fix: switch bitnami Prometheus repos to legacy ones and fix alerts

chart/infra-server/Chart.yaml

@@ -15,5 +15,5 @@ dependencies:
     version: "0.45.9"
     repository: "https://argoproj.github.io/argo-helm"
   - name: kube-prometheus
-    version: 11.1.1
+    version: 11.3.10
     repository: https://charts.bitnami.com/bitnami

chart/infra-server/monitoring-values.yaml

@@ -1,6 +1,8 @@
 kube-prometheus:
   namespaceOverride: monitoring
   operator:
+    image:
+      repository: bitnamilegacy/prometheus-operator
     resources:
       limits:
         cpu: 100m
@@ -14,6 +16,8 @@ kube-prometheus:
       enabled: false
 
   prometheus:
+    image:
+      repository: bitnamilegacy/prometheus
     persistence:
       enabled: true
     resources:
@@ -45,6 +49,8 @@ kube-prometheus:
     enabled: false
 
   alertmanager:
+    image:
+      repository: bitnamilegacy/alertmanager
     resources:
       limits:
         cpu: 100m

chart/infra-server/requirements.lock

@@ -4,6 +4,6 @@ dependencies:
   version: 0.45.9
 - name: kube-prometheus
   repository: https://charts.bitnami.com/bitnami
-  version: 11.1.1
-digest: sha256:46322f064751933585c0985dad77996ed8ee216df0fed19ea9c40f7935f67ae7
-generated: "2025-03-05T10:30:52.962223+01:00"
+  version: 11.3.10
+digest: sha256:59c5c412a14a5ce69cdc7745be5d37603ee0e7748608a586a2b812da4457e60a
+generated: "2025-10-01T13:00:11.143106+02:00"

chart/infra-server/templates/monitoring/alertmanager.yaml

@@ -11,8 +11,15 @@ spec:
   route:
     receiver: 'slack-notifications'
     groupBy: [alertname, job, app]
+    routes:
+    - matchers:
+      - name: alertname
+        value: InfoInhibitor
+      receiver: 'null'
+      continue: false
 
   receivers:
+  - name: 'null'
   - name: 'slack-notifications'
     slackConfigs:
     - apiURL:

chart/infra-server/templates/monitoring/rules.yaml

@@ -10,7 +10,7 @@ spec:
     interval: 30s
     rules:
     - alert: Workflow Error
-      expr: increase(argo_workflows_count{status="Error"}[5m]) > 0
+      expr: increase(argo_workflows_gauge{status="Error"}[5m]) > 0
       for: 1m
       annotations:
         summary: A workflow has errored
@@ -20,7 +20,7 @@ spec:
         namespace: monitoring
         environment: {{ .Values.environment }}
     - alert: Workflow Failure
-      expr: increase(argo_workflows_count{status="Failed"}[5m]) > 0
+      expr: increase(argo_workflows_gauge{status="Failed"}[5m]) > 0
       for: 1m
       annotations:
         summary: A workflow has failed.