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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
# frozen_string_literal: true
module Integrations
class Prometheus < BaseMonitoring
include PrometheusAdapter
# Access to prometheus is directly through the API
prop_accessor :api_url
prop_accessor :google_iap_service_account_json
prop_accessor :google_iap_audience_client_id
boolean_accessor :manual_configuration
# We need to allow the self-monitoring project to connect to the internal
# Prometheus instance.
# Since the internal Prometheus instance is usually a localhost URL, we need
# to allow localhost URLs when the following conditions are true:
# 1. project is the self-monitoring project.
# 2. api_url is the internal Prometheus URL.
with_options presence: true do
validates :api_url, public_url: true, if: ->(object) { object.manual_configuration? && !object.allow_local_api_url? }
validates :api_url, url: true, if: ->(object) { object.manual_configuration? && object.allow_local_api_url? }
end
before_save :synchronize_service_state
after_save :clear_reactive_cache!
after_commit :track_events
after_create_commit :create_default_alerts
scope :preload_project, -> { preload(:project) }
scope :with_clusters_with_cilium, -> { joins(project: [:clusters]).merge(Clusters::Cluster.with_available_cilium) }
def initialize_properties
if properties.nil?
self.properties = {}
end
end
def show_active_box?
false
end
def title
'Prometheus'
end
def description
s_('PrometheusService|Monitor application health with Prometheus metrics and dashboards')
end
def self.to_param
'prometheus'
end
def fields
[
{
type: 'checkbox',
name: 'manual_configuration',
title: s_('PrometheusService|Active'),
help: s_('PrometheusService|Select this checkbox to override the auto configuration settings with your own settings.'),
required: true
},
{
type: 'text',
name: 'api_url',
title: 'API URL',
placeholder: s_('PrometheusService|https://prometheus.example.com/'),
help: s_('PrometheusService|The Prometheus API base URL.'),
required: true
},
{
type: 'text',
name: 'google_iap_audience_client_id',
title: 'Google IAP Audience Client ID',
placeholder: s_('PrometheusService|IAP_CLIENT_ID.apps.googleusercontent.com'),
help: s_('PrometheusService|The ID of the IAP-secured resource.'),
autocomplete: 'off',
required: false
},
{
type: 'textarea',
name: 'google_iap_service_account_json',
title: 'Google IAP Service Account JSON',
placeholder: s_('PrometheusService|{ "type": "service_account", "project_id": ... }'),
help: s_('PrometheusService|The contents of the credentials.json file of your service account.'),
required: false
}
]
end
# Check we can connect to the Prometheus API
def test(*args)
prometheus_client.ping
{ success: true, result: 'Checked API endpoint' }
rescue Gitlab::PrometheusClient::Error => err
{ success: false, result: err }
end
def prometheus_client
return unless should_return_client?
options = prometheus_client_default_options.merge(
allow_local_requests: allow_local_api_url?
)
if behind_iap?
# Adds the Authorization header
options[:headers] = iap_client.apply({})
end
Gitlab::PrometheusClient.new(api_url, options)
end
def prometheus_available?
return false if template?
return false unless project
project.all_clusters.enabled.eager_load(:integration_prometheus).any? do |cluster|
cluster.integration_prometheus_available?
end
end
def allow_local_api_url?
allow_local_requests_from_web_hooks_and_services? ||
(self_monitoring_project? && internal_prometheus_url?)
end
def configured?
should_return_client?
end
private
delegate :allow_local_requests_from_web_hooks_and_services?, to: :current_settings, private: true
def self_monitoring_project?
project && project.id == current_settings.self_monitoring_project_id
end
def internal_prometheus_url?
api_url.present? && api_url == ::Gitlab::Prometheus::Internal.uri
end
def should_return_client?
api_url.present? && manual_configuration? && active? && valid?
end
def current_settings
Gitlab::CurrentSettings.current_application_settings
end
def synchronize_service_state
self.active = prometheus_available? || manual_configuration?
true
end
def track_events
if enabled_manual_prometheus?
Gitlab::Tracking.event('cluster:services:prometheus', 'enabled_manual_prometheus')
elsif disabled_manual_prometheus?
Gitlab::Tracking.event('cluster:services:prometheus', 'disabled_manual_prometheus')
end
true
end
def enabled_manual_prometheus?
manual_configuration_changed? && manual_configuration?
end
def disabled_manual_prometheus?
manual_configuration_changed? && !manual_configuration?
end
def create_default_alerts
return unless project_id
::Prometheus::CreateDefaultAlertsWorker.perform_async(project_id)
end
def behind_iap?
manual_configuration? && google_iap_audience_client_id.present? && google_iap_service_account_json.present?
end
def clean_google_iap_service_account
return unless google_iap_service_account_json
google_iap_service_account_json
.then { |json| Gitlab::Json.parse(json) }
.except('token_credential_uri')
end
def iap_client
@iap_client ||= Google::Auth::Credentials
.new(clean_google_iap_service_account, target_audience: google_iap_audience_client_id)
.client
end
end
end
|
