Docker：无法解析主机：github.com - for go get ./

Question

运行我的Dockerfile时，我需要获取依赖项。这是使用go get ./...完成的。

然而，在执行docker build -t test .时，它会在go get命令处挂起。

这是错误消息

  

exec go get -v -d

     

github.com/gorilla/mux（下载）    cd .; git clone https://github.com/gorilla/mux /go/src/github.com/gorilla/mux克隆到   ＆＃39; /go/src/github.com/gorilla/mux' ...致命：无法访问   ＆＃39; https://github.com/gorilla/mux/＆＃39;：无法解析主机：github.com   包github.com/gorilla/mux：退出状态128

这里是dockerfile

FROM golang

# Create a directory inside the container to store all our application and then make it the working directory.
RUN mkdir -p /go/src/example-app
WORKDIR /go/src/example-app

# Copy the example-app directory (where the Dockerfile lives) into the container.
COPY . /go/src/example-app

# Download and install any required third party dependencies into the container.
RUN go-wrapper download
RUN go-wrapper install
RUN go get ./...

# Set the PORT environment variable inside the container
ENV PORT 8080

# Expose port 8080 to the host so we can access our application
EXPOSE 8080

# Now tell Docker what command to run when the container starts
CMD ["go-wrapper", "run"]

Answer 1

我假设你是通过另一台机器上的ssh做的。检查/etc/network/interfaces中是否有dns服务器。看起来应该是这样的：

iface eth0 inet static
    address 192.168.2.9
    gateway 192.168.2.1
    netmask 255.255.255.0
    broadcast 192.168.2.255
    dns-nameservers 192.168.2.1 8.8.4.4

始终＆＃34;的DNS服务器工作是8.8.8.8和8.8.4.4，均由Google提供。如果这不能解决您的问题，您应该检查您的互联网连接是否有其他错误配置，但首先尝试这个。