-
Notifications
You must be signed in to change notification settings - Fork 245
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat(discovery): Add a remote_relabel component
This allows to receive discovery relabeling rules from a remote server using a websocket connection. We plan this for an experimental way to control profile collection with Grafana Cloud Profiles.
- Loading branch information
1 parent
57944e2
commit 2d2f80f
Showing
8 changed files
with
1,366 additions
and
18 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
126 changes: 126 additions & 0 deletions
126
docs/sources/reference/components/discovery/discovery.remote_relabel.md
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| --- | ||
| canonical: https://grafana.com/docs/alloy/latest/reference/components/discovery/discovery.remote_relabel/ | ||
| description: Learn about discovery.remote_relabel | ||
| title: discovery.remote_relabel | ||
| --- | ||
|
|
||
| <span class="badge docs-labels__stage docs-labels__item">Experimental</span> | ||
|
|
||
| # discovery.remote_relabel | ||
|
|
||
| {{< docs/shared lookup="stability/experimental.md" source="alloy" version="<ALLOY_VERSION>" >}} | ||
|
|
||
| `discovery.remote_relabel` accepts relabeling rules from a remote control server using Pyroscope's [settings API]. | ||
| Additionally it is also possible for the control server to request the targets that are received by this component in order to show the effects of the rules at the central control server. | ||
|
|
||
| Multiple `discovery.remote_relabel` components can be specified by giving them different labels. | ||
|
|
||
| ## Usage | ||
|
|
||
| ```alloy | ||
| discovery.relabel "LABEL" { | ||
| targets = TARGET_LIST | ||
| websocket { | ||
| url = "ws://localhost:4040/settings.v1.SettingsService/GetCollectionRules?scope=alloy" | ||
| } | ||
| } | ||
| ``` | ||
|
|
||
| ## Arguments | ||
|
|
||
| The following arguments are supported: | ||
|
|
||
| | Name | Type | Description | Default | Required | | ||
| | --------- | ------------------- | ------------------ | ------- | -------- | | ||
| | `targets` | `list(map(string))` | Targets to relabel | | yes | | ||
|
|
||
| ## Blocks | ||
|
|
||
| The following blocks are supported inside the definition of `pyroscope.write`: | ||
|
|
||
| | Hierarchy | Block | Description | Required | | ||
| | ---------------------- | -------------- | --------------------------------------------------------- | -------- | | ||
| | websocket | [websocket][] | Control server settingss to. | yes | | ||
| | websocket > basic_auth | [basic_auth][] | Configure basic_auth for authenticating to the websocket. | no | | ||
|
|
||
| [websocket]:#websocket-block | ||
| [basic_auth]:#basic_auth-block | ||
|
|
||
| ### websocket block | ||
|
|
||
| The `websocket` block describes a single command and control server. Only one `websocket` block can ben provided. | ||
|
|
||
| The following arguments are supported: | ||
|
|
||
| | Name | Type | Description | Default | Required | | ||
| | --------------------- | ---------- | ------------------------------------------------------------------ | --------- | -------- | | ||
| | `url` | `string` | Full URL to the websocket server. Needs to start with ws:// wss:// | | yes | | ||
| | `keep_alive` | `duration` | How often to sent keep alive pings. 0 to disable. | `"295s"` | no | | ||
| | `min_backoff_period` | `duration` | Initial backoff time between retries. | `"500ms"` | no | | ||
| | `max_backoff_period` | `duration` | Maximum backoff time between retries. | `"5m"` | no | | ||
| | `max_backoff_retries` | `int` | Maximum number of retries. 0 to retry infinitely. | `10` | no | | ||
|
|
||
| ### basic_auth block | ||
|
|
||
| {{< docs/shared lookup="reference/components/basic-auth-block.md" source="alloy" version="<ALLOY_VERSION>" >}} | ||
|
|
||
| ## Exported fields | ||
|
|
||
| The following fields are exported and can be referenced by other components: | ||
|
|
||
| | Name | Type | Description | | ||
| | -------- | ------------------- | --------------------------------------------- | | ||
| | `output` | `list(map(string))` | The set of targets after applying relabeling. | | ||
| | `rules` | `RelabelRules` | The currently configured relabeling rules. | | ||
|
|
||
| ## Component health | ||
|
|
||
| `discovery.remote_relabel` is only reported as unhealthy when the websocket is not connected. | ||
|
|
||
| ## Debug information | ||
|
|
||
| | Name | Type | Description | | ||
| | --------------------------- | ----------- | -------------------------------------------------------- | | ||
| | `websocket_status` | `string` | Status of the websocket connection. | | ||
| | `websocket_connected_since` | `time.Time` | The currently configured relabeling rules. | | ||
| | `websocket_last_error` | `string` | What was the last error when reconnecting the websocket. | | ||
|
|
||
| ## Example | ||
|
|
||
| ```alloy | ||
| discovery.remote_relabel "control_profiles" { | ||
| targets = [ | ||
| { "__meta_foo" = "foo", "__address__" = "localhost", "instance" = "one", "app" = "backend" }, | ||
| { "__meta_bar" = "bar", "__address__" = "localhost", "instance" = "two", "app" = "database" }, | ||
| { "__meta_baz" = "baz", "__address__" = "localhost", "instance" = "three", "app" = "frontend" }, | ||
| ] | ||
| websocket { | ||
| url = "wss://profiles-prod-001.grafana.net/settings.v1.SettingsService/GetCollectionRules?scope=alloy" | ||
| basic_auth { | ||
| username = env("PROFILECLI_USERNAME") | ||
| password = env("PROFILECLI_PASSWORD") | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
|
|
||
| [settings API]: https://github.com/grafana/pyroscope/blob/main/api/settings/v1/setting.proto | ||
|
|
||
| <!-- START GENERATED COMPATIBLE COMPONENTS --> | ||
|
|
||
| ## Compatible components | ||
|
|
||
| `discovery.remote_relabel` can accept arguments from the following components: | ||
|
|
||
| - Components that export [Targets](../../../compatibility/#targets-exporters) | ||
|
|
||
| `discovery.remote_relabel` has exports that can be consumed by the following components: | ||
|
|
||
| - Components that consume [Targets](../../../compatibility/#targets-consumers) | ||
|
|
||
| {{< admonition type="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. | ||
| {{< /admonition >}} | ||
|
|
||
| <!-- END GENERATED COMPATIBLE COMPONENTS --> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.