AWS AppConfig

learn AWS AppConfig

create, manage, and quickly deploy application configurations. AWS AppConfig supports controlled deployments to applications of any size and includes built-in validation checks and monitoring. You can use AWS AppConfig with applications hosted on EC2 instances, AWS Lambda, containers, mobile applications, or IoT devices.

Concepts

Domain

• Application (myapp)
• Environment (dev, test, demo, prod)
• Configuration Profile - versioned configuration data. text, json, yaml, S3 object, SSM Document, SSM Parameter, CodePipeline
• Deployment - types: AllAtOnce, Linear50PercentEvery30Seconds, Canary10Percent20Minutes

Functional

• deploy configuration changes from a central location
• rules to validate your configuration. configurations that aren’t valid can’t be deployed.
  • validation types: JSON schema, Lambda. see About validators

Example(s)

get configuration via cli

aws appconfig get-configuration \
    --application 'app01' \
    --environment 'dev' \
    --configuration 'config-profile-01' \
    --client-id 'test' \
    appconfig.json

# view results in specified output file `appconfig.json`
cat appconfig.json

output

AWS Console Screenshots

Configuration profile source types

Example JSON configuration profile

Deployment Strategy Types

Start Deployment

Deployment

Resources

• AWS AppConfig Documentation
• Deploying application configuration to serverless: introducing the AWS AppConfig Lambda extension - blog post on how to use AppConfig Lambda extension
• AWS AppConfig integration with Lambda extensions -
• sessions-with-aws-sam/appconfig-lambda-extensions/README.md - good complete reference implementation on how to effectively use with lambda
• sthulb/appconfig-demo