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# Grafana Alloy
This role deploys an instance of Grafana Alloy with configuration that by
default:
- Exports the system journal to the configured Loki instance
- Exports other log files as configured below
It requires the addition of the Grafana package repository to allow Alloy to be
installed with `apt`. This is handled by the role.
## Configuration values
Loki configuration options:
- `alloy_loki_endpoint`: The Loki log push endpoint to stream logs into.
- `alloy_loki_user`: Basic authentication username for Loki.
- `alloy_loki_password`: Basic authentication password for Loki.
Optional configuration options:
- `alloy_extra_files`: A list of objects with `name` and `path` that configure
extra file sources to be shipped to Loki (in addition to the journal and paths
mentioned above). Wildcards are supported. The `name` attribute must be
alphanumeric or `_`.
Defaulted configuration options:
- `alloy_grafana_signing_key`: Signing key URL to use for Grafana packages
(default: `https://apt.grafana.com/gpg.key`)
- `alloy_grafana_signing_key_fingerprint`: Expected key fingerprint from above
configuration key, used to prevent malicious tampering (default: most recent
known fingerprint of above address)
- `alloy_grafana_repository`: Repository to configure and add to aptitude
(default: `deb https://apt.grafana.com stable main`)
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