How to open the compiler in docker

Running the compiler in Docker is a challenging task. Because Docker containers, as lightweight virtualization tools, do not provide basic GUI (Graphical User Interface, graphical user interface) tools, the compiler needs to be properly configured to run successfully in Docker containers. This article will introduce how to open the compiler in Docker. We will introduce it from the following aspects:

1. Docker Overview
2. Basic Requirements of the Compiler
3. Installing and Running Docker Containers
4. In Installing and configuring the compiler in the Docker container
5. Common problems and solutions
6. Docker overview

Docker is an open source lightweight containerization technology . It provides an independent operating environment through virtualization technology. Docker packages an application and its required environment into a container. This container can run on any platform very efficiently.

Docker is a new field of virtualization technology. Its core idea is to use the Cgroup and namespace mechanisms of the Linux kernel to package an application's dependent environment and application into a container at the same time. Applications in containers can run on different platforms, maintaining application consistency. At the same time, Docker can also implement application deployment and expansion by building images.

2. Basic requirements for a compiler

A compiler is a software tool used to compile source code into an executable file. It needs to run on a suitable operating system and hardware platform, and needs to use some necessary library files and tools.

When configuring the compiler for Docker, you need to consider the following requirements:

1. Suitable operating system: The compiler needs to run on an operating system that supports the compiler. Commonly used operating systems include Ubuntu, CentOS, Debian, etc.
2. Appropriate library files: The compiler may need to use some specific library files. These library files need to be manually installed into the Docker container.
3. Suitable tools: The compiler may need to use some tools, such as make, cmake, etc. These tools need to be manually installed into the Docker container.
4. Install and run the Docker container

Before you start configuring the compiler, you need to install and run the Docker container. Here we take the Ubuntu system as an example. The specific installation and running commands are as follows:

1. Install Docker

sudo apt-get update
sudo apt-get install docker.io

2. Run Docker

sudo systemctl start docker

Through the above steps, we successfully installed and ran the Docker container. You can check whether the Docker container is running normally by using the following command:

sudo docker run hello-world

If "Hello from Docker!" can be output normally, the Docker container has run successfully.

4. Installing and configuring the compiler in the Docker container

When installing and configuring the compiler in the Docker container, you need to operate according to the requirements of the compiler. Here we take the gcc compiler as an example.

1. Install the gcc compiler

The command to install the gcc compiler in the Docker container is as follows:

sudo apt-get install gcc

2. Compile and run the program

In order to test whether the gcc compiler is successfully installed and configured in the Docker container, you can write a simple program for testing. For example, you can write a simple Hello World program with the following code:

#include<stdio.h>
int main()
{
    printf("Hello World!\n");
    return 0;
}

Save the above code to a file named hello.c. Then compile and run the program through the following command:

gcc -o hello hello.c
./hello

If "Hello World!" can be output normally, the gcc compiler has been successfully installed and configured into the Docker container.

5. Frequently Asked Questions and Solutions

When installing and configuring the compiler in a Docker container, you may encounter some problems. Here we answer some frequently asked questions.

Problem 1: The Docker container cannot access the external network

Solution: Use the following command to open the Docker container’s network access:

sudo docker run --net=host ......

Problem 2: The Docker container cannot be installed and running the compiler

Solution: Check that the appropriate operating system, libraries, and tools are installed. Alternatively, you can also try using the compiler image on Docker Hub.

Problem 3: The compiler version in the Docker container is too low

Solution: Install the latest version of the compiler through the following command:

sudo apt-get update
sudo apt-get install gcc

Install and compile on the local machine The server and then mounting it into a Docker container is also an option.

Summary

Configuring the compiler in a Docker container may encounter some challenges, but as long as you configure it appropriately according to the compiler requirements, you can successfully run the compiler in a Docker container. Finally, except for the gcc compiler, the installation and configuration methods of other compilers are basically the same. So, just follow the specific requirements.

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