主机¶
Status: Experimental
NOTICE Semantic Conventions are moving to a new location.
No changes to this document are allowed.
type: host
Description: A host is defined as a computing instance. For example, physical servers, virtual machines, switches or disk array.
| Attribute | Type | Description | Examples | Requirement Level |
|---|---|---|---|---|
host.id |
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 |
Recommended |
host.name |
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 |
Recommended |
host.type |
string | Type of host. For Cloud, this must be the machine type. | n1-standard-1 |
Recommended |
host.arch |
string | The CPU architecture the host system is running on. | amd64 |
Recommended |
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. | 0.1 |
Recommended |
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.
| Value | Description |
|---|---|
amd64 |
AMD64 |
arm32 |
ARM32 |
arm64 |
ARM64 |
ia64 |
Itanium |
ppc32 |
32-bit PowerPC |
ppc64 |
64-bit PowerPC |
s390x |
IBM z/Architecture |
x86 |
32-bit x86 |
Collecting host.id from non-containerized systems¶
Non-privileged Machine ID Lookup¶
When collecting host.id for non-containerized systems non-privileged lookups
of the machine id are preferred. SDK detector implementations MUST use the
sources listed below to obtain the machine id.
| OS | Primary | Fallback |
|---|---|---|
| Linux | contents of /etc/machine-id |
contents of /var/lib/dbus/machine-id |
| BSD | contents of /etc/hostid |
output of kenv -q smbios.system.uuid |
| MacOS | IOPlatformUUID line from the output of ioreg -rd1 -c "IOPlatformExpertDevice" |
- |
| Windows | MachineGuid from registry HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography |
- |
Privileged Machine ID Lookup¶
The host.id can be looked up using privileged sources. For example, Linux
systems can use the output of dmidecode -t system, dmidecode -t baseboard,
dmidecode -t chassis, or read the corresponding data from the filesystem (e.g.
cat /sys/devices/virtual/dmi/id/product_id,
cat /sys/devices/virtual/dmi/id/product_uuid, etc), however, SDK resource
detector implementations MUST not collect host.id from privileged sources. If
privileged lookup of host.id is required, the value should be injected via the
OTEL_RESOURCE_ATTRIBUTES environment variable.