[resource/host] Add semantic convention for IP addresses of a host

docs/resource/host.md

@@ -16,6 +16,9 @@
 | `host.image.name` | string | Name of the VM image or OS install the host was instantiated from. | `infra-ami-eks-worker-node-7d4ec78312`; `CentOS-8-x86_64-1905` | Recommended |
 | `host.image.id` | string | VM image ID or host OS image ID. For Cloud, this value is from the provider. | `ami-07b06b442921831e5` | Recommended |
 | `host.image.version` | string | The version string of the VM image or host OS as defined in [Version Attributes](README.md#version-attributes). | `0.1` | Recommended |
+| `host.ip` | string[] | Available IP addresses of the host, excluding loopback interfaces. [1] | `[192.168.1.140, fe80::abc2:4a28:737a:609e]` | Opt-In |
+
+**[1]:** IPv4 Addresses MUST be specified in dotted-quad notation. IPv6 addresses MUST be specified in the [RFC 5952](https://www.rfc-editor.org/rfc/rfc5952.html) format.
 
 `host.arch` has the following list of well-known values. If one of them applies, then the respective value MUST be used, otherwise a custom value MAY be used.
 

model/resource/host.yaml

@@ -70,3 +70,12 @@ groups:
           The version string of the VM image or host OS as defined in
           [Version Attributes](README.md#version-attributes).
         examples: ['0.1']
+      - id: ip
+        type: string[]
+        requirement_level: opt_in
+        brief: >
+          Available IP addresses of the host, excluding loopback interfaces.
+        note: >
+          IPv4 Addresses MUST be specified in dotted-quad notation. IPv6 addresses
+          MUST be specified in the [RFC 5952](https://www.rfc-editor.org/rfc/rfc5952.html) format.
+        examples: ["192.168.1.140", "fe80::abc2:4a28:737a:609e"]