* Alerting: Allow hooking into request handler functions.
Adds a facility to AlertNG for hooking into API handlers, allowing the
replacement of request handlers for specific paths. One of goals of this
approach was to allow hooking as late as possible in the request, e.g.
after all middleware has been applied, to simplfiy usage.
* Update pkg/services/ngalert/api/hooks.go
Co-authored-by: gotjosh <josue.abreu@gmail.com>
* Update pkg/services/ngalert/api/hooks.go
Co-authored-by: gotjosh <josue.abreu@gmail.com>
* Update pkg/services/ngalert/ngalert.go
Co-authored-by: gotjosh <josue.abreu@gmail.com>
* Fixes to review comments
* Fix passing logger in
---------
Co-authored-by: gotjosh <josue.abreu@gmail.com>
This changes the API codegen template (controller-api.mustache) to simplify some names. When this package was created, most APIs "forked" to either a Grafana backend implementation or a "Lotex" remote implementation. As we have added APIs it's no longer the case. Provisioning, configuration, and testing APIs do not fork, and we are likely to add additional APIs that don't fork.
This change replaces {{classname}}ForkingService with {{classname}} for interface names, and names the concrete implementation {{classname}}Handler. It changes the implied implementation of a route handler from fork{{nickname}} to handle{{nickname}}. So PrometheusApiForkingService becomes PrometheusApi, ForkedPrometheusApi becomes PrometheusApiHandler and forkRouteGetGrafanaAlertStatuses becomes handleRouteGetGrafanaAlertStatuses
It also renames some files - APIs that do no forking go from forked_{{name}}.go to {{name}}.go and APIs that still fork go from forked_{{name}}.go to forking_{{name}}.go to capture the idea that those files a "doing forking" rather than "are a fork of something."
Signed-off-by: Joe Blubaugh <joe.blubaugh@grafana.com>
* require legacy Editor for post, put, delete endpoints
* require user to be signed in on group level because handler that checks that user has role Editor does not check it is signed in
* Alerting: Refactor & fix unified alerting metrics structure
Fixes and refactors the metrics structure we have for the ngalert service. Now, each component has its own metric struct that includes the JUST the metrics it uses. Additionally, I have fixed the configuration metrics and added new metrics to determine if we have discovered and started all the necessary configurations of an instance.
This allows us to alert on `grafana_alerting_discovered_configurations - grafana_alerting_active_configurations != 0` to know whether an alertmanager instance did not start successfully.
* Alerting: Expose discovered and dropped Alertmanagers
Exposes the API for discovered and dropped Alertmanagers.
* make admin config poll interval configurable
* update after rebase
* wordsmith
* More wordsmithing
* change name of the config
* settings package too
* Alerting: Send alerts to external Alertmanager(s)
Within this PR we're adding support for registering or unregistering
sending to a set of external alertmanagers. A few of the things that are
going are:
- Introduce a new table to hold "admin" (either org or global)
configuration we can change at runtime.
- A new periodic check that polls for this configuration and adjusts the
"senders" accordingly.
- Introduces a new concept of "senders" that are responsible for
shipping the alerts to the external Alertmanager(s). In a nutshell,
this is the Prometheus notifier (the one in charge of sending the alert)
mapped to a multi-tenant map.
There are a few code movements here and there but those are minor, I
tried to keep things intact as much as possible so that we could have an
easier diff.
