Use google.protobuf.Duration for VM uptime in metald/v1/vm.proto

[coderabbitai]

Description

In the VM proto definition, the uptime field currently uses int64 uptime_seconds which should be replaced with google.protobuf.Duration uptime for better type safety and consistency with protobuf best practices.

Current Implementation

message VmMetrics {
  // VM uptime in seconds
  int64 uptime_seconds = 5;
}

Proposed Change

import "google/protobuf/duration.proto";

message VmMetrics {
  // VM uptime
  google.protobuf.Duration uptime = 5;
}

Benefits

• Better type safety
• Consistent with protobuf best practices
• More semantic representation of time duration
• Field number remains the same (5) to maintain wire compatibility

Context

• PR: feat: update protos and control plane #3901
• Comment: feat: update protos and control plane #3901 (comment)
• Requester: @imeyer

File Location

go/proto/metald/v1/vm.proto lines 141-156

[linear]

ENG-2054 Use google.protobuf.Duration for VM uptime in metald/v1/vm.proto