main.go:11:8:包aerospike_shared不在GOROOT (/usr/local/go/src/aerospike_aerospike_shared)

Question

根据Docker和golang的文档，我一整天都在寻找发生在这里的事情，而且看起来应该没有问题。

首先错误：

holms@debian ~/D/c/s/app-prebid-config> compose -f compose.yml build app-prebid-config
Building app-prebid-config
Step 1/11 : FROM golang:1.14-alpine as dev
 ---> 51e47ee4db58
Step 2/11 : RUN apk update && apk upgrade && apk add --no-cache bash git
 ---> Using cache
 ---> 8ddb9b995df8
Step 3/11 : RUN mkdir -p /app/prebid-config
 ---> Using cache
 ---> 4c1e8f03b27c
Step 4/11 : WORKDIR /app/prebid-config
 ---> Using cache
 ---> 25104c791d7e
Step 5/11 : RUN go mod init setupad.com/prebid-config
 ---> Using cache
 ---> 0b64b735c1f1
Step 6/11 : RUN go mod download
 ---> Using cache
 ---> 7170aa6447c9
Step 7/11 : RUN go mod vendor
 ---> Using cache
 ---> 0bbc220e43b9
Step 8/11 : COPY . .
 ---> Using cache
 ---> 9d5ab625ccd0
Step 9/11 : RUN go get -d -v ./...
 ---> Using cache
 ---> d4057dd0d9a7
Step 10/11 : RUN go install -v ./...
 ---> Running in c5b7a8cbc33e
main.go:11:8: package aerospike_shared is not in GOROOT (/usr/local/go/src/aerospike_shared)
ERROR: Service 'app-prebid-config' failed to build: The command '/bin/sh -c go install -v ./...' returned a non-zero code: 1

文档：

holms@debian ~/D/c/s/a/app> cat Dockerfile 
FROM golang:1.14-alpine as dev

ENV GO111MODULE=auto
ENV CGO_ENABLED=0
ENV GOOS=linux

RUN apk update && apk upgrade && apk add --no-cache bash git

RUN mkdir -p /app/prebid-config
WORKDIR /app/prebid-config

COPY go.mod  .
RUN go mod download
COPY . .
RUN go get -d -v ./...
RUN go install -v ./...
RUN go build -a -installsuffix cgo -o app .

FROM alpine:latest as prod
RUN apk --no-cache add ca-certificates
COPY --from=dev /app/app /app
EXPOSE 8080
CMD ["/app"]

代码it self:

holms@debian ~/D/c/s/a/app> tree
.
├── aerospike_shared
│   └── client.go
├── Dockerfile
└── main.go

1 directory, 3 files

main.go

holms@debian ~/D/c/s/a/app> cat main.go
package main

import (
        "net/http"

        "github.com/labstack/echo/v4"
        "github.com/labstack/echo/v4/middleware"
        "github.com/labstack/gommon/log"
)

import "aerospike_shared"

func main() {

        // Echo instance
        e := echo.New()
        e.Logger.SetLevel(log.ERROR)
        e.Use(middleware.Logger())

        e.GET("/", func(c echo.Context) error {
                return c.String(http.StatusOK, "Hello, World!")
        })

        // Connect to Aerospike
        a = aerospike_shared.client

        // Start server
        e.Logger.Fatal(e.Start(":1323"))
}

aerospike_shared/client.go

holms@debian ~/D/c/s/a/app> cat aerospike_shared/client.go
package aerospike_shared

import (
        "bytes"
        "fmt"
        "log"
        "math"
        "os"
        "runtime"
        "strconv"

        as "github.com/aerospike/aerospike-client-go"
)

var WritePolicy = as.NewWritePolicy(0, 0)
var Policy = as.NewPolicy()

var Host = os.Getenv("AEROSPIKE_HOST")
var Port, PortErr = strconv.Atoi(os.Getenv("AEROSPIKE_PORT"))

var Namespace = "prebid"
var Set = "prebid_configs"

var client *as.Client

func main() {
        // use all cpus in the system for concurrency
        runtime.GOMAXPROCS(runtime.NumCPU())

        log.SetOutput(os.Stdout)

        var err error
        client, err = as.NewClient(Host, Port)
        if err != nil {
                PanicOnError(err)
        }
}

func PanicOnError(err error) {
        if err != nil {
                log.Fatalln(err.Error())
        }
}

Answer 1

我读过官方文档和5篇博客文章，却找不到如何使用相关模块。

所以错误是我没有使用完整的路径。但我在任何地方都找不到一条完整的道路。Golang文档--一堆带有远程url的导入--我甚至不会远程存储这些代码。

要使相对路径正常工作，需要使用项目名称作为完整路径。所以，只需执行go mod init mypackage，然后在代码中使用import "mypackage/aerospike_shared，它就能工作了。