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What is Blue/Green Deployment Pattern? |
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Answer» A blue-green pattern is a TYPE of continuous deployment, application release pattern which focuses on gradually transferring the user traffic from a previously working VERSION of the software or service to an almost identical new release - both VERSIONS running on production. The blue environment would indicate the OLD version of the application whereas the green environment would be the new version. The production traffic would be moved gradually from blue to green environment and once it is fully transferred, the blue environment is kept on hold just in case of rollback necessity. In this pattern, the team has to ensure two identical prod environments but only one of them would be LIVE at a given point of time. Since the blue environment is more steady, the LIVE one is USUALLY the blue environment. |
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