# Application Management

Two very vital services under application management subservice umbrella of AWS Systems Manager are AppConfig and Parameter Store.  

AppConfig as the name says, is used to to create, manage and deploy app configs and Parameter store secure hierarchial storage for secrets and data

### Steps for AppConfig

When an application is hosted on EC2, with the help of privileges assigned to IAM role, it can fetch the configuration of AppConfig, which internally can source configuration values from various sources such as S3, or Parameter store etc and can have multiple app config profiles with the help of Environments like Dev or Prod. 

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### Steps for Parameter Store

As explained earlier, it can be used to hold key value pair to hold data in plaintext as well as secure format. This can include Database credentials also, which can internally be used in app config, which in turn can be used by the application to access the Database

Note every parameter can have version for tracking history

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