Cloud instance scaling method and related device thereof

A cloud instance scale-down method, wherein the method is applied to a cloud service system that comprises a first worker node on which a plurality of cloud instances are deployed, and the method comprises:

• obtaining, by the first worker node, status information of the plurality of cloud instances;
• determining, by the first worker node, a to-be-scaled-down cloud instance from the plurality of cloud instances based on the status information;
• releasing, by the first worker node, idle resources of the to-be-scaled-down cloud instance, and determining a quantity of released idle resources of the to-be-scaled-down cloud instance;
• and
• decreasing, by the first worker node, a resource quota of the to-be-scaled-down cloud instance based on the quantity of idle resources of the to-be-scaled-down cloud instance.

A worker node configured to operate in a cloud service system, the worker node comprising a memory and a processor, wherein the memory stores program code, and the processor is configured to execute the program code to perform operations comprising:

• obtaining status information of a plurality of cloud instances deployed on the worker node;
• determining, based on the status information, a to-be-scaled-up cloud instance from the plurality of cloud instances and a quantity of resources required for scale-up;
• and
• if a quantity of idle resources of the worker node is greater than or equal to the quantity of resources required for scale-up, increasing a resource quota of the to-be-scaled-up cloud instance based on the quantity of resources required for scale-up.

A worker node configured to operate in a cloud service system, the worker node comprises a memory and a processor, wherein the memory stores program code, and the processor is configured to execute the program code to perform operations comprising:

• obtaining status information of a plurality of cloud instances deployed on the worker node;
• determining a to-be-scaled-down cloud instance from the plurality of cloud instances based on the status information;
• releasing idle resources of the to-be-scaled-down cloud instance, and determining a quantity of released idle resources of the to-be-scaled-down cloud instance;
• and
• decreasing a resource quota of the to-be-scaled-down cloud instance based on the quantity of idle resources of the to-be-scaled-down cloud instance.