Revert "feat(grafana alerts): add notification channel (email) for grafana alerts"

This reverts commit c9d14d451f.

template/stacks/observability-client/vm-client-stack/values.yaml

@@ -537,25 +537,104 @@ alertmanager:
   # -- (object) Alertmanager configuration
   config:
     route:
-      receiver: "outlook"
+      receiver: "blackhole"
-      routes: 
+    #   group_by: ["alertgroup", "job"]
-        - matchers:
+    #   group_wait: 30s
-            - alertname=~".*"
+    #   group_interval: 5m
-          receiver: outlook
+    #   repeat_interval: 12h
-    receivers:
+    #   routes:
-      - name: outlook
+    #
-        email_configs:
+    #     # Duplicate code_owner routes to teams
-          - smarthost: 'mail.mms-support.de:465'
+    #     # These will send alerts to team channels but continue
-            auth_username: 'ipcei-cis-devfw@mms-support.de'
+    #     # processing through the rest of the tree to handled by on-call
-            auth_password: 
+    #     - matchers:
-              name: email-user-credentials
+    #         - code_owner_channel!=""
-              key: connection-string
+    #         - severity=~"info|warning|critical"
-            from: '"IPCEI CIS DevFW" <ipcei-cis-devfw@mms-support.de>'
+    #       group_by: ["code_owner_channel", "alertgroup", "job"]
-            to: 'ipcei-cis-devfw@mms-support.de'
+    #       receiver: slack-code-owners
-            headers:
+    #
-              subject: 'Grafana Mail Alerts'
+    #     # Standard on-call routes
-            require_tls: false
+    #     - matchers:
+    #         - severity=~"info|warning|critical"
+    #       receiver: slack-monitoring
+    #       continue: true
+    #
+    # inhibit_rules:
+    #   - target_matchers:
+    #       - severity=~"warning|info"
+    #     source_matchers:
+    #       - severity=critical
+    #     equal:
+    #       - cluster
+    #       - namespace
+    #       - alertname
+    #   - target_matchers:
+    #       - severity=info
+    #     source_matchers:
+    #       - severity=warning
+    #     equal:
+    #       - cluster
+    #       - namespace
+    #       - alertname
+    #   - target_matchers:
+    #       - severity=info
+    #     source_matchers:
+    #       - alertname=InfoInhibitor
+    #     equal:
+    #       - cluster
+    #       - namespace
 
+    receivers:
+      - name: blackhole
+    # - name: "slack-monitoring"
+    #   slack_configs:
+    #     - channel: "#channel"
+    #       send_resolved: true
+    #       title: '{{ template "slack.monzo.title" . }}'
+    #       icon_emoji: '{{ template "slack.monzo.icon_emoji" . }}'
+    #       color: '{{ template "slack.monzo.color" . }}'
+    #       text: '{{ template "slack.monzo.text" . }}'
+    #       actions:
+    #         - type: button
+    #           text: "Runbook :green_book:"
+    #           url: "{{ (index .Alerts 0).Annotations.runbook_url }}"
+    #         - type: button
+    #           text: "Query :mag:"
+    #           url: "{{ (index .Alerts 0).GeneratorURL }}"
+    #         - type: button
+    #           text: "Dashboard :grafana:"
+    #           url: "{{ (index .Alerts 0).Annotations.dashboard }}"
+    #         - type: button
+    #           text: "Silence :no_bell:"
+    #           url: '{{ template "__alert_silence_link" . }}'
+    #         - type: button
+    #           text: '{{ template "slack.monzo.link_button_text" . }}'
+    #           url: "{{ .CommonAnnotations.link_url }}"
+    # - name: slack-code-owners
+    #   slack_configs:
+    #     - channel: "#{{ .CommonLabels.code_owner_channel }}"
+    #       send_resolved: true
+    #       title: '{{ template "slack.monzo.title" . }}'
+    #       icon_emoji: '{{ template "slack.monzo.icon_emoji" . }}'
+    #       color: '{{ template "slack.monzo.color" . }}'
+    #       text: '{{ template "slack.monzo.text" . }}'
+    #       actions:
+    #         - type: button
+    #           text: "Runbook :green_book:"
+    #           url: "{{ (index .Alerts 0).Annotations.runbook }}"
+    #         - type: button
+    #           text: "Query :mag:"
+    #           url: "{{ (index .Alerts 0).GeneratorURL }}"
+    #         - type: button
+    #           text: "Dashboard :grafana:"
+    #           url: "{{ (index .Alerts 0).Annotations.dashboard }}"
+    #         - type: button
+    #           text: "Silence :no_bell:"
+    #           url: '{{ template "__alert_silence_link" . }}'
+    #         - type: button
+    #           text: '{{ template "slack.monzo.link_button_text" . }}'
+    #           url: "{{ .CommonAnnotations.link_url }}"
+    #
   # -- Better alert templates for [slack source](https://gist.github.com/milesbxf/e2744fc90e9c41b47aa47925f8ff6512)
   monzoTemplate:
     enabled: true