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在基于图像的 Python 中,我想使用 go package gnostic 运行一个命令 (*):

RUN gnostic --grpc-out=test test/openapi/loyalty-bff.yaml

我确实写了以下dockerfile:

FROM golang:1.17 AS golang
RUN go get -u github.com/google/gnostic@latest
RUN go get -u github.com/googleapis/gnostic-grpc@latest

FROM python:3.7.10
WORKDIR /app
ADD requirements.txt /app/
RUN pip install -r requirements.txt
ADD . /app/
COPY --from=golang /go/bin/gnostic /go/bin/gnostic-grpc
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "5000"]

运行命令 (*) 时出现错误:

Command 'gnostic --grpc-out=loyalty-bff-1634180849463365375 loyalty-bff-1634180849463365375/loyalty-bff.yaml' returned non-zero exit status 127.

另一方面,我可以在不使用多阶段时运行。替换为在基于镜像的 go 中安装 python,但是构建时间很长:

FROM golang:1.17
WORKDIR /app
RUN go get -u github.com/google/gnostic@latest
RUN go get -u github.com/googleapis/gnostic-grpc@latest
RUN apt-get update
RUN apt-get install -y build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libsqlite3-dev libreadline-dev libffi-dev wget libbz2-dev
RUN wget https://www.python.org/ftp/python/3.7.8/Python-3.7.8.tgz
RUN tar -xf Python-3.7.8.tgz
RUN cd Python-3.7.8 \
    && ./configure --enable-shared \
    && make && make install
RUN apt-get install python3-pip -y

ADD requirements.txt /app/
RUN pip3 install -r requirements.txt
ADD . /app/
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "5000"]
4

1 回答 1

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退出代码127通常意味着找不到可执行文件。

如果您查看 env of golang:1.17,默认情况下可以看到PATHhas /go/bin

$ docker run --rm -it golang:1.17 env
PATH=/go/bin:/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=a9b7efb588ea
TERM=xterm
GOLANG_VERSION=1.17.2
GOPATH=/go
HOME=/root

这就是您可以gnostic在基于 golang 的容器中找到的原因。

但是,在 中python:3.7.10,接下来是:

$ docker run --rm -it python:3.7.10 env
PATH=/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

因此,对于您的方案,将副本更改为下一个可以使其工作:

COPY --from=golang /go/bin/gnostic /go/bin/gnostic-grpc /usr/local/bin/
于 2021-10-14T03:50:44.343 回答