在部署中，gcloud没有遇到供应商依赖性

Question

I created by the commands govendor init and govendor fetch "github.com/gorilla/mux" the vendor directory in the project.

However, when performing deploy in gcloud gcloud app deploy the following error occurs, github.com/gorilla/mux is not found:

ERROR: (gcloud.app.deploy) Error Response: [9] Deployment contains files that cannot be compiled: Compile failed: /work_dir/main.go:5:5: can't find import: "github.com/gorilla/mux"

What is missing to make deploy work? My plan is free in gcloud

app.yaml

service: api
runtime: go
api_version: go1

handlers:
- url: /sample
  script: _go_app

main.go

package main

import (
    "encoding/json"
    "github.com/gorilla/mux"
    "net/http"
    "google.golang.org/appengine"
)

type Foo struct {
    Text string `json:"text"`
}

func GetInfo(w http.ResponseWriter, r *http.Request) {
    json.NewEncoder(w).Encode(Foo{"hello"})
}

func init(){
    r := mux.NewRouter()
    r.HandleFunc("/sample", GetInfo)
}

func main() {
    appengine.Main()
}

Answer 1

If you want to use your vendored version of the mux package, then ensure that the SAMPLE-API files are in a Go workspace.

If vendoring is not required, then delete the vendor directory, run go get github.com/gorilla/mux and then deploy your app. In this case, your application files do not need to be in a workspace.

In addition to these build related issues, you must register the Gorilla mux with http.DefaultServeMux.

func init(){
    r := mux.NewRouter()
    r.HandleFunc("/sample", GetInfo)
    http.Handle("/", r)
}