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AWS CodeDeploy facilitates blue–green deployments by automating the entire process across services such as Amazon EC2 and AWS Lambda. The service shifts traffic between the old (blue) environment and the new (green) environment, minimizing downtime and ensuring a smooth transition.
Continuous deployment (CD) is a software engineering approach in which software functionalities are delivered frequently and through automated deployments. [ 1 ] [ 2 ] [ 3 ]
RGB—Red, Green, Blue; RGBA—Red, Green, Blue, Alpha; RHL—Red Hat Linux; RHEL—Red Hat Enterprise Linux; REXX—Restructured Extended Executor Language; RIA—Rich Internet Application; RIAA—Recording Industry Association of America; RIP—Raster Image Processor; RIP—Routing Information Protocol; RIR—Regional Internet registry
This also meant that typically, deployment schedules were now determined by the software supplier, not by the customers. Such flexibility led to the rise of continuous delivery as a viable option, especially for less risky web applications. Other options for software deployment include blue–green deployment and canary release deployment.
AWS Lambda is an event-driven, serverless Function as a Service (FaaS) provided by Amazon as a part of Amazon Web Services. It is designed to enable developers to run code without provisioning or managing servers.
Deployment requires a number of components to be defined: an 'application' as a logical container for the project, a 'version' which is a deployable build of the application executable, a 'configuration template' that contains configuration information for both the Beanstalk environment and for the product. [4]
Thus, simply changing the labels of the pods or changing the label selectors on the service can be used to control which pods get traffic and which don't, which can be used to support various deployment patterns like blue–green deployments or A/B testing. This capability to dynamically control how services utilize implementing resources ...
Launch permissions that control which AWS accounts can use the AMI to launch instances; A block device mapping that specifies the volumes to attach to the instance when it's launched; The AMI filesystem is compressed, encrypted, signed, split into a series of 10 MB chunks and uploaded into Amazon S3 for storage. An XML manifest file stores ...