Automating Grafana and adding consistency - test.cr

test.cr

require "crafana"

data_sources = ["Prometheus AWS", "Prometheus GCP"]

builder = Crafana::Builder.new
dashboard_name = "ElasticSearch Cluster Health Status - DEMO"

builder.add_dashboard(dashboard_name) do |dash|
  # Add some tags to the dashboard
  dash.tags = ["prometheus", "elasticsearch", "automated"]

  # Set the time range
  dash.time = Crafana::Time.new("now-12h", "now")

  # Loop through each data source,
  # making a row and a graph for each
  data_sources.each_with_index do |data_source, i|
    # add a row for the data source
    row_title = "#{data_source} - ES"
    dash.add_row(row_title) do |row|
      # Add the overall health bar
      row.add_single_stat(datasource: data_source) do |panel|
        expr = "max(max(elasticsearch_cluster_health_status{color=\"green\"} or up * 0) by (cluster) + max(elasticsearch_cluster_health_status{color=\"yellow\"} * 2 or up * 0) by (cluster) + max(elasticsearch_cluster_health_status{color=\"red\"} * 3 or up * 0) by (cluster) )"

        # Set the target
        panel.add_target(expr: expr, target_format: "time_series", ref_id: "A") do |target|
          target.instant = true
          target.interval_factor = 1
        end

        panel.color_background = true
        panel.gauge = Crafana::Gauge.new(100, 0)

        panel.max_data_points = 100
        panel.thresholds = "2,2.9"
        panel.value_name = "current"

        # Configure position and size
        panel.grid_pos = Crafana::GridPos.new(1, 24, 0, 0)

        panel.editable = false
        panel.value_font_size = Crafana::Percent.new(50)
        panel.value_maps = [
          Crafana::ValueMap.new("=", "N/A", "null"),
          Crafana::ValueMap.new("=", "GREEN", "1"),
          Crafana::ValueMap.new("=", "YELLOW", "2"),
          Crafana::ValueMap.new("=", "RED", "3"),
        ]
      end
    end
  end
end

# Print the dashboard JSON
puts builder.dashboards.first.to_json