WIP Add default alertmanager route and receiver

site-cookbooks/kosmos_prometheus/templates/default/alertmanager.yml.erb

@@ -2,11 +2,30 @@ global:
   resolve_timeout: 5m
 
 route:
-  receiver: default
-  group_by: ['alertname']
-  group_wait: 30s
-  group_interval: 5m
-  repeat_interval: 3h
+<% @route.each do |k, v| %>
+<% if k == "routes" && v.is_a?(Array) && !v.empty? %>
+  routes:
+<% v.each do |child| %>
+  - receiver: <%= child["receiver"] %>
+<% child.each do |ck, cv| %>
+<% next if ck == "receiver" %>
+    <%= ck %>: <%= cv.is_a?(Array) ? cv.inspect : cv %>
+<% end %>
+<% end %>
+<% else %>
+  <%= k %>: <%= v.is_a?(Array) ? v.inspect : v %>
+<% end %>
+<% end %>
 
 receivers:
-- name: default
+<% @receivers.each do |receiver| %>
+- name: <%= receiver["name"] %>
+<% receiver["webhook_configs"].each do |wc| %>
+  webhook_configs:
+  - url: "<%= @webhook_url %>"
+    send_resolved: <%= wc["send_resolved"] %>
+    payload:
+      room: "<%= wc["room"] %>"
+      message: '{{ .Status | toUpper }}: {{ .CommonLabels.alertname }}{{ if .CommonLabels.instance }} on {{ .CommonLabels.instance }}{{ end }}{{ if .CommonLabels.vm_host }} (host: {{ .CommonLabels.vm_host }}){{ end }} — {{ .CommonAnnotations.summary }}'
+<% end %>
+<% end %>