FIELD: information technology.
SUBSTANCE: software deployment to server nodes within large-scale network systems is provided using image-based deployment. A mostly immutable image is provided at a central service and transferred from the central service to the server nodes. The image includes a base image, which is immutable, and an additional image, which is writable and provides role-specific and/or node-specific state to the base portion. When a server node receives an image from the central server, the server node stores the image intact without installation. The server node then runs software directly from the stored image.
EFFECT: high reliability of deploying software to server nodes in large-scale network systems.
16 cl, 5 dwg
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