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
|
# frozen_string_literal: true
module Clusters
module Applications
class Prometheus < ApplicationRecord
include PrometheusAdapter
VERSION = '9.5.2'
self.table_name = 'clusters_applications_prometheus'
include ::Clusters::Concerns::ApplicationCore
include ::Clusters::Concerns::ApplicationStatus
include ::Clusters::Concerns::ApplicationVersion
include ::Clusters::Concerns::ApplicationData
include AfterCommitQueue
default_value_for :version, VERSION
scope :preload_cluster_platform, -> { preload(cluster: [:platform_kubernetes]) }
scope :with_clusters_with_cilium, -> { joins(:cluster).merge(Clusters::Cluster.with_available_cilium) }
attr_encrypted :alert_manager_token,
mode: :per_attribute_iv,
key: Settings.attr_encrypted_db_key_base_truncated,
algorithm: 'aes-256-gcm'
after_destroy do
run_after_commit do
disable_prometheus_integration
end
end
state_machine :status do
after_transition any => [:installed] do |application|
application.run_after_commit do
Clusters::Applications::ActivateServiceWorker
.perform_async(application.cluster_id, ::PrometheusService.to_param) # rubocop:disable CodeReuse/ServiceClass
end
end
after_transition any => :updating do |application|
application.update(last_update_started_at: Time.current)
end
end
def updated_since?(timestamp)
last_update_started_at &&
last_update_started_at > timestamp &&
!update_errored?
end
def chart
'stable/prometheus'
end
def service_name
'prometheus-prometheus-server'
end
def service_port
80
end
def install_command
Gitlab::Kubernetes::Helm::InstallCommand.new(
name: name,
version: VERSION,
rbac: cluster.platform_kubernetes_rbac?,
chart: chart,
files: files,
postinstall: install_knative_metrics
)
end
def patch_command(values)
::Gitlab::Kubernetes::Helm::PatchCommand.new(
name: name,
version: version,
rbac: cluster.platform_kubernetes_rbac?,
chart: chart,
files: files_with_replaced_values(values)
)
end
def uninstall_command
Gitlab::Kubernetes::Helm::DeleteCommand.new(
name: name,
rbac: cluster.platform_kubernetes_rbac?,
files: files,
predelete: delete_knative_istio_metrics
)
end
# Returns a copy of files where the values of 'values.yaml'
# are replaced by the argument.
#
# See #values for the data format required
def files_with_replaced_values(replaced_values)
files.merge('values.yaml': replaced_values)
end
def prometheus_client
return unless kube_client
proxy_url = kube_client.proxy_url('service', service_name, service_port, Gitlab::Kubernetes::Helm::NAMESPACE)
# ensures headers containing auth data are appended to original k8s client options
options = kube_client.rest_client.options.merge(headers: kube_client.headers)
Gitlab::PrometheusClient.new(proxy_url, options)
rescue Kubeclient::HttpError, Errno::ECONNRESET, Errno::ECONNREFUSED, Errno::ENETUNREACH
# If users have mistakenly set parameters or removed the depended clusters,
# `proxy_url` could raise an exception because gitlab can not communicate with the cluster.
# Since `PrometheusAdapter#can_query?` is eargely loaded on environement pages in gitlab,
# we need to silence the exceptions
end
def configured?
kube_client.present? && available?
rescue Gitlab::UrlBlocker::BlockedUrlError
false
end
def generate_alert_manager_token!
unless alert_manager_token.present?
update!(alert_manager_token: generate_token)
end
end
private
def generate_token
SecureRandom.hex
end
def disable_prometheus_integration
::Clusters::Applications::DeactivateServiceWorker
.perform_async(cluster_id, ::PrometheusService.to_param) # rubocop:disable CodeReuse/ServiceClass
end
def kube_client
cluster&.kubeclient&.core_client
end
def install_knative_metrics
return [] unless cluster.application_knative_available?
[Gitlab::Kubernetes::KubectlCmd.apply_file(Clusters::Applications::Knative::METRICS_CONFIG)]
end
def delete_knative_istio_metrics
return [] unless cluster.application_knative_available?
[
Gitlab::Kubernetes::KubectlCmd.delete(
"-f", Clusters::Applications::Knative::METRICS_CONFIG,
"--ignore-not-found"
)
]
end
end
end
end
|
