我正在开发一个托管在谷歌云上的Kubernetes上的应用程序,它使用Ingress来管理到每个服务的路由,然后在每个服务中使用golang进行一些额外的路由。
我的问题是:当我尝试向/api/auth/healthz
发送API请求时,我希望能够达到statusHandler()
功能,相反,我总是点击requestHandler()
函数,即使我有一个http.HandleFunc:http.HandleFunc("/healthz", statusHandler)
这是我的代码
func main() {
flag.Parse()
// initialize the "database"
err := store.Initialise()
if err != nil {
glog.Error(err)
glog.Error("Store failed to initialise")
}
defer store.Uninitialise()
// Initialize the default TTL for JWT access tokens to 1 day
tokenTTL = 24 * time.Hour
glog.Infof("JWT access tokens time-to-live set to: %s", tokenTTL.String())
http.HandleFunc("/healthz", statusHandler)
http.HandleFunc("/", requestHandler)
glog.Infof("Authentication service started on port 8080...\n")
http.ListenAndServe(":8080", nil)
}
func statusHandler(w http.ResponseWriter, r *http.Request) {
glog.Infof("Reached the status handler")
statusObj := serviceStatus{
GitSHA: os.Getenv("GIT_SHA"),
BuildTimestamp: os.Getenv("BUILD_TIMESTAMP"),
DeployEnv: os.Getenv("DEPLOY_ENV"),
}
statusJSON, _ := json.Marshal(statusObj)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "%s", statusJSON)
}
func requestHandler(w http.ResponseWriter, r *http.Request) {
glog.Infof("Reached the request handler")
...
}
这是我的Ingress代码:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
# https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/annotations.md
annotations:
kubernetes.io/ingress.class: nginx
certmanager.k8s.io/cluster-issuer: letsencrypt-staging
nginx.ingress.kubernetes.io/enable-cors: "false"
nginx.ingress.kubernetes.io/cors-enable-origin: "*"
nginx.ingress.kubernetes.io/auth-type: "basic"
nginx.ingress.kubernetes.io/auth-secret: "ci-ingress-auth"
nginx.ingress.kubernetes.io/proxy-body-size: "4g"
name: ci-api-ingress
namespace: ci
spec:
rules:
- host: ci.omitted.io
http:
paths:
- backend:
serviceName: auth-service << This is the service I am working on
servicePort: 8080
path: /api/auth
- backend:
serviceName: data-import-service
servicePort: 8080
path: /api/data-import
- backend:
serviceName: log-service
servicePort: 8080
path: /api/log
- backend:
serviceName: project-service
servicePort: 8080
path: /api/project
- backend:
serviceName: orchestration-service
servicePort: 8080
path: /api/orchestration
- backend:
serviceName: public
servicePort: 80
path: /
基于Kubernetes' documentation,它应该像他们所拥有的那样工作,有类似于我的实现:
http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
duration := time.Now().Sub(started)
if duration.Seconds() > 10 {
w.WriteHeader(500)
w.Write([]byte(fmt.Sprintf("error: %v", duration.Seconds())))
} else {
w.WriteHeader(200)
w.Write([]byte("ok"))
}
})
答案 0 :(得分:2)
根据您的入口规则,请求的路径应为:
/api/auth/healthz
不是/api/auth-service/healthz
入口路径/api/auth/
保存在传递给应用程序服务器的请求中。
将rewrite-target
添加到入口注释将确保将路径传递到您的基础服务器,因为您期望例如为/<path>
而不是/api/auth/<path>
。检查应用程序服务器日志应该表明情况就是这样。
ingress.kubernetes.io/rewrite-target: /