158 lines
3.6 KiB
Go
158 lines
3.6 KiB
Go
package actionsmetrics
|
|
|
|
/*
|
|
Copyright 2022 The actions-runner-controller authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
|
|
"sigs.k8s.io/controller-runtime/pkg/reconcile"
|
|
|
|
"github.com/go-logr/logr"
|
|
gogithub "github.com/google/go-github/v52/github"
|
|
ctrl "sigs.k8s.io/controller-runtime"
|
|
|
|
"github.com/actions/actions-runner-controller/github"
|
|
)
|
|
|
|
type EventHook func(interface{})
|
|
|
|
// WebhookServer is a HTTP server that handles workflow_job events sent from GitHub Actions
|
|
type WebhookServer struct {
|
|
Log logr.Logger
|
|
|
|
// SecretKeyBytes is the byte representation of the Webhook secret token
|
|
// the administrator is generated and specified in GitHub Web UI.
|
|
SecretKeyBytes []byte
|
|
|
|
// GitHub Client to discover runner groups assigned to a repository
|
|
GitHubClient *github.Client
|
|
|
|
// When HorizontalRunnerAutoscalerGitHubWebhook handles a request, each EventHook is sent the webhook event
|
|
EventHooks []EventHook
|
|
}
|
|
|
|
func (autoscaler *WebhookServer) Reconcile(_ context.Context, request reconcile.Request) (reconcile.Result, error) {
|
|
return ctrl.Result{}, nil
|
|
}
|
|
|
|
func (autoscaler *WebhookServer) Handle(w http.ResponseWriter, r *http.Request) {
|
|
var (
|
|
ok bool
|
|
|
|
err error
|
|
)
|
|
|
|
defer func() {
|
|
if !ok {
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
|
|
if err != nil {
|
|
msg := err.Error()
|
|
if written, err := w.Write([]byte(msg)); err != nil {
|
|
autoscaler.Log.V(1).Error(err, "failed writing http error response", "msg", msg, "written", written)
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
|
|
defer func() {
|
|
if r.Body != nil {
|
|
r.Body.Close()
|
|
}
|
|
}()
|
|
|
|
// respond ok to GET / e.g. for health check
|
|
if r.Method == http.MethodGet {
|
|
ok = true
|
|
fmt.Fprintln(w, "actions-metrics-server is running")
|
|
return
|
|
}
|
|
|
|
var payload []byte
|
|
|
|
if len(autoscaler.SecretKeyBytes) > 0 {
|
|
payload, err = gogithub.ValidatePayload(r, autoscaler.SecretKeyBytes)
|
|
if err != nil {
|
|
autoscaler.Log.Error(err, "error validating request body")
|
|
|
|
return
|
|
}
|
|
} else {
|
|
payload, err = io.ReadAll(r.Body)
|
|
if err != nil {
|
|
autoscaler.Log.Error(err, "error reading request body")
|
|
|
|
return
|
|
}
|
|
}
|
|
|
|
webhookType := gogithub.WebHookType(r)
|
|
event, err := gogithub.ParseWebHook(webhookType, payload)
|
|
if err != nil {
|
|
var s string
|
|
if payload != nil {
|
|
s = string(payload)
|
|
}
|
|
|
|
autoscaler.Log.Error(err, "could not parse webhook", "webhookType", webhookType, "payload", s)
|
|
|
|
return
|
|
}
|
|
|
|
log := autoscaler.Log.WithValues(
|
|
"event", webhookType,
|
|
"hookID", r.Header.Get("X-GitHub-Hook-ID"),
|
|
"delivery", r.Header.Get("X-GitHub-Delivery"),
|
|
)
|
|
|
|
switch event.(type) {
|
|
case *gogithub.PingEvent:
|
|
ok = true
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
msg := "pong"
|
|
|
|
if written, err := w.Write([]byte(msg)); err != nil {
|
|
log.Error(err, "failed writing http response", "msg", msg, "written", written)
|
|
}
|
|
|
|
log.Info("handled ping event")
|
|
|
|
return
|
|
}
|
|
|
|
for _, eventHook := range autoscaler.EventHooks {
|
|
eventHook(event)
|
|
}
|
|
|
|
ok = true
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
msg := "ok"
|
|
|
|
log.Info(msg)
|
|
|
|
if written, err := w.Write([]byte(msg)); err != nil {
|
|
log.Error(err, "failed writing http response", "msg", msg, "written", written)
|
|
}
|
|
}
|