英文:
Can't build any golang docker images successfully, permission denied
问题
我一直在尝试为我的应用程序构建一个 Golang Docker 镜像，但是我无法构建任何一个镜像：
我尝试了这两个 Dockerfile：
FROM golang:1.20
WORKDIR /app
COPY go.mod ./
COPY go.sum ./
RUN go mod download
COPY . ./
RUN go build -o ./app
EXPOSE 8080
CMD ["./app"]
和
FROM golang:1.20-alpine as builder
COPY . /app
WORKDIR /app
RUN CGO_ENABLED=0 go build -o out
FROM alpine:latest
# 从构建镜像中复制编译好的二进制文件
COPY --from=builder /app/out ./out
# 启动程序
CMD ["./out"]
错误信息（二进制文件名不同，但是错误相同）：
Error response from daemon: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "./out": permission denied: unknown
我尝试设置输出文件的执行权限位，但仍然无法工作。我以前能够使用完全相同的 Dockerfile，但现在它们似乎不想工作了。
非常感谢任何帮助！我尝试过更改构建二进制文件的所有者，但没有成功。我尝试了不同的 Dockerfile，但也没有成功。
3天前还能正常工作，现在却不行了。我还尝试了 docker system prune --all，但没有成功。我查找了其他的 Stack Overflow 回答，但没有起作用。
英文:
I have been trying to build a golang docker image for my application, but I can't get any of the images to build:
I have tried theese two Dockerfiles:
FROM golang:1.20
WORKDIR /app
COPY go.mod ./
COPY go.sum ./
RUN go mod download
COPY . ./
RUN go build -o ./app
EXPOSE 8080
CMD [ "./app" ]
and
FROM golang:1.20-alpine as builder
COPY . /app
WORKDIR /app
RUN CGO_ENABLED=0 go build -o out
FROM alpine:latest
# Copy the compiled binary from the builder image
COPY --from=builder /app/out ./out
# Start the program
CMD ["./out"]
The Error (different binary name, but the same error):
Error response from daemon: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "./out": permission denied: unknown
I have tried setting the exec bit on the outputted files, but it still won't work. I have been able to use the exact same dockerfiles before, but now they seem to not want to work.
Any help is appreciated, thanks
I have tried chowning the build binary, but it didnt work.
I have tried different dockerifles, but it didnt work.
Worked fine 3 days ago, doesn't want to work now.
Also tried docker system prune --all, no luck
I have looked for other SO answers, nothing worked.
答案1
得分: 1
这是由于我将项目的根文件夹构建在容器内，而不是位于主文件所在的/cmd文件夹中引起的。请确保在容器中对输出的文件进行chmod +x操作，并确保构建正确的文件。
/捂脸
英文:
This was caused by me building the root folder of the project inside the container, not the /cmd folder, where the main file was located. Make sure to chmod +x the outputted file in the container, and make sure to build the correct files.
/facepalm
答案2
得分: 0
我使用提供的示例编写了两种不同的构建 Docker 镜像的方法。
第一种方法的 Dockerfile 如下：
FROM golang:1.20-alpine as builder
WORKDIR /app
ENV GOPROXY=https://goproxy.cn
COPY ./go.mod ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o server
EXPOSE 8080
CMD ["/app/server"]
第二种方法的 Dockerfile 如下：
FROM golang:1.20-alpine as builder
WORKDIR /app
ENV GOPROXY=https://goproxy.cn
COPY ./go.mod ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o server
FROM scratch
COPY --from=builder /app/server /opt/app/
EXPOSE 8080
CMD ["/opt/app/server"]
你也可以查看我的 GitHub。
英文:
I used the provided examples to write two different ways of building Docker images.
FROM golang:1.20-alpine as builder
WORKDIR /app
ENV GOPROXY=https://goproxy.cn
COPY ./go.mod ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o server
EXPOSE 8080
CMD ["/app/server"]
AND
FROM golang:1.20-alpine as builder
WORKDIR /app
ENV GOPROXY=https://goproxy.cn
COPY ./go.mod ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o server
FROM scratch
COPY --from=builder /app/server /opt/app/
EXPOSE 8080
CMD ["/opt/app/server"]
You can also check out my github.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论