambda.
Route 53
--------