put alertmanager config back into helm values

prometheus/values.yaml

@@ -1,6 +1,51 @@
 alertmanager:
   alertmanagerSpec:
     replicas: 2
+    secrets:
+      - telegram-api
+  config:
+    global:
+      resolve_timeout: 5m
+    templates:
+      - '/etc/alertmanager/config/*.tmpl'
+    route:
+      group_by: ['alertname']
+      group_wait: 30s
+      group_interval: 30s
+      repeat_interval: 24h
+      receiver: 'tg1'
+      routes:
+        - matchers:
+          - severity=warning
+          receiver: 'tg1'
+        - matchers:
+          - severity=critical
+          receiver: 'tg1'
+    receivers:
+    - name: tg1
+      telegram_configs:
+      - bot_token_file: '/etc/alertmanager/secrets/api_key'
+        chat_id: -995270884
+        api_url: "https://api.telegram.org"
+        send_resolved: true
+        parse_mode: "HTML"
+        message: '{{ template "telegram.aaron" .}}'
+    inhibit_rules:
+      - source_matchers:
+          - severity = critical
+        target_matchers:
+          - severity = warning
+        equal: ['alertname', 'server', 'instance']
+  templateFiles:
+    telegram.tmpl: |-
+      {{ define "telegram.aaron" }}
+      {{ range .Alerts }}
+      {{ if eq .Status "firing"}}🔥 <b>{{ .Labels.alertname }}</b> 🔥{{ else }}✅ <b>{{ .Labels.alertname }}</b> ✅{{ end }}
+      <b> {{ .Annotations.summary }} </b>
+
+      {{ .Annotations.description }}
+      {{ end }}
+      {{ end }}
     storage:
       volumeClaimTemplate:
        spec:
@@ -8,7 +53,6 @@ alertmanager:
          resources:
            requests:
              storage: 5Gi
-    useExistingSecret: true
   ingress:
     paths:
       - /