---
apiVersion: v1
kind: ConfigMap
metadata:
  name: matrix-alertmanager-receiver-config
  namespace: monitoring
data:
  config.yaml: |
    http:
      port: 3000
      alerts-path-prefix: /alerts
    matrix:
      homeserver-url: "http://tuwunel.matrix.svc.cluster.local:6167"
      user-id: "@alertbot:sunbeam.pt"
      access-token: "ACCESS_TOKEN_PLACEHOLDER"
      room-mapping:
        alerts: "ROOM_ID_PLACEHOLDER"
    templating:
      firing-template: |
        🔥 <strong>{{ .Alert.Labels.alertname }}</strong> [{{ .Alert.Labels.severity }}]<br/>
        {{ .Alert.Annotations.summary }}<br/>
        <em>{{ .Alert.Annotations.description }}</em>
      resolved-template: |
        ✅ <strong>RESOLVED: {{ .Alert.Labels.alertname }}</strong><br/>
        {{ .Alert.Annotations.summary }}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: matrix-alertmanager-receiver
  namespace: monitoring
  labels:
    app: matrix-alertmanager-receiver
spec:
  replicas: 1
  selector:
    matchLabels:
      app: matrix-alertmanager-receiver
  template:
    metadata:
      labels:
        app: matrix-alertmanager-receiver
    spec:
      initContainers:
        # Inject secrets into config file — the receiver reads a YAML file,
        # not env vars. We template the placeholders with real values from
        # the matrix-bot-creds Secret.
        - name: inject-secrets
          image: busybox
          command: ["sh", "-c"]
          args:
            - |
              cp /config-template/config.yaml /config/config.yaml
              sed -i "s|ACCESS_TOKEN_PLACEHOLDER|$(cat /secrets/access_token)|" /config/config.yaml
              sed -i "s|ROOM_ID_PLACEHOLDER|$(cat /secrets/room_id)|" /config/config.yaml
          volumeMounts:
            - name: config-template
              mountPath: /config-template
              readOnly: true
            - name: config
              mountPath: /config
            - name: secrets
              mountPath: /secrets
              readOnly: true
          resources:
            limits:
              memory: 16Mi
            requests:
              memory: 8Mi
              cpu: 5m
      containers:
        - name: receiver
          image: metio/matrix-alertmanager-receiver:latest
          args: ["--config-path", "/config/config.yaml"]
          ports:
            - containerPort: 3000
              protocol: TCP
          volumeMounts:
            - name: config
              mountPath: /config
              readOnly: true
          resources:
            requests:
              cpu: 10m
              memory: 32Mi
            limits:
              memory: 64Mi
      volumes:
        - name: config-template
          configMap:
            name: matrix-alertmanager-receiver-config
        - name: config
          emptyDir: {}
        - name: secrets
          secret:
            secretName: matrix-bot-creds
---
apiVersion: v1
kind: Service
metadata:
  name: matrix-alertmanager-receiver
  namespace: monitoring
  labels:
    app: matrix-alertmanager-receiver
spec:
  type: ClusterIP
  ports:
    - port: 3000
      targetPort: 3000
      protocol: TCP
  selector:
    app: matrix-alertmanager-receiver