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Merge pull request #181 from appuio/map-alerts-to-syn-teams
Automatic alert mapping from application (instance) to team
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| local com = import 'lib/commodore.libjsonnet'; | ||
| local kap = import 'lib/kapitan.libjsonnet'; | ||
| local kube = import 'lib/kube.libjsonnet'; | ||
| local prom = import 'lib/prom.libsonnet'; | ||
|
|
||
| local inv = kap.inventory(); | ||
| local params = inv.parameters; | ||
|
|
||
| local adParams = params.openshift4_monitoring.alertManagerAutoDiscovery; | ||
|
|
||
| local nullReceiver = '__component_openshift4_monitoring_null'; | ||
|
|
||
| // discoverNS returns the namespace for the given application. | ||
| // It looks into the follwing places: | ||
| // - params.<app>.namespace | ||
| // - params.<app>.namespace.name | ||
| // It does respect aliased applications and looks in the instance first and then in the base application. | ||
| local discoverNS = function(app) | ||
| local f = function(k) | ||
| if std.objectHas(params, k) then | ||
| local p = params[k]; | ||
| if std.objectHas(p, 'namespace') then | ||
| if std.isString(p.namespace) then | ||
| p.namespace | ||
| else if std.isObject(p.namespace) && std.objectHas(p.namespace, 'name') && std.isString(p.namespace.name) then | ||
| p.namespace.name; | ||
|
|
||
| local ks = prom.appKeys(app); | ||
| local aliased = f(ks[0]); | ||
| if aliased != null then | ||
| aliased | ||
| else if std.length(ks) == 2 then | ||
| f(ks[1]); | ||
|
|
||
|
|
||
| local ownerOrFallbackTeam = | ||
| if std.objectHas(params, 'syn') && std.objectHas(params.syn, 'owner') then | ||
| params.syn.owner | ||
| else | ||
| params.openshift4_monitoring.fallback_team; | ||
|
|
||
| // teamToNS is a map from a team to namespaces. | ||
| local teamToNS = std.foldl( | ||
| function(prev, app) | ||
| prev { [prom.teamForApplication(app)]+: [ discoverNS(app) ] }, | ||
| inv.applications, | ||
| {} | ||
| ); | ||
|
|
||
| // teamBasedRouting contains discovered routes for teams. | ||
| // The routes are set up with `continue: true` so we can route to multiple teams. | ||
| // The last route catches all alerts already routed to a team. | ||
| local teamBasedRouting = std.map( | ||
| function(k) { | ||
| receiver: adParams.team_receiver_format % k, | ||
| matchers: adParams.additional_alert_matchers + [ | ||
| 'namespace =~ "%s"' % std.join('|', teamToNS[k]), | ||
| ], | ||
| continue: true, | ||
| }, | ||
| std.objectFields(teamToNS) | ||
| ) + [ { | ||
| // catch all alerts already routed to a team | ||
| receiver: nullReceiver, | ||
| matchers: adParams.additional_alert_matchers + [ | ||
| 'namespace =~ "%s"' % std.join('|', std.foldl(function(prev, nss) prev + nss, std.objectValues(teamToNS), [])), | ||
| ], | ||
| continue: false, | ||
| } ]; | ||
|
|
||
| local alertmanagerConfig = | ||
| local routes = std.get(params.openshift4_monitoring.alertManagerConfig.route, 'routes', []); | ||
| params.openshift4_monitoring.alertManagerConfig { | ||
| receivers+: [ { name: nullReceiver } ], | ||
| route+: { | ||
| routes: adParams.prepend_routes + teamBasedRouting + adParams.append_routes + routes + if ownerOrFallbackTeam != null then [ { | ||
| receiver: adParams.team_receiver_format % ownerOrFallbackTeam, | ||
| } ] else [ { receiver: nullReceiver } ], | ||
| }, | ||
| }; | ||
|
|
||
| { | ||
| debugConfigMap: kube.ConfigMap('discovery-debug') { | ||
| data: { | ||
| local discoveredNamespaces = std.foldl(function(prev, app) prev { [app]: discoverNS(app) }, inv.applications, {}), | ||
| local discoveredTeams = std.foldl(function(prev, app) prev { [app]: prom.teamForApplication(app) }, inv.applications, {}), | ||
| applications: std.manifestJsonMinified(inv.applications), | ||
| discovered_namespaces: std.manifestYamlDoc(discoveredNamespaces), | ||
| apps_without_namespaces: std.manifestYamlDoc(std.foldl(function(prev, app) if discoveredNamespaces[app] == null then prev + [ app ] else prev, std.objectFields(discoveredNamespaces), [])), | ||
| discovered_teams: std.manifestYamlDoc(discoveredTeams), | ||
| proposed_routes: std.manifestYamlDoc(teamBasedRouting), | ||
| alertmanager: std.manifestYamlDoc(alertmanagerConfig), | ||
| }, | ||
| }, | ||
| alertmanagerConfig: alertmanagerConfig, | ||
| } |
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