cmd/site: prometheus support

This commit is contained in:
Cadey Ratio 2019-03-21 07:31:49 -07:00
parent e42e877909
commit 526d9de73c
3 changed files with 66 additions and 7 deletions

View File

@ -14,6 +14,9 @@ import (
"github.com/Xe/jsonfeed" "github.com/Xe/jsonfeed"
"github.com/gorilla/feeds" "github.com/gorilla/feeds"
"github.com/povilasv/prommod"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
blackfriday "github.com/russross/blackfriday" blackfriday "github.com/russross/blackfriday"
"github.com/tj/front" "github.com/tj/front"
"within.website/ln" "within.website/ln"
@ -21,11 +24,46 @@ import (
var port = os.Getenv("PORT") var port = os.Getenv("PORT")
var (
requestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "handler_requests_total",
Help: "Total number of request/responses by HTTP status code.",
}, []string{"handler", "code"})
requestDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "handler_request_duration",
Help: "Handler request duration.",
}, []string{"handler", "method"})
requestInFlight = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "handler_requests_in_flight",
Help: "Current number of requests being served.",
}, []string{"handler"})
)
func init() {
prometheus.Register(requestCounter)
prometheus.Register(requestDuration)
prometheus.Register(requestInFlight)
}
func middlewareMetrics(family string, next http.Handler) http.Handler {
return promhttp.InstrumentHandlerDuration(
requestDuration.MustCurryWith(prometheus.Labels{"handler": family}),
promhttp.InstrumentHandlerCounter(requestCounter.MustCurryWith(prometheus.Labels{"handler": family}),
promhttp.InstrumentHandlerInFlight(requestInFlight.With(prometheus.Labels{"handler": family}), next),
),
)
}
func main() { func main() {
if port == "" { if port == "" {
port = "29384" port = "29384"
} }
prometheus.Register(prommod.NewCollector("christine"))
s, err := Build() s, err := Build()
if err != nil { if err != nil {
ln.FatalErr(context.Background(), err, ln.Action("Build")) ln.FatalErr(context.Background(), err, ln.Action("Build"))
@ -173,13 +211,14 @@ func Build() (*Site, error) {
s.mux.HandleFunc("/.within/health", func(w http.ResponseWriter, r *http.Request) { s.mux.HandleFunc("/.within/health", func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "OK", http.StatusOK) http.Error(w, "OK", http.StatusOK)
}) })
s.mux.Handle("/resume", s.renderTemplatePage("resume.html", s.Resume)) s.mux.Handle("/metrics", promhttp.Handler())
s.mux.Handle("/blog", s.renderTemplatePage("blogindex.html", s.Posts)) s.mux.Handle("/resume", middlewareMetrics("resume", s.renderTemplatePage("resume.html", s.Resume)))
s.mux.Handle("/contact", s.renderTemplatePage("contact.html", nil)) s.mux.Handle("/blog", middlewareMetrics("blog", s.renderTemplatePage("blogindex.html", s.Posts)))
s.mux.HandleFunc("/blog.rss", s.createFeed) s.mux.Handle("/contact", middlewareMetrics("contact", s.renderTemplatePage("contact.html", nil)))
s.mux.HandleFunc("/blog.atom", s.createAtom) s.mux.Handle("/blog.rss", middlewareMetrics("blog.rss", http.HandlerFunc(s.createFeed)))
s.mux.HandleFunc("/blog.json", s.createJsonFeed) s.mux.Handle("/blog.atom", middlewareMetrics("blog.atom", http.HandlerFunc(s.createAtom)))
s.mux.HandleFunc("/blog/", s.showPost) s.mux.Handle("/blog.json", middlewareMetrics("blog.json", http.HandlerFunc(s.createJsonFeed)))
s.mux.Handle("/blog/", middlewareMetrics("blogpost", http.HandlerFunc(s.showPost)))
s.mux.Handle("/css/", http.FileServer(http.Dir("."))) s.mux.Handle("/css/", http.FileServer(http.Dir(".")))
s.mux.Handle("/static/", http.FileServer(http.Dir("."))) s.mux.Handle("/static/", http.FileServer(http.Dir(".")))
s.mux.HandleFunc("/sw.js", func(w http.ResponseWriter, r *http.Request) { s.mux.HandleFunc("/sw.js", func(w http.ResponseWriter, r *http.Request) {

2
go.mod
View File

@ -10,6 +10,8 @@ require (
github.com/kr/pretty v0.1.0 // indirect github.com/kr/pretty v0.1.0 // indirect
github.com/pkg/errors v0.8.1 // indirect github.com/pkg/errors v0.8.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/povilasv/prommod v0.0.11
github.com/prometheus/client_golang v0.9.2
github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52 github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52
github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95 // indirect github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95 // indirect
github.com/st3fan/jsonfeed v0.0.0-20170519104842-498b2850d26b // indirect github.com/st3fan/jsonfeed v0.0.0-20170519104842-498b2850d26b // indirect

