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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: -1,
ha_proxy: -2,
aws_elb: -3,
nginx: -4,
kubernetes: -5,
# custom/user groups
business: 0,
response: 1,
system: 2
}
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) }
GROUP_TITLES = {
# built-in groups
nginx_ingress: _('Response metrics (NGINX Ingress)'),
ha_proxy: _('Response metrics (HA Proxy)'),
aws_elb: _('Response metrics (AWS ELB)'),
nginx: _('Response metrics (NGINX)'),
kubernetes: _('System metrics (Kubernetes)'),
# custom/user groups
business: _('Business metrics (Custom)'),
response: _('Response metrics (Custom)'),
system: _('System metrics (Custom)')
}.freeze
REQUIRED_METRICS = {
nginx_ingress: %w(nginx_upstream_responses_total nginx_upstream_response_msecs_avg),
ha_proxy: %w(haproxy_frontend_http_requests_total haproxy_frontend_http_responses_total),
aws_elb: %w(aws_elb_request_count_sum aws_elb_latency_average aws_elb_httpcode_backend_5_xx_sum),
nginx: %w(nginx_server_requests nginx_server_requestMsec),
kubernetes: %w(container_memory_usage_bytes container_cpu_usage_seconds_total)
}.freeze
def group_title
GROUP_TITLES[group.to_sym]
end
def required_metrics
REQUIRED_METRICS[group.to_sym].to_a.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
end
|
