Remove upstream prometheus cookbook, migrate to our own

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

@@ -0,0 +1,31 @@
+global:
+<% @global_config.each do |k, v| %>
+  <%= k %>: "<%= v %>"
+<% end %>
+
+scrape_configs:
+<% @jobs.each do |name, job| %>
+- job_name: "<%= name %>"
+<% if job['scrape_interval'] %>
+  scrape_interval: "<%= job['scrape_interval'] %>"
+<% end %>
+<% if job['scrape_timeout'] %>
+  scrape_timeout: "<%= job['scrape_timeout'] %>"
+<% end %>
+  metrics_path: "<%= job.fetch('metrics_path', '/metrics') %>"
+  static_configs:
+    - targets: <%= Array(job['targets']) %>
+<% if job['labels'] %>
+      labels:
+<% job['labels'].each do |label, label_config| %>
+        <%= label %>: <%= label_config %>
+<% end %>
+<% end %>
+<% end %>
+
+<% if @rule_files && !@rule_files.empty? %>
+rule_files:
+<% @rule_files.each do |filename| %>
+  - <%= filename %>
+<% end %>
+<% end %>