faas-rs/faas
1
0
Fork 0
mirror of https://github.com/openfaas/faas.git synced 2025-06-18 12:06:37 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add status code instrumentation for functions

Browse Source
This commit is contained in:
Alex
2017-03-13 22:57:05 +00:00
committed by Alex Ellis
parent 5802cd11dc
commit 38713184e5
3 changed files with 32 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
gateway/handlers/functionshandler.go
View File

@ -15,9 +15,24 @@ import (
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/client"
"github.com/prometheus/client_golang/prometheus"
io_prometheus_client "github.com/prometheus/client_model/go"
)
func getCounterValue(service string, code string, metricsOptions *metrics.MetricOptions) float64 {
metric, err := metricsOptions.GatewayFunctionInvocation.GetMetricWith(prometheus.Labels{"function_name": service, "code": code})
if err != nil {
return 0
}
// Get the metric's value from ProtoBuf interface (idea via Julius Volz)
var protoMetric io_prometheus_client.Metric
metric.Write(&protoMetric)
invocations := protoMetric.GetCounter().GetValue()
return invocations
}
// MakeFunctionReader gives a summary of Function structs with Docker service stats overlaid with Prometheus counters.
func MakeFunctionReader(metricsOptions metrics.MetricOptions, c *client.Client) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
@ -39,13 +54,8 @@ func MakeFunctionReader(metricsOptions metrics.MetricOptions, c *client.Client)
for _, service := range services {
if len(service.Spec.TaskTemplate.ContainerSpec.Labels["function"]) > 0 {
counter, _ := metricsOptions.GatewayFunctionInvocation.GetMetricWithLabelValues(service.Spec.Name)
// Get the metric's value from ProtoBuf interface (idea via Julius Volz)
var protoMetric io_prometheus_client.Metric
counter.Write(&protoMetric)
invocations := protoMetric.GetCounter().GetValue()
invocations := getCounterValue(service.Spec.Name, "200", &metricsOptions) +
getCounterValue(service.Spec.Name, "500", &metricsOptions)
f := requests.Function{
Name: service.Spec.Name,