Getting Started with AWS CodeDeploy

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AWS codeDeploy is a service that automates code deployments to any instance, including EC2 instances and serverless Lambda functions. CodeDeploy helps ensure that the latest application version or code change is automatically deployed to all instances without interrupting service.
Some key features of AWS codeDeploy include:

- Automatic deployments - CodeDeploy can be configured to automatically deploy application code changes from a code repository such as GitHub, BitBucket or AWS CodeCommit to any instance. This allows deployments to occur seamlessly without any manual intervention.

- Deployment configurations - CodeDeploy supports different deployment configuration types including inline, blue/green, all-at-once and lambda. The appropriate configuration can be selected based on the application type and deployment requirements. 

- Rollback capability - CodeDeploy allows deployments to be rolled back easily in case of failures. It keeps track of previous deployment revisions so rollback is just a click away if issues are found with the latest deployment.

- Multiple deployment options - Code can be deployed from code repositories, through web/API calls or directly uploaded artifacts. This allows flexibility in how code moves from development to production environments. 

- Monitoring and metrics - CodeDeploy provides visibility into deployments through a dashboard. Metrics help track deployment success and failure rates. Alarms can also be configured to notify on deployments.

- Security - As deployments are automated and managed within AWS, it ensures only approved code changes make it to instances reducing the risk of human errors. IAM roles can be configured for fine-grained access control.

In summary, AWS codeDeploy is a very useful service that automates code deployments for applications hosted on AWS. It minimizes downtime and risks while ensuring the latest code is running on all instances.

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