app

Application Management

Initialize projects, manage application versions, and configure version lifecycle using the EB CLI.

When to Use

• Initialize an EB project (eb init)
• List applications
• Manage application versions
• Configure version lifecycle rules

When NOT to Use

• Managing environments → use environment skill
• Deploying code → use deploy skill
• Checking status → use status skill

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Initialize

eb init
eb init <app-name> --region <region> --platform "<platform>"

List Applications

aws elasticbeanstalk describe-applications \
  --query 'Applications[*].[ApplicationName,DateCreated]' --output table

Application Versions

eb appversion                            # List versions
eb appversion --delete <version-label>   # Delete version

Version Lifecycle

eb appversion lifecycle                  # Configure lifecycle rules

Or via AWS CLI:

aws elasticbeanstalk update-application-resource-lifecycle \
  --application-name <app-name> \
  --resource-lifecycle-config '{
    "VersionLifecycleConfig": {
      "MaxCountRule": {"Enabled": true, "MaxCount": 200, "DeleteSourceFromS3": true},
      "MaxAgeRule": {"Enabled": true, "MaxAgeInDays": 180, "DeleteSourceFromS3": true}
    },
    "ServiceRole": "arn:aws:iam::<account>:role/aws-elasticbeanstalk-service-role"
  }' --output json

.elasticbeanstalk/config.yml

eb init creates .elasticbeanstalk/config.yml in your project root. This file stores:

• Default application name and region
• Default environment
• Platform and branch settings

# .elasticbeanstalk/config.yml (auto-generated by eb init)
branch-defaults:
  main:
    environment: my-app-prod
global:
  application_name: my-app
  default_region: us-east-1
  default_platform: Node.js 22

Add .elasticbeanstalk/ to .gitignore if it contains environment-specific settings, or commit it for shared CI/CD workflows.

---

Composability

• Create environment: Use environment skill
• Deploy code: Use deploy skill
• Platform updates: Use maintenance skill

Additional Resources

• Platforms