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|
# frozen_string_literal: true
class PrometheusMetric < ActiveRecord::Base
belongs_to :project, validate: true, inverse_of: :prometheus_metrics
enum group: {
# built-in groups
nginx_ingress_vts: -1,
ha_proxy: -2,
aws_elb: -3,
nginx: -4,
kubernetes: -5,
nginx_ingress: -6,
# custom/user groups
business: 0,
response: 1,
system: 2
}
GROUP_DETAILS = {
# built-in groups
nginx_ingress_vts: {
group_title: _('Response metrics (NGINX Ingress VTS)'),
required_metrics: %w(nginx_upstream_responses_total nginx_upstream_response_msecs_avg),
priority: 10
}.freeze,
nginx_ingress: {
group_title: _('Response metrics (NGINX Ingress)'),
required_metrics: %w(nginx_ingress_controller_requests nginx_ingress_controller_ingress_upstream_latency_seconds_sum),
priority: 10
}.freeze,
ha_proxy: {
group_title: _('Response metrics (HA Proxy)'),
required_metrics: %w(haproxy_frontend_http_requests_total haproxy_frontend_http_responses_total),
priority: 10
}.freeze,
aws_elb: {
group_title: _('Response metrics (AWS ELB)'),
required_metrics: %w(aws_elb_request_count_sum aws_elb_latency_average aws_elb_httpcode_backend_5_xx_sum),
priority: 10
}.freeze,
nginx: {
group_title: _('Response metrics (NGINX)'),
required_metrics: %w(nginx_server_requests nginx_server_requestMsec),
priority: 10
}.freeze,
kubernetes: {
group_title: _('System metrics (Kubernetes)'),
required_metrics: %w(container_memory_usage_bytes container_cpu_usage_seconds_total),
priority: 5
}.freeze,
# custom/user groups
business: {
group_title: _('Business metrics (Custom)'),
priority: 0
}.freeze,
response: {
group_title: _('Response metrics (Custom)'),
priority: -5
}.freeze,
system: {
group_title: _('System metrics (Custom)'),
priority: -10
}.freeze
}.freeze
validates :title, presence: true
validates :query, presence: true
validates :group, presence: true
validates :y_label, presence: true
validates :unit, presence: true
validates :project, presence: true, unless: :common?
validates :project, absence: true, if: :common?
scope :common, -> { where(common: true) }
def priority
group_details(group).fetch(:priority)
end
def group_title
group_details(group).fetch(:group_title)
end
def required_metrics
group_details(group).fetch(:required_metrics, []).map(&:to_s)
end
def to_query_metric
Gitlab::Prometheus::Metric.new(id: id, title: title, required_metrics: required_metrics, weight: 0, y_label: y_label, queries: queries)
end
def queries
[
{
query_range: query,
unit: unit,
label: legend,
series: query_series
}.compact
]
end
def query_series
case legend
when 'Status Code'
[{
label: 'status_code',
when: [
{ value: '2xx', color: 'green' },
{ value: '4xx', color: 'orange' },
{ value: '5xx', color: 'red' }
]
}]
end
end
private
def group_details(group)
GROUP_DETAILS.fetch(group.to_sym)
end
end
|
