Question

我正在基于以下目录结构： https://github.com/golang-standards/project-layout

我创建了一个非常简单的应用程序，基本上我想将其容器化。基本上我在那里有两个文件。 server.go是http端点的定义，而主文件则在cmd / webserver下启动名为main.go的服务器。

该项目的目录如下：

./
├── cmd
│   └── webserver
│       └── main.go
├── Dockerfile
├── go.mod
└── server.go

go.mod

module github.com/geborskimateusz/auth

go 1.15

一个Dockerfile看起来像这样

FROM golang:alpine

# Set necessary environmet variables needed for our image
ENV GO111MODULE=on \
    CGO_ENABLED=0 \
    GOOS=linux \
    GOARCH=amd64

# Move to working directory /build
WORKDIR /build

# Copy and download dependency using go mod
COPY go.mod .
RUN go mod download

# Copy the code into the container
COPY . .

# Build the application
RUN go build -o main .

# Move to /dist directory as the place for resulting binary folder
WORKDIR /dist

# Copy binary from build to main folder
RUN cp /build/main .

# Export necessary port
EXPOSE 3000

# Command to run when starting the container
CMD ["/dist/main"]:

构建成功，但是问题是我运行时 docker run -p 3000：3000 geborskimateusz / auth 我得到了：

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"/dist/main\": permission denied": unknown.
ERRO[0000] error waiting for container: context canceled

我想念什么？我假设也许我需要将Dockerfile中的CD光盘放入放置main.go（可执行文件）的cmd / webserver中。

Answer 1

我实际上是通过将DockerFile修改为

来解决此问题的

FROM golang:alpine

WORKDIR /app
COPY go.mod .
RUN go mod download
COPY . .

RUN cd ./cmd/webserver/ && go build -o main . && cp main ../../ && cd ../../

CMD ["./main"]

Dockerfile：来自守护程序的错误响应：OCI运行时创建失败：container_linux.go：349

1 个答案: