What is blue-green deployment strategy in SAP BC-CP-CF - Cloud Foundry?

SAP Term: blue-green deployment strategy

• Component: BC-CP-CF

• Component Name: Cloud Foundry

• Description: A release strategy that reduces downtime and risk by running two identical production configurations that alternate between active and inactive also called "Blue" and "Green".

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• Key Concepts: 
  Blue-green deployment is a strategy used to reduce downtime and risk when deploying new versions of software. It involves running two identical production environments, one called the “blue” environment and the other called the “green” environment. The blue environment is the current production environment, while the green environment is the new version of the software. When the green environment is ready, traffic is switched from the blue environment to the green environment, allowing users to access the new version of the software without any downtime. 
  
  How to use it: 
  In SAP Cloud Foundry, blue-green deployment can be used to deploy applications. To do this, you first need to create two identical applications in your Cloud Foundry space, one for the blue environment and one for the green environment. Then, you can deploy your application to both environments using the Cloud Foundry command line interface (CLI). Once both applications are deployed, you can switch traffic from one application to the other using a Cloud Foundry route command. 
  
  Tips & Tricks: 
  When using blue-green deployment in SAP Cloud Foundry, it is important to ensure that both applications are identical. This means that they should have the same configuration settings and be running on the same version of the software. Additionally, it is important to test both applications thoroughly before switching traffic from one application to another. 
  
  Related Information: 
  For more information on blue-green deployment in SAP Cloud Foundry, please refer to SAP’s official documentation on blue-green deployment in Cloud Foundry. Additionally, there are many tutorials available online that provide step-by-step instructions on how to use blue-green deployment in SAP Cloud Foundry.