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|
# frozen_string_literal: true
module Projects
module Prometheus
class AlertPresenter < Gitlab::View::Presenter::Delegated
RESERVED_ANNOTATIONS = %w(gitlab_incident_markdown gitlab_y_label title).freeze
GENERIC_ALERT_SUMMARY_ANNOTATIONS = %w(monitoring_tool service hosts).freeze
MARKDOWN_LINE_BREAK = " \n".freeze
INCIDENT_LABEL_NAME = IncidentManagement::CreateIncidentLabelService::LABEL_PROPERTIES[:title].freeze
METRIC_TIME_WINDOW = 30.minutes
def full_title
[environment_name, alert_title].compact.join(': ')
end
def project_full_path
project.full_path
end
def metric_query
gitlab_alert&.full_query
end
def environment_name
environment&.name
end
def performance_dashboard_link
if environment
metrics_project_environment_url(project, environment)
else
metrics_project_environments_url(project)
end
end
def show_performance_dashboard_link?
gitlab_alert.present?
end
def show_incident_issues_link?
project.incident_management_setting&.create_issue?
end
def incident_issues_link
project_issues_url(project, label_name: INCIDENT_LABEL_NAME)
end
def start_time
starts_at&.strftime('%d %B %Y, %-l:%M%p (%Z)')
end
def issue_summary_markdown
<<~MARKDOWN.chomp
#### Summary
#{metadata_list}
#{alert_details}#{metric_embed_for_alert}
MARKDOWN
end
def annotation_list
strong_memoize(:annotation_list) do
annotations
.reject { |annotation| annotation.label.in?(RESERVED_ANNOTATIONS | GENERIC_ALERT_SUMMARY_ANNOTATIONS) }
.map { |annotation| list_item(annotation.label, annotation.value) }
.join(MARKDOWN_LINE_BREAK)
end
end
def metric_embed_for_alert
url = embed_url_for_gitlab_alert || embed_url_for_self_managed_alert
"\n[](#{url})" if url
end
private
def alert_title
query_title || title
end
def query_title
return unless gitlab_alert
"#{gitlab_alert.title} #{gitlab_alert.computed_operator} #{gitlab_alert.threshold} for 5 minutes"
end
def metadata_list
metadata = []
metadata << list_item('Start time', start_time) if start_time
metadata << list_item('full_query', backtick(full_query)) if full_query
metadata << list_item(service.label.humanize, service.value) if service
metadata << list_item(monitoring_tool.label.humanize, monitoring_tool.value) if monitoring_tool
metadata << list_item(hosts.label.humanize, host_links) if hosts
metadata.join(MARKDOWN_LINE_BREAK)
end
def alert_details
if annotation_list.present?
<<~MARKDOWN.chomp
#### Alert Details
#{annotation_list}
MARKDOWN
end
end
def list_item(key, value)
"**#{key}:** #{value}".strip
end
def backtick(value)
"`#{value}`"
end
GENERIC_ALERT_SUMMARY_ANNOTATIONS.each do |annotation_name|
define_method(annotation_name) do
annotations.find { |a| a.label == annotation_name }
end
end
def host_links
Array(hosts.value).join(' ')
end
def embed_url_for_gitlab_alert
return unless gitlab_alert
metrics_dashboard_project_prometheus_alert_url(
project,
gitlab_alert.prometheus_metric_id,
environment_id: environment.id,
**alert_embed_window_params(embed_time)
)
end
def embed_url_for_self_managed_alert
return unless environment && full_query && title
metrics_dashboard_project_environment_url(
project,
environment,
embed_json: dashboard_for_self_managed_alert.to_json,
**alert_embed_window_params(embed_time)
)
end
def embed_time
starts_at || Time.current
end
def alert_embed_window_params(time)
{
start: format_embed_timestamp(time - METRIC_TIME_WINDOW),
end: format_embed_timestamp(time + METRIC_TIME_WINDOW)
}
end
def format_embed_timestamp(time)
time.utc.strftime('%FT%TZ')
end
def dashboard_for_self_managed_alert
{
panel_groups: [{
panels: [{
type: 'line-graph',
title: title,
y_label: y_label,
metrics: [{
query_range: full_query
}]
}]
}]
}
end
end
end
end
|
