我试图重现您的问题。
FROM golang:latestRUN apt-get updateRUN apt-get upgrade -yENV GOBIN /go/binRUN go get github.com/go-sql-driver/MysqL
您已提供此Dockerfile。我已经建好了
$ docker build -t test .
现在我执行此图像以运行您的go build命令。
$ docker run -it test bash
然后，我main.go在/go/src目录中创建了您提供的内容。
最后，我已经成功构建，没有任何错误
$ go build -i -o /go/bin/explorer-cli src/main.go
而且我想我已经找到您的问题了。我没用过docker-compose。但是你会明白的。
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
您安装./src到/go/src目录中的码头工人。这个过程是/go/src用您的本地覆盖docker中的目录./src。这正在删除您从中获得的数据goget github.com/go-sql-driver/MysqL
你理解吗？
但是，当您运行时go get github.com/go-sql-driver/MysqL，它现在又可以获取数据。
将本地卷挂载到其他地方。
volumes: - ./src:/tmp/src
并修改您的Dockerfile将其main.go移至/go/src
复制main.go到您的码头工人。在Dockerfile中添加这一行
copY ./src/main.go /go/src解决方法
我添加RUN go get了在“ docker-compose”期间安装软件包。但是，cannot findpackage当我运行时发生了以下错误go build。我发现程序包保存在中/go/pkg/linux_amd64/。
运行docker-compose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
Docker文件
FROM golang:latestRUN apt-get updateRUN apt-get upgrade -yENV GOBIN /go/binRUN go get github.com/go-sql-driver/mysql
main.go
package mainimport ( '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
我注意到以下目录之间的巨大差异。
# 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.goCHANGELOG.md connection_test.go packets_test.goCONTRIBUTING.md const.goresult.goLICENSE driver.go rows.goREADME.md driver_go18_test.go statement.goappengine.go driver_test.go statement_test.gobenchmark_go18_test.go dsn.go transaction.gobenchmark_test.go dsn_test.go utils.gobuffer.go errors.go utils_go17.gocollations.go errors_test.go utils_go18.goconnection.go fields.go utils_go18_test.goconnection_go18.go infile.go utils_test.go
更新2
正如@aerokite所说，“卷”正在覆盖下载的软件包。我像以下内容进行了更改，并且有效。
Docker文件
version: ’3.4’FROM golang:latestRUN apt-get updateRUN apt-get upgrade -yENV GOBIN /go/binRUN go get github.com/go-sql-driver/mysqlRUN mkdir /go/src/explorer-cli
码头工人组成
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
去建造
go build -i -o /go/bin/explorer-cli src/explorer-cli/main.go