18
go.sum
View File

@ -2,8 +2,12 @@ github.com/Xe/gopreload v0.0.0-20170326043426-a00a8beb369c h1:lqTJqaoonxgJMvvfl1
github.com/Xe/gopreload v0.0.0-20170326043426-a00a8beb369c/go.mod h1:0aSWHJguPNHo6zlU7A4Ktua1A/VUr5Jdr1QZ2amOkAQ= github.com/Xe/gopreload v0.0.0-20170326043426-a00a8beb369c/go.mod h1:0aSWHJguPNHo6zlU7A4Ktua1A/VUr5Jdr1QZ2amOkAQ=
github.com/Xe/jsonfeed v0.0.0-20170520170432-e21591505612 h1:5cPld6YTMozzm3lK9VCnOErgoFbADM2hZc4KDu0YNKs= github.com/Xe/jsonfeed v0.0.0-20170520170432-e21591505612 h1:5cPld6YTMozzm3lK9VCnOErgoFbADM2hZc4KDu0YNKs=
github.com/Xe/jsonfeed v0.0.0-20170520170432-e21591505612/go.mod h1:UKXAbYA/G9yE+cPbpfiP7FlT6Kr3N2mbEjQEJ9hT004= github.com/Xe/jsonfeed v0.0.0-20170520170432-e21591505612/go.mod h1:UKXAbYA/G9yE+cPbpfiP7FlT6Kr3N2mbEjQEJ9hT004=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/google/gops v0.3.2 h1:n9jMkrye8dh3WQ0IxG5dzLRIhQeZDZoGaj0D7T7x7hQ= github.com/google/gops v0.3.2 h1:n9jMkrye8dh3WQ0IxG5dzLRIhQeZDZoGaj0D7T7x7hQ=
github.com/google/gops v0.3.2/go.mod h1:pMQgrscwEK/aUSW1IFSaBPbJX82FPHWaSoJw1axQfD0= github.com/google/gops v0.3.2/go.mod h1:pMQgrscwEK/aUSW1IFSaBPbJX82FPHWaSoJw1axQfD0=
github.com/gorilla/feeds v1.0.0 h1:EbkEvaYf+PXhYNHS20heBG7Rl2X6Zy8l11ZBWAHkWqE= github.com/gorilla/feeds v1.0.0 h1:EbkEvaYf+PXhYNHS20heBG7Rl2X6Zy8l11ZBWAHkWqE=
@ -15,12 +19,24 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw= github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I= github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/povilasv/prommod v0.0.11 h1:uiCU9z2UpNoMFyd5h3evJB8mTBuT9lZU3CYpMZkkyE0=
github.com/povilasv/prommod v0.0.11/go.mod h1:kMc6cpm22gp7m0cPEFRoRgIzXq75ZIJvNY6GbNu9EJk=
github.com/prometheus/client_golang v0.9.2 h1:awm861/B8OKDd2I/6o1dy3ra4BamzKhYOiGItCeZ740=
github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 h1:idejC8f05m9MGOsuEi1ATq9shN03HrxNkD/luQvxCv8=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275 h1:PnBWHBf+6L0jOqq0gIVUe6Yk0/QMZ640k6NvkxcBf+8=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a h1:9a8MnZMP0X2nLJdBg+pBmGgkJlSaKC2KaQmTCk1XDtE=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52 h1:xZ0R4UuR0EDx7m0OmvsqZaomfqCeYJ/PyLm94WLhnIM= github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52 h1:xZ0R4UuR0EDx7m0OmvsqZaomfqCeYJ/PyLm94WLhnIM=
github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g= github.com/russross/blackfriday v0.0.0-20170806171014-cadec560ec52/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95 h1:/vdW8Cb7EXrkqWGufVMES1OH2sU9gKVb2n9/1y5NMBY= github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95 h1:/vdW8Cb7EXrkqWGufVMES1OH2sU9gKVb2n9/1y5NMBY=
@ -32,7 +48,9 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
github.com/tj/front v0.0.0-20170212063142-739be213b0a1 h1:lA+aPRvltlx2fwv/BnxyYSDQo3pIeqzHgMO5GvK0T9E= github.com/tj/front v0.0.0-20170212063142-739be213b0a1 h1:lA+aPRvltlx2fwv/BnxyYSDQo3pIeqzHgMO5GvK0T9E=
github.com/tj/front v0.0.0-20170212063142-739be213b0a1/go.mod h1:deJrtusCTptAW4EUn5vBLpl3dhNqPqUwEjWJz5UNxpQ= github.com/tj/front v0.0.0-20170212063142-739be213b0a1/go.mod h1:deJrtusCTptAW4EUn5vBLpl3dhNqPqUwEjWJz5UNxpQ=
golang.org/x/net v0.0.0-20180811021610-c39426892332/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180811021610-c39426892332/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 h1:POO/ycCATvegFmVuPpQzZFJ+pGZeX22Ufu6fibxDVjU= gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 h1:POO/ycCATvegFmVuPpQzZFJ+pGZeX22Ufu6fibxDVjU=