Method for advertising availability of distributed gateway service and machines at host computer

A method for a routing instance executing on a host computer in a plurality of host computers that together implement a distributed edge service for a virtual private cloud (VPC) implemented by the plurality of host computers, the method comprising:

• at the routing instance executing on the host computer;
• detecting that a service instance has been made available on the host computer to provide a distributed edge service for ingressing data messages entering the VPC from machines outside of the VPC and destined to machines inside of the VPC;
• identifying an external network address associated with the distributed edge service used by machines outside the logical network;
• and
• advertising the identified external network address to a route server operating outside of the host computer for the route server to advertise to a gateway device of the datacenter for the gateway device to use to direct at least a subset of the ingressing data messages to the host computer for the distributed edge service,
• wherein the external network address is a first internet protocol version 6 (IPv6) network addresses based on an IP version 4 (IPv4) address associated with the distributed edge service, the IPv6 network address used to address the service instance executing on the host computer, wherein other IPv6 network addresses based on the IPv4 address associated with the distributed edge service are used to address other service instances executing on other host computers in the plurality of host computers.

A method for a routing instance executing on a host computer in a plurality of host computers in a datacenter that execute a plurality of data compute nodes (DCNs) and, together, implement first and second virtual private clouds (VPCs) for first and second tenants of the datacenter, the method comprising:

• at the routing instance executing on the host computer;
• detecting that first and second service instances have been made available on the host computer for respectively providing first and second distributed edge services for ingressing data messages entering respectively the first and second VPCs from machines outside of the first and second VPCs and destined to machines inside of the first and second VPCs;
• identifying first and second network addresses associated respectively with the instantiated first and second service instances;
• and
• advertising the identified first and second network addresses associated with the first and second service instances to a route server operating outside of the host computer for the route server to advertise to a gateway device of the datacenter for the gateway device to use to direct at least a subset of the ingressing data messages to the host computer for the first and second distributed edge services.