gitlab-org--gitlab-foss/db/importers/common_metrics_importer.rb
rpereira2 8a51b21918 Change the schema of the common_metrics.yml
- Change it to the new dashboard syntax described here:
https://gitlab.com/gitlab-org/gitlab-ce/issues/60383.
2019-04-17 20:02:24 +08:00

105 lines
2.6 KiB
Ruby

# frozen_string_literal: true
module Importers
class PrometheusMetric < ActiveRecord::Base
enum group: {
# built-in groups
nginx_ingress_vts: -1,
ha_proxy: -2,
aws_elb: -3,
nginx: -4,
kubernetes: -5,
nginx_ingress: -6,
# custom groups
business: 0,
response: 1,
system: 2
}
scope :common, -> { where(common: true) }
GROUP_TITLES = {
business: _('Business metrics (Custom)'),
response: _('Response metrics (Custom)'),
system: _('System metrics (Custom)'),
nginx_ingress_vts: _('Response metrics (NGINX Ingress VTS)'),
nginx_ingress: _('Response metrics (NGINX Ingress)'),
ha_proxy: _('Response metrics (HA Proxy)'),
aws_elb: _('Response metrics (AWS ELB)'),
nginx: _('Response metrics (NGINX)'),
kubernetes: _('System metrics (Kubernetes)')
}.freeze
end
class CommonMetricsImporter
MissingQueryId = Class.new(StandardError)
attr_reader :content
def initialize(filename = 'common_metrics.yml')
@content = YAML.load_file(Rails.root.join('config', 'prometheus', filename))
end
def execute
PrometheusMetric.reset_column_information
process_content do |id, attributes|
find_or_build_metric!(id)
.update!(**attributes)
end
end
private
def process_content(&blk)
content['panel_groups'].map do |group|
process_group(group, &blk)
end
end
def process_group(group, &blk)
attributes = {
group: find_group_title_key(group['group'])
}
group['panels'].map do |panel|
process_panel(panel, attributes, &blk)
end
end
def process_panel(panel, attributes, &blk)
attributes = attributes.merge(
title: panel['title'],
y_label: panel['y_label'])
panel['metrics'].map do |metric_details|
process_metric_details(metric_details, attributes, &blk)
end
end
def process_metric_details(metric_details, attributes, &blk)
attributes = attributes.merge(
legend: metric_details['label'],
query: metric_details['query_range'],
unit: metric_details['unit'])
yield(metric_details['id'], attributes)
end
def find_or_build_metric!(id)
raise MissingQueryId unless id
PrometheusMetric.common.find_by(identifier: id) ||
PrometheusMetric.new(common: true, identifier: id)
end
def find_group_title_key(title)
PrometheusMetric.groups[find_group_title(title)]
end
def find_group_title(title)
PrometheusMetric::GROUP_TITLES.invert[title]
end
end
end