discovery.nerve
discovery.nerve
discovers airbnb/nerve targets stored in Zookeeper.
Usage
discovery.nerve "<LABEL>" {
servers = ["<SERVER_1>", "<SERVER_2>"]
paths = ["<PATH_1>", "<PATH_2>"]
}
Arguments
You can use the following arguments with discovery.nerve
:
Each element in the path
list can either point to a single service, or to the root of a tree of services.
Blocks
The discovery.nerve
component doesn’t support any blocks. You can configure this component with arguments.
Exported fields
The following fields are exported and can be referenced by other components:
The following meta labels are available on targets and can be used by the discovery.relabel component
__meta_nerve_endpoint_host
: The host of the endpoint.__meta_nerve_endpoint_name
: The name of the endpoint.__meta_nerve_endpoint_port
: The port of the endpoint.__meta_nerve_path
: The full path to the endpoint node in Zookeeper.
Component health
discovery.nerve
is only reported as unhealthy when given an invalid configuration.
In those cases, exported fields retain their last healthy values.
Debug information
discovery.nerve
doesn’t expose any component-specific debug information.
Debug metrics
discovery.nerve
doesn’t expose any component-specific debug metrics.
Example
discovery.nerve "example" {
servers = ["localhost"]
paths = ["/monitoring"]
timeout = "1m"
}
prometheus.scrape "demo" {
targets = discovery.nerve.example.targets
forward_to = [prometheus.remote_write.demo.receiver]
}
prometheus.remote_write "demo" {
endpoint {
url = "<PROMETHEUS_REMOTE_WRITE_URL>"
basic_auth {
username = "<USERNAME>"
password = "<PASSWORD>"
}
}
}
Replace the following:
<PROMETHEUS_REMOTE_WRITE_URL>
: The URL of the Prometheus remote_write-compatible server to send metrics to.<USERNAME>
: The username to use for authentication to theremote_write
API.<PASSWORD>
: The password to use for authentication to theremote_write
API.
Compatible components
discovery.nerve
has exports that can be consumed by the following components:
- Components that consume Targets
Note
Connecting some components may not be sensible or components may require further configuration to make the connection work correctly. Refer to the linked documentation for more details.