49 lines
5.8 KiB
Markdown
49 lines
5.8 KiB
Markdown
<!--- Hugo front matter used to generate the website version of this page:
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# Host
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## Host Attributes
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A host is defined as a computing instance. For example, physical servers, virtual machines, switches or disk array.
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| Attribute | Type | Description | Examples | Stability |
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|---|---|---|---|---|
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| <a id="host-arch" href="#host-arch">`host.arch`</a> | string | The CPU architecture the host system is running on. | `amd64`; `arm32`; `arm64` |  |
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| <a id="host-cpu-cache-l2-size" href="#host-cpu-cache-l2-size">`host.cpu.cache.l2.size`</a> | int | The amount of level 2 memory cache available to the processor (in Bytes). | `12288000` |  |
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| <a id="host-cpu-family" href="#host-cpu-family">`host.cpu.family`</a> | string | Family or generation of the CPU. | `6`; `PA-RISC 1.1e` |  |
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| <a id="host-cpu-model-id" href="#host-cpu-model-id">`host.cpu.model.id`</a> | string | Model identifier. It provides more granular information about the CPU, distinguishing it from other CPUs within the same family. | `6`; `9000/778/B180L` |  |
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| <a id="host-cpu-model-name" href="#host-cpu-model-name">`host.cpu.model.name`</a> | string | Model designation of the processor. | `11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz` |  |
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| <a id="host-cpu-stepping" href="#host-cpu-stepping">`host.cpu.stepping`</a> | string | Stepping or core revisions. | `1`; `r1p1` |  |
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| <a id="host-cpu-vendor-id" href="#host-cpu-vendor-id">`host.cpu.vendor.id`</a> | string | Processor manufacturer identifier. A maximum 12-character string. [1] | `GenuineIntel` |  |
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| <a id="host-id" href="#host-id">`host.id`</a> | string | Unique host ID. For Cloud, this must be the instance_id assigned by the cloud provider. For non-containerized systems, this should be the `machine-id`. See the table below for the sources to use to determine the `machine-id` based on operating system. | `fdbf79e8af94cb7f9e8df36789187052` |  |
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| <a id="host-image-id" href="#host-image-id">`host.image.id`</a> | string | VM image ID or host OS image ID. For Cloud, this value is from the provider. | `ami-07b06b442921831e5` |  |
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| <a id="host-image-name" href="#host-image-name">`host.image.name`</a> | 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` |  |
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| <a id="host-image-version" href="#host-image-version">`host.image.version`</a> | string | The version string of the VM image or host OS as defined in [Version Attributes](/docs/resource/README.md#version-attributes). | `0.1` |  |
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| <a id="host-ip" href="#host-ip">`host.ip`</a> | string[] | Available IP addresses of the host, excluding loopback interfaces. [2] | `["192.168.1.140", "fe80::abc2:4a28:737a:609e"]` |  |
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| <a id="host-mac" href="#host-mac">`host.mac`</a> | string[] | Available MAC addresses of the host, excluding loopback interfaces. [3] | `["AC-DE-48-23-45-67", "AC-DE-48-23-45-67-01-9F"]` |  |
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| <a id="host-name" href="#host-name">`host.name`</a> | string | Name of the host. On Unix systems, it may contain what the hostname command returns, or the fully qualified hostname, or another name specified by the user. | `opentelemetry-test` |  |
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| <a id="host-type" href="#host-type">`host.type`</a> | string | Type of host. For Cloud, this must be the machine type. | `n1-standard-1` |  |
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**[1]:** [CPUID](https://wiki.osdev.org/CPUID) command returns the vendor ID string in EBX, EDX and ECX registers. Writing these to memory in this order results in a 12-character string.
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**[2]:** 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.
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**[3]:** MAC Addresses MUST be represented in [IEEE RA hexadecimal form](https://standards.ieee.org/wp-content/uploads/import/documents/tutorials/eui.pdf): as hyphen-separated octets in uppercase hexadecimal form from most to least significant.
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`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.
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| Value | Description | Stability |
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|---|---|---|
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| `amd64` | AMD64 |  |
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| `arm32` | ARM32 |  |
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| `arm64` | ARM64 |  |
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| `ia64` | Itanium |  |
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| `ppc32` | 32-bit PowerPC |  |
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| `ppc64` | 64-bit PowerPC |  |
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| `s390x` | IBM z/Architecture |  |
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| `x86` | 32-bit x86 |  |
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