1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
# frozen_string_literal: true
module Banzai
module Filter
# HTML filter that inserts a placeholder element for each
# reference to a grafana dashboard.
class InlineGrafanaMetricsFilter < Banzai::Filter::InlineEmbedsFilter
# Placeholder element for the frontend to use as an
# injection point for charts.
def create_element(params)
begin_loading_dashboard(params[:url])
super
end
# @return [Hash<Symbol, String>] with keys :grafana_url, :start, and :end
def embed_params(node)
query_params = Gitlab::Metrics::Dashboard::Url.parse_query(node['href'])
time_window = Grafana::TimeWindow.new(query_params[:from], query_params[:to])
url = url_with_window(node['href'], query_params, time_window.in_milliseconds)
{ grafana_url: url }.merge(time_window.formatted)
end
# Selects any links with an href contains the configured
# grafana domain for the project
def xpath_search
return unless grafana_url.present?
%(descendant-or-self::a[starts-with(@href, '#{grafana_url}')])
end
private
def project
context[:project]
end
def grafana_url
project&.grafana_integration&.grafana_url
end
def metrics_dashboard_url(params)
Gitlab::Routing.url_helpers.project_grafana_api_metrics_dashboard_url(
project,
embedded: true,
**params
)
end
# If the provided url is missing time window parameters,
# this inserts the default window into the url, allowing
# the embed service to correctly format prometheus
# queries during embed processing.
#
# @param url [String]
# @param query_params [Hash<Symbol, String>]
# @param time_window_params [Hash<Symbol, Integer>]
# @return [String]
def url_with_window(url, query_params, time_window_params)
uri = URI(url)
uri.query = time_window_params.merge(query_params).to_query
uri.to_s
end
# Fetches a dashboard and caches the result for the
# FE to fetch quickly while rendering charts
def begin_loading_dashboard(url)
::Gitlab::Metrics::Dashboard::Finder.find(
project,
embedded: true,
grafana_url: url
)
end
end
end
end
|
