C++ file with name first.cpp
#include<iostream>
using namespace std;
int main(){
cout << "Hello world..!!";
return 0;
}
Below is my dockerfile..
from debian:latest
LABEL:first
LABEL DESCRIPTION:Print Hello world on the screen
MAINTAINER saurav <sauravgore97@gmail.com>
COPY . /var/www/deb
WORKDIR /var/www/deb
RUN ./first
CMD ["./first"]
I tried with above dockerfile but I keep failing..gives me the error that
the directory "deb" does not exist
. In fact it is in the same directory as the dockerfile where I build.
答案 0 :(得分:2)
要使cpp文件运行,首先需要对其进行编译,为此我们需要一个编译器。由于g ++并未预装在debian:stretch上(这是我所使用的),因此需要首先安装它。
FROM debian:stretch
# Set the working directory
WORKDIR /tmp
# Install the compiler
RUN apt-get update && apt-get install g++ -y
# Copy the file containing the source code to WORKDIR/first.cpp
COPY first.cpp first.cpp
# Compile the program
RUN g++ first.cpp -o first
# Set the compiled program as the main command of the container
CMD ["./first"]
使用以下方法构建它:
docker build -f Dockerfile . -t=first-cpp
并使用以下命令运行它:
docker run -ti first-cpp
这将依次运行容器并仅打印出:
Hello world..!!