Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

Documentation Grafana Agent Flow mode Reference Components reference discovery.uyuni

discovery.uyuni

discovery.uyuni discovers Uyuni Monitoring Endpoints and exposes them as targets.

Usage

river Copy

discovery.uyuni "LABEL" {
    server   = SERVER
    username = USERNAME
    password = PASSWORD
}

Arguments

The following arguments are supported:

no_proxy can contain IPs, CIDR notations, and domain names. IP and domain names can contain port numbers. proxy_url must be configured if no_proxy is configured.

proxy_from_environment uses the environment variables HTTP_PROXY, HTTPS_PROXY and NO_PROXY (or the lowercase versions thereof). Requests use the proxy from the environment variable matching their scheme, unless excluded by NO_PROXY. proxy_url and no_proxy must not be configured if proxy_from_environment is configured.

proxy_connect_header should only be configured if proxy_url or proxy_from_environment are configured.

Blocks

The following blocks are supported inside the definition of discovery.uyuni:

tls_config block

The following pairs of arguments are mutually exclusive and can’t both be set simultaneously:

• ca_pem and ca_file
• cert_pem and cert_file
• key_pem and key_file

When configuring client authentication, both the client certificate (using cert_pem or cert_file) and the client key (using key_pem or key_file) must be provided.

When min_version is not provided, the minimum acceptable TLS version is inherited from Go’s default minimum version, TLS 1.2. If min_version is provided, it must be set to one of the following strings:

• "TLS10" (TLS 1.0)
• "TLS11" (TLS 1.1)
• "TLS12" (TLS 1.2)
• "TLS13" (TLS 1.3)

Exported fields

The following fields are exported and can be referenced by other components:

Each target includes the following labels:

• __meta_uyuni_minion_hostname: The hostname of the Uyuni Minion.
• __meta_uyuni_primary_fqdn: The FQDN of the Uyuni primary.
• __meta_uyuni_system_id: The system ID of the Uyuni Minion.
• __meta_uyuni_groups: The groups the Uyuni Minion belongs to.
• __meta_uyuni_endpoint_name: The name of the endpoint.
• __meta_uyuni_exporter: The name of the exporter.
• __meta_uyuni_proxy_module: The name of the Uyuni module.
• __meta_uyuni_metrics_path: The path to the metrics endpoint.
• __meta_uyuni_scheme: https if TLS is enabled on the endpoint, http otherwise.

These labels are largely derived from a listEndpoints API call to the Uyuni Server.

Component health

discovery.uyuni is only reported as unhealthy when given an invalid configuration. In those cases, exported fields retain their last healthy values.

Debug information

discovery.uyuni does not expose any component-specific debug information.

Debug metrics

discovery.uyuni does not expose any component-specific debug metrics.

Example

river Copy

discovery.uyuni "example" {
  server    = "https://127.0.0.1/rpc/api"
  username  = UYUNI_USERNAME
  password  = UYUNI_PASSWORD
}

prometheus.scrape "demo" {
  targets    = discovery.uyuni.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:

• UYUNI_USERNAME: The username to use for authentication to the Uyuni server.
• UYUNI_PASSWORD: The password to use for authentication to the Uyuni server.
• 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 the remote_write API.
• PASSWORD: The password to use for authentication to the remote_write API.

Compatible components

discovery.uyuni has exports that can be consumed by the following components:

• Components that consume Targets