Software-defined data center, and deployment method for service cluster therein

A software defined networking (SDN) controller of a software-defined data center being virtualized on at least a computing device, the computing device comprising:

• a processor;
• a bus;
• and
• a memory configured to store an executable instruction, wherein the processor and the memory are connected via the bus and wherein the processor executes the executable instruction stored in the memory to cause the SDN controller to perform operations comprising:
• obtaining an online event from an edge switch, wherein the online event indicates that a virtual machine is newly online;
• determining a media access control (MAC) address of the online virtual machine matches a MAC address of one of multiple static virtual machines defined in the software-defined data center, to detect that the one of the multiple static virtual machines defined in the software-defined data center is newly online, wherein each static virtual machine is configured with an Internet Protocol (IP) address and a Media Access Control (MAC) address, and the multiple static virtual machines belong to one or more service clusters, each service cluster providing a single type of services, wherein static virtual machines within a service cluster are configured with a same IP address;
• detecting whether the service cluster which the online virtual machine belongs to is created;
• creating a new service cluster by using a shared IP address as an identifier in response to determining that the service cluster which the online virtual machine belongs to has not been created;
• and
• deploying the online virtual machine to a first service cluster in the one or more service clusters based on an IP address of the online virtual machine, wherein the IP address of the online virtual machine is identical to the IP address of static virtual machines within the first service cluster.

A non-transitory machine-readable medium having instructions stored therein, which when executed by a processor, cause the processor to perform a method for deploying a virtual machine in a software-defined data center including multiple static virtual machines, wherein the multiple static virtual machines are detected as being offline by a software defined networking (SDN) controller, the method comprising:

• obtaining, by the SDN controller in the software-defined data center, an online event from an edge switch coupled to the SDN controller, wherein the online event indicates that a virtual machine is newly online;
• determining, by the SDN controller, a media access control (MAC) address of the online virtual machine matches a MAC address of one of the multiple static virtual machines, to detect that the one of the multiple static virtual machines defined in the software-defined data center is newly online, wherein the multiple static virtual machines belong to one or more service clusters, each service cluster providing a single type of services, wherein static virtual machines within a service cluster are configured with a same Internet Protocol (IP) address;
• detecting whether the service cluster which the online virtual machine belongs to is created;
• creating a new service cluster by using a shared IP address as an identifier in response to determining that the service cluster which the online virtual machine belongs to has not been created;
• and
• deploying, by the SDN controller, the online virtual machine to a first service cluster in the one or more service clusters based on an IP address of the online virtual machine, wherein the IP address of the online virtual machine is identical to the IP address of static virtual machines within the first service cluster.