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# frozen_string_literal: true
module PrometheusHelpers
def prometheus_memory_query(environment_slug)
%{avg(container_memory_usage_bytes{container_name!="POD",environment="#{environment_slug}"}) / 2^20}
end
def prometheus_cpu_query(environment_slug)
%{avg(rate(container_cpu_usage_seconds_total{container_name!="POD",environment="#{environment_slug}"}[2m])) * 100}
end
def prometheus_istio_query(function_name, kube_namespace)
%{floor(sum(rate(istio_revision_request_count{destination_configuration=\"#{function_name}\", destination_namespace=\"#{kube_namespace}\"}[1m])*30))}
end
def prometheus_ping_url(prometheus_query)
query = { query: prometheus_query }.to_query
"https://prometheus.example.com/api/v1/query?#{query}"
end
def prometheus_query_url(prometheus_query)
query = { query: prometheus_query }.to_query
"https://prometheus.example.com/api/v1/query?#{query}"
end
def prometheus_query_with_time_url(prometheus_query, time)
query = { query: prometheus_query, time: time.to_f }.to_query
"https://prometheus.example.com/api/v1/query?#{query}"
end
def prometheus_query_range_url(prometheus_query, start: 8.hours.ago, stop: Time.now, step: nil)
start = start.to_f
stop = stop.to_f
step ||= Gitlab::PrometheusClient.compute_step(start, stop)
query = {
query: prometheus_query,
start: start,
end: stop,
step: step
}.to_query
"https://prometheus.example.com/api/v1/query_range?#{query}"
end
def prometheus_label_values_url(name)
"https://prometheus.example.com/api/v1/label/#{name}/values"
end
def prometheus_series_url(*matches, start: 8.hours.ago, stop: Time.now)
query = {
match: matches,
start: start.to_f,
end: stop.to_f
}.to_query
"https://prometheus.example.com/api/v1/series?#{query}"
end
def stub_prometheus_request(url, body: {}, status: 200, headers: {})
WebMock.stub_request(:get, url)
.to_return({
status: status,
headers: { 'Content-Type' => 'application/json' }.merge(headers),
body: body.to_json
})
end
def stub_prometheus_request_with_exception(url, exception_type)
WebMock.stub_request(:get, url).to_raise(exception_type)
end
def stub_any_prometheus_request
WebMock.stub_request(:any, /prometheus.example.com/)
end
def stub_any_prometheus_request_with_response(status: 200, headers: {}, body: nil)
stub_any_prometheus_request.to_return({
status: status,
headers: { 'Content-Type' => 'application/json' }.merge(headers),
body: body || prometheus_values_body.to_json
})
end
def stub_all_prometheus_requests(environment_slug, body: nil, status: 200)
stub_prometheus_request(
prometheus_query_with_time_url(prometheus_memory_query(environment_slug), Time.now.utc),
status: status,
body: body || prometheus_value_body
)
stub_prometheus_request(
prometheus_query_with_time_url(prometheus_memory_query(environment_slug), 8.hours.ago),
status: status,
body: body || prometheus_value_body
)
stub_prometheus_request(
prometheus_query_range_url(prometheus_memory_query(environment_slug)),
status: status,
body: body || prometheus_values_body
)
stub_prometheus_request(
prometheus_query_with_time_url(prometheus_cpu_query(environment_slug), Time.now.utc),
status: status,
body: body || prometheus_value_body
)
stub_prometheus_request(
prometheus_query_with_time_url(prometheus_cpu_query(environment_slug), 8.hours.ago),
status: status,
body: body || prometheus_value_body
)
stub_prometheus_request(
prometheus_query_range_url(prometheus_cpu_query(environment_slug)),
status: status,
body: body || prometheus_values_body
)
end
def prometheus_data(last_update: Time.now.utc)
{
success: true,
data: {
memory_values: prometheus_values_body('matrix').dig(:data, :result),
memory_current: prometheus_value_body('vector').dig(:data, :result),
cpu_values: prometheus_values_body('matrix').dig(:data, :result),
cpu_current: prometheus_value_body('vector').dig(:data, :result)
},
last_update: last_update
}
end
def prometheus_metrics_data(last_update: Time.now.utc)
{
success: true,
metrics: {
memory_values: prometheus_values_body('matrix').dig(:data, :result),
memory_current: prometheus_value_body('vector').dig(:data, :result),
cpu_values: prometheus_values_body('matrix').dig(:data, :result),
cpu_current: prometheus_value_body('vector').dig(:data, :result)
},
last_update: last_update
}
end
def prometheus_empty_body(type)
{
"status": "success",
"data": {
"resultType": type,
"result": []
}
}
end
def prometheus_value_body(type = 'vector')
{
"status": "success",
"data": {
"resultType": type,
"result": [
{
"metric": {},
"value": [
1488772511.004,
"0.000041021495238095323"
]
}
]
}
}
end
def prometheus_values_body(type = 'matrix')
{
"status": "success",
"data": {
"resultType": type,
"result": [
{
"metric": {},
"values": [
[1488758662.506, "0.00002996364761904785"],
[1488758722.506, "0.00003090239047619091"]
]
}
]
}
}
end
def prometheus_label_values
{
'status': 'success',
'data': %w(job_adds job_controller_rate_limiter_use job_depth job_queue_latency job_work_duration_sum up)
}
end
def prometheus_series(name)
{
'status': 'success',
'data': [
{
'__name__': name,
'container_name': 'gitlab',
'environment': 'mattermost',
'id': '/docker/9953982f95cf5010dfc59d7864564d5f188aaecddeda343699783009f89db667',
'image': 'gitlab/gitlab-ce:8.15.4-ce.1',
'instance': 'minikube',
'job': 'kubernetes-nodes',
'name': 'k8s_gitlab.e6611886_mattermost-4210310111-77z8r_gitlab_2298ae6b-da24-11e6-baee-8e7f67d0eb3a_43536cb6',
'namespace': 'gitlab',
'pod_name': 'mattermost-4210310111-77z8r'
},
{
'__name__': name,
'id': '/docker',
'instance': 'minikube',
'job': 'kubernetes-nodes'
}
]
}
end
end
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