mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-12-28 11:20:30 +00:00
96 lines
2.5 KiB
Go
96 lines
2.5 KiB
Go
// Copyright 2018 Drone.IO Inc.
|
|
//
|
|
// 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.
|
|
|
|
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"github.com/rs/zerolog/log"
|
|
"github.com/urfave/cli/v2"
|
|
|
|
"go.woodpecker-ci.org/woodpecker/agent"
|
|
"go.woodpecker-ci.org/woodpecker/version"
|
|
)
|
|
|
|
// the file implements some basic healthcheck logic based on the
|
|
// following specification:
|
|
// https://github.com/mozilla-services/Dockerflow
|
|
|
|
func init() {
|
|
http.HandleFunc("/varz", handleStats)
|
|
http.HandleFunc("/healthz", handleHeartbeat)
|
|
http.HandleFunc("/version", handleVersion)
|
|
}
|
|
|
|
func handleHeartbeat(w http.ResponseWriter, _ *http.Request) {
|
|
if counter.Healthy() {
|
|
w.WriteHeader(200)
|
|
} else {
|
|
w.WriteHeader(500)
|
|
}
|
|
}
|
|
|
|
func handleVersion(w http.ResponseWriter, _ *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Add("Content-Type", "text/json")
|
|
_ = json.NewEncoder(w).Encode(versionResp{
|
|
Source: "https://github.com/woodpecker-ci/woodpecker",
|
|
Version: version.String(),
|
|
})
|
|
}
|
|
|
|
func handleStats(w http.ResponseWriter, _ *http.Request) {
|
|
if counter.Healthy() {
|
|
w.WriteHeader(200)
|
|
} else {
|
|
w.WriteHeader(500)
|
|
}
|
|
w.Header().Add("Content-Type", "text/json")
|
|
if _, err := counter.WriteTo(w); err != nil {
|
|
log.Error().Err(err).Msg("handleStats")
|
|
}
|
|
}
|
|
|
|
type versionResp struct {
|
|
Version string `json:"version"`
|
|
Source string `json:"source"`
|
|
}
|
|
|
|
// default statistics counter
|
|
var counter = &agent.State{
|
|
Metadata: map[string]agent.Info{},
|
|
}
|
|
|
|
// handles pinging the endpoint and returns an error if the
|
|
// agent is in an unhealthy state.
|
|
func pinger(c *cli.Context) error {
|
|
healthcheckAddress := c.String("healthcheck-addr")
|
|
if strings.HasPrefix(healthcheckAddress, ":") {
|
|
// this seems sufficient according to https://pkg.go.dev/net#Dial
|
|
healthcheckAddress = "localhost" + healthcheckAddress
|
|
}
|
|
resp, err := http.Get("http://" + healthcheckAddress + "/healthz")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer resp.Body.Close()
|
|
if resp.StatusCode != 200 {
|
|
return fmt.Errorf("agent returned non-200 status code")
|
|
}
|
|
return nil
|
|
}
|