From ba99db2fec1f06d4965cb57feb8b3792dc5bf9a7 Mon Sep 17 00:00:00 2001
From: Laszlo Uveges <laszlo@giantswarm.io>
Date: Tue, 30 Apr 2024 10:01:30 +0200
Subject: [PATCH] Add missing crsync deployment alerts (#1147)

---
 CHANGELOG.md                                  |  5 +++-
 .../templates/alerting-rules/crsync.rules.yml | 30 +++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab04f270e..29eaad74b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,11 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Changed DeploymentNotSatisfiedBigMac alert to work for teleport related deployments only on CAPI flavored clusters
+### Added
+
+- Added alerts for absent `crsync` deployments.
 
 ### Changed
 
 - Update LokiRingUnhealthy query to avoid false positive when a new pod is starting.
+- Changed DeploymentNotSatisfiedBigMac alert to work for teleport related deployments only on CAPI flavored clusters
 
 ## [3.12.2] - 2024-04-25
 
diff --git a/helm/prometheus-rules/templates/alerting-rules/crsync.rules.yml b/helm/prometheus-rules/templates/alerting-rules/crsync.rules.yml
index 883d26cb8..de564da67 100644
--- a/helm/prometheus-rules/templates/alerting-rules/crsync.rules.yml
+++ b/helm/prometheus-rules/templates/alerting-rules/crsync.rules.yml
@@ -13,6 +13,36 @@ spec:
   groups:
   - name: crsync
     rules:
+    - alert: CrsyncDockerIoIsMissing
+      annotations:
+        description: 'CrSync deployment for docker.io is absent'
+        opsrecipe: crsync-deployments-missing/
+      expr: absent(kube_deployment_status_replicas_available{namespace="crsync", deployment="crsync-docker-io"})
+      for: 10m
+      labels:
+        area: kaas
+        cancel_if_cluster_status_creating: "true"
+        cancel_if_cluster_status_deleting: "true"
+        cancel_if_cluster_status_updating: "true"
+        cancel_if_outside_working_hours: "true"
+        severity: page
+        team: honeybadger
+        topic: releng
+    - alert: CrsyncGiantswarmAzureCrIoIsMissing
+      annotations:
+        description: 'CrSync deployment for giantswarm.azurecr.io is absent'
+        opsrecipe: crsync-deployments-missing/
+      expr: absent(kube_deployment_status_replicas_available{namespace="crsync", deployment="crsync-giantswarm-azurecr-io"})
+      for: 10m
+      labels:
+        area: kaas
+        cancel_if_cluster_status_creating: "true"
+        cancel_if_cluster_status_deleting: "true"
+        cancel_if_cluster_status_updating: "true"
+        cancel_if_outside_working_hours: "true"
+        severity: page
+        team: honeybadger
+        topic: releng
     - alert: CrsyncDeploymentNotSatisfied
       annotations:
         description: '{{`CrSync deployment {{ $labels.deployment }} is not satisfied in {{ $labels.installation }} / {{ $labels.cluster_id }} at the {{ $labels.namespace }} namespace.`}}'