进入Dockerfile。我找不到包裹错误 [英] go get in Dockerfile. I got cannot find package error
问题描述
我添加了 RUN go get
在 docker-compose期间安装软件包。但是,当我运行 go build
时,发生以下找不到软件包
的错误。我发现这些软件包保存在 / go / pkg / linux_amd64 /
中。
I added RUN go get
to install packages during "docker-compose". However, the following cannot find package
error was occurred when I run go build
. I found that the packages are saved in /go/pkg/linux_amd64/
.
运行docker-撰写并进行构建
$ docker-compose up -d
$ docker exec -it explorer-cli /bin/bash
# pwd
/go
# ls
bin pkg src
# echo $GOPATH
/go
# ls /go/pkg/linux_amd64/github.com/
go-sql-driver
# go build -i -o /go/bin/explorer-cli src/main.go
src/main.go:6:2: cannot find package "github.com/go-sql-driver/mysql" in any of:
/usr/local/go/src/github.com/go-sql-driver/mysql (from $GOROOT)
/go/src/github.com/go-sql-driver/mysql (from $GOPATH)
(it worked if I run "go get" manually)
# go get github.com/go-sql-driver/mysql
# ls src/
github.com main.go
# go build -i -o /go/bin/explorer-cli src/main.go
docker-compose.yml
version: '3.4'
services:
mysql:
image: mysql:latest
container_name: database
volumes:
- ./docker/:/etc/mysql/conf.d
- ./docker/:/docker-entrypoint-initdb.d
environment:
- MYSQL_RANDOM_ROOT_PASSWORD=true
- MYSQL_DATABASE=explorer
- MYSQL_USER=admin
- MYSQL_PASSWORD=12dlql*41
app:
build: .
tty: true
image: explorer-cli:latest
container_name: explorer-cli
volumes:
- ./src:/go/src
external_links:
- database
Dockerfile
FROM golang:latest
RUN apt-get update
RUN apt-get upgrade -y
ENV GOBIN /go/bin
RUN go get github.com/go-sql-driver/mysql
main.go
package main
import (
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
func main() {
db, err := sql.Open("mysql", "admin:12dlql*41@(database:3306)/explorer")
if err != nil {
panic(err.Error())
}
defer db.Close()
}
更新1
Update 1
我注意到以下目录之间存在很大差异。
I noticed big differences between the following directories.
# ls /go/pkg/linux_amd64/github.com/go-sql-driver/
mysql.a
# ls /go/src/github.com/go-sql-driver/mysql/
AUTHORS connection_go18_test.go packets.go
CHANGELOG.md connection_test.go packets_test.go
CONTRIBUTING.md const.go result.go
LICENSE driver.go rows.go
README.md driver_go18_test.go statement.go
appengine.go driver_test.go statement_test.go
benchmark_go18_test.go dsn.go transaction.go
benchmark_test.go dsn_test.go utils.go
buffer.go errors.go utils_go17.go
collations.go errors_test.go utils_go18.go
connection.go fields.go utils_go18_test.go
connection_go18.go infile.go utils_test.go
更新2
Update 2
正如@aerokite所说,卷正在覆盖下载的软件包。我像以下内容一样进行了更改,并且可以正常工作。
As @aerokite said, the "volumes" was overwriting the downloaded packages. I changed like the followings and it worked.
Dockerfile
version: '3.4'
FROM golang:latest
RUN apt-get update
RUN apt-get upgrade -y
ENV GOBIN /go/bin
RUN go get github.com/go-sql-driver/mysql
RUN mkdir /go/src/explorer-cli
docker-compose
services:
mysql:
image: mysql:latest
container_name: database
volumes:
- ./docker/:/etc/mysql/conf.d
- ./docker/:/docker-entrypoint-initdb.d
environment:
- MYSQL_RANDOM_ROOT_PASSWORD=true
- MYSQL_DATABASE=explorer
- MYSQL_USER=admin
- MYSQL_PASSWORD=12dlql*41
app:
build: .
tty: true
image: explorer-cli:latest
container_name: explorer-cli
volumes:
- ./src/explorer-cli:/go/src/explorer-cli
external_links:
- database
开始构建
go build -i -o /go/bin/explorer-cli src/explorer-cli/main.go
推荐答案
我试图重新创建您的问题。
I have tried to recreate your problem.
FROM golang:latest
RUN apt-get update
RUN apt-get upgrade -y
ENV GOBIN /go/bin
RUN go get github.com/go-sql-driver/mysql
您已提供此Dockerfile。我已经构建了它
You have provided this Dockerfile. I have build it
$ docker build -t test .
现在我执行此图像以运行您的 go build
命令。
Now I exec into this image to run your go build
command.
$ docker run -it test bash
然后我在 / go / src中创建了
目录。 main.go
Then I have created main.go
, you provided, in /go/src
directory.
最后,我已经成功构建,没有任何错误
And finally, I have built successfully without any error
$ go build -i -o /go/bin/explorer-cli src/main.go
我想我已经找到您的问题了。我从未使用过 docker-compose
。但是您会明白的。
And I think I have found your problem. I have never used docker-compose
. But you will understand.
问题在这里:
app:
build: .
tty: true
image: explorer-cli:latest
container_name: explorer-cli
volumes:
- ./src:/go/src <-- problem is here
external_links:
- database
您正在安装 ./ src
到Docker中的 / go / src
目录中。此过程将用本地 ./ src
覆盖docker中的目录 / go / src
。这就是删除您从获得的数据,去获取github.com/go-sql-driver/mysql
You are mounting ./src
into /go/src
directory in your docker. This process is overwriting directory /go/src
in your docker with your local ./src
. And this is removing data you got from go get github.com/go-sql-driver/mysql
但是当您运行 go时,请获取github.com/go-sql-driver/mysql
,现在再次获取数据。
But when you are running go get github.com/go-sql-driver/mysql
, its now getting data again.
解决方案(01):
安装您的本地卷到其他地方。
Mount your local volume into somewhere else.
volumes:
- ./src:/tmp/src
并修改您的Dockerfile将此 main.go
移至 / go / src
And modify your Dockerfile to move this main.go
to /go/src
解决方案(02):
将 main.go
复制到您的Docker中。在Dockerfile中添加此行
Copy main.go
into your docker. Add this line in Dockerfile
COPY ./src/main.go /go/src
这篇关于进入Dockerfile。我找不到包裹错误的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!