Generating service-to-service dependency map from DNS and fleet management system logs

A computing method, comprising:

• identifying a source identifier associated with a domain name server (DNS) request and a destination internet protocol (IP) address associated with a DNS response to the DNS request, using one or more DNS logs;
• identifying a first service associated with the source identifier and a second service associated with the destination IP address, using one or more fleet management system logs of a fleet management system;
• and
• generating a service-to-service dependency map between the identified first service and the identified second service.

A computing system, comprising:

• a processor and memory storing instructions that cause the processor to execute:
• a domain name service (DNS) log analyzer configured to:
• identify within a DNS request log a DNS request log record for a DNS request, the DNS log record including a source container identifier, a source internet protocol (IP) address, and a destination fully qualified domain name, wherein the source container identifier is associated with a source virtual machine (VM) on a computer that has been assigned the source IP address;
• and
• identify within records from a DNS response log a DNS response log record for a DNS response to the DNS request, the DNS response log record including the source container identifier, and a destination IP address included in the DNS response;
• a fleet management record analyzer configured to:
• identify, via an IP inventory database of a fleet management system, an IP inventory record including the destination IP address and an IP subscription identifier;
• identify, via an VM inventory database of the fleet management system, an VM inventory record including the source container identifier and a VM subscription identifier;
• identify, using a service tree data record, a first service associated with the VM subscription identifier within a timeframe of the DNS request and DNS response;
• and
• identify, using a service tree data record, a second service associated with the IP subscription identifier during the timeframe;
• a dependency map generator configured to:
• generate a service-to-service dependency map between the identified first service and the identified second service;
• and
• a downstream program configured to:
• receive the service-to-service dependency map as input;
• perform a processing operation based on the service-to-service dependency map;
• and
• output a processing result of the processing operation.