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Alerting: Add options to configure TLS for HA using Redis (#87567)

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* Add Alerting HA Redis Client TLS configs

* Add test to ping miniredis with mTLS

* Update .ini files and docs

* Add tests for unified alerting ha redis TLS settings

* Fix malformed go.sum

* Add modowner

* Fix lint error

* Update docs and use dstls config
This commit is contained in:
Fayzal Ghantiwala
2024-05-14 14:21:42 +01:00
committed by GitHub
parent e39658097f
commit 7a2fbad0c8
11 changed files with 242 additions and 12 deletions
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7
docs/sources/alerting/set-up/configure-high-availability/_index.md
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@@ -61,11 +61,12 @@ Since gossiping of notifications and silences uses both TCP and UDP port `9094`,
As an alternative to Memberlist, you can use Redis for high availability. This is useful if you want to have a central
database for HA and cannot support the meshing of all Grafana servers.
1. Make sure you have a redis server that supports pub/sub. If you use a proxy in front of your Redis cluster, make sure the proxy supports pub/sub.
1. Make sure you have a Redis server that supports pub/sub. If you use a proxy in front of your Redis cluster, make sure the proxy supports pub/sub.
1. In your custom configuration file ($WORKING_DIR/conf/custom.ini), go to the [unified_alerting] section.
1. Set `ha_redis_address` to the Redis server address Grafana should connect to.
1. [Optional] Set the username and password if authentication is enabled on the redis server using `ha_redis_username` and `ha_redis_password`.
1. [Optional] Set `ha_redis_prefix` to something unique if you plan to share the redis server with multiple Grafana instances.
1. [Optional] Set the username and password if authentication is enabled on the Redis server using `ha_redis_username` and `ha_redis_password`.
1. [Optional] Set `ha_redis_prefix` to something unique if you plan to share the Redis server with multiple Grafana instances.
1. [Optional] Set `ha_redis_tls_enabled` to `true` and configure the corresponding `ha_redis_tls_*` fields to secure communications between Grafana and Redis with Transport Layer Security (TLS).
The following metrics can be used for meta monitoring, exposed by the `/metrics` endpoint in Grafana: