From 34d995c0b659b275fffcfb35b295e6fa6f336063 Mon Sep 17 00:00:00 2001
From: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date: Wed, 21 Oct 2026 18:54:03 +0200
Subject: [PATCH] Declare Matrix Alertmanager receiver in Argo CD

---
 apps/matrix-alertmanager-receiver/values.yaml | 11 ++++++++
 bootstrap/kustomization.yaml                  |  2 ++
 .../matrix-alertmanager-receiver-project.yaml | 22 +++++++++++++++
 bootstrap/matrix-alertmanager-receiver.yaml   | 28 +++++++++++++++++++
 4 files changed, 63 insertions(+)
 create mode 100644 apps/matrix-alertmanager-receiver/values.yaml
 create mode 100644 bootstrap/matrix-alertmanager-receiver-project.yaml
 create mode 100644 bootstrap/matrix-alertmanager-receiver.yaml

diff --git a/apps/matrix-alertmanager-receiver/values.yaml b/apps/matrix-alertmanager-receiver/values.yaml
new file mode 100644
index 0000000..1f52ecd
--- /dev/null
+++ b/apps/matrix-alertmanager-receiver/values.yaml
@@ -0,0 +1,11 @@
+matrix:
+  homeserverUrl: https://matrix.brunner.ninja
+  userId: "@alertmanager:brunner.ninja"
+  roomMapping:
+    cluster: "!ckpLXMvXlZJtuvQBIJ:brunner.ninja"
+  accessTokenSecret:
+    name: alertmanager-matrix-auth
+    key: token
+
+serviceMonitor:
+  enabled: true
diff --git a/bootstrap/kustomization.yaml b/bootstrap/kustomization.yaml
index 61d15ad..19ff965 100644
--- a/bootstrap/kustomization.yaml
+++ b/bootstrap/kustomization.yaml
@@ -62,6 +62,8 @@ resources:
 - grafana.yaml
 - prometheus-project.yaml
 - prometheus.yaml
+- matrix-alertmanager-receiver-project.yaml
+- matrix-alertmanager-receiver.yaml
 - visual-studio-code.yaml
 - wiki-js.yaml
 - paperless-project.yaml
diff --git a/bootstrap/matrix-alertmanager-receiver-project.yaml b/bootstrap/matrix-alertmanager-receiver-project.yaml
new file mode 100644
index 0000000..00ad296
--- /dev/null
+++ b/bootstrap/matrix-alertmanager-receiver-project.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: AppProject
+metadata:
+  name: matrix-alertmanager-receiver
+  namespace: argocd
+spec:
+  description: Matrix Alertmanager webhook receiver
+  sourceRepos:
+    - https://brunner.ninja/charts
+    - https://code.brunner.ninja/feedc0de/homelab-gitops.git
+  destinations:
+    - namespace: prometheus
+      server: https://kubernetes.default.svc
+  namespaceResourceWhitelist:
+    - group: ""
+      kind: ConfigMap
+    - group: apps
+      kind: Deployment
+    - group: ""
+      kind: Service
+    - group: monitoring.coreos.com
+      kind: ServiceMonitor
diff --git a/bootstrap/matrix-alertmanager-receiver.yaml b/bootstrap/matrix-alertmanager-receiver.yaml
new file mode 100644
index 0000000..7b7498a
--- /dev/null
+++ b/bootstrap/matrix-alertmanager-receiver.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: matrix-alertmanager-receiver
+  namespace: argocd
+spec:
+  project: matrix-alertmanager-receiver
+  sources:
+    - repoURL: https://brunner.ninja/charts
+      chart: matrix-alertmanager-receiver
+      targetRevision: 2026.9.23
+      helm:
+        releaseName: matrix-alertmanager-receiver
+        valueFiles:
+          - $values/apps/matrix-alertmanager-receiver/values.yaml
+    - repoURL: https://code.brunner.ninja/feedc0de/homelab-gitops.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: prometheus
+  syncPolicy:
+    automated:
+      enabled: true
+      prune: false
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=false