postgres.yaml.erb

init_config:
# empty by design

instances:
<% @instances.each do |i| -%>
  - host: <%= i["server"] %>
    port: <%= i["port"] || 5432 %>
    username: <%= i["username"] %>
    password: <%= i["password"] %>
    <% if i.key?("tags") -%>
    tags:
        <% i["tags"].each do |t| -%>
      - <%= t %>
      	<% end -%>
    <% end -%>
    <%- if i.key?('dbname') %>
    dbname: <%= i['dbname'] %>
    <% end -%>
    <%- if i.key?('ssl') %>
    ssl: <%= i['ssl'] %>
    <% end -%>
    <% if i.key?("relations") -%>
    relations:
        <% i["relations"].each do |r| -%>
      - <%= r %>
        <% end -%>
    <% end -%>
    <%- if i.key?("collect_function_metrics") %>
    collect_function_metrics: <%= i["collect_function_metrics"] %>
    <% end -%>
    <% if i.key?('custom_metrics') -%>
    custom_metrics:
      <% i["custom_metrics"].each do |cm| -%>
      - query: <%= cm["query"] %>
        metrics:
          <% cm["metrics"].each do |column, vals| -%>
          <%= column %>:
            <% Array(vals).each do |val| -%>
            - <%= val %>
            <% end -%>
          <% end -%>
        <% if cm.key?("descriptors") -%>
        descriptors:
          <% Array(cm["descriptors"]).each do |d| %>
          - <%= d %>
          <% end -%>
        <% end -%>
        <% if cm.key?("relation") -%>
        relation: <%= cm["relation"] %>
        <% end -%>
      <% end -%>
    <% end -%>
<% end -%>