Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications.

2. Remove any Docker files that are running in the system, using the following command:

$ sudo apt-get remove docker docker-engine docker.io

1. After entering the above command, you will need to enter the password of the root and press enter.

2. Check if the system is up-to-date using the following command:

1. Install Docker using the following command:

2. You’ll then get a prompt asking you to choose between y/n - choose y.

1. Install all the dependency packages using the following command:

1. Before testing Docker, check the version installed using the following command:

1. Pull an image from the Docker hub using the following command:

2. Here, hello-world is the docker image present on the Docker hub.

1. Check if the docker image has been pulled and is present in your system using the following command:

2. To display all the containers pulled, use the following command:

1. To check for containers in a running state, use the following command:

Now you’ve just successfully installed Docker on your Ubuntu system!

In this blog, I will explain how to install Docker on the Ubuntu operating system by using the ubuntu terminal & we also know what is Docker in brief.

How to install Docker on Ubuntu: A complete Docker installation guideline in 2023

Use Docker containers as build requirements in Conan:

Conan allows specifying build requirements as packages or as build_requires, which are packages used only during the build process. Build requires are specified in the conanfile.py file and are used to provide additional dependencies that are required only during the build process.

To use Docker containers as build requirements in Conan, you can define a build_requires() method in your conanfile.py file and use the ConanFile.run() method to execute a shell command that runs a Docker container. Here's an example:

        self.build_requires("docker/1.0.0")

        self.run("docker run --rm -v $PWD:/workdir my_docker_image /bin/bash -c 'cd /workdir && ./configure && make'")

In this example, the build_requirements() method specifies that the docker package is required as a build requirement. The build() method then uses the ConanFile.run() method to execute a shell command that runs a Docker container, passing the current working directory ($PWD) as a volume mount and running the configure and make commands inside the container.

Additionally, you can also define a custom Docker image that includes all the necessary build dependencies and tools required by your package's build process. To use this custom Docker image as a build requirement, you can create a Dockerfile that installs the required build dependencies and tools and builds a Docker image.

    apt-get install -y build-essential cmake git

This Dockerfile installs the build-essential, cmake, and git packages, which are commonly used build dependencies, and sets the working directory to /app.

To use this Docker image as a build requirement in Conan, you can modify the build() method in the conanfile.py file to run a container based on the custom Docker image:

        docker_image = "my_custom_docker_image:latest"

        self.run(f"docker run --rm -v $PWD:/workdir {docker_image} /bin/bash -c 'cd /workdir && ./configure && make'")

In this example, the build() method uses the docker_image variable to specify the name and tag of the custom Docker image. The ConanFile.run() method is used to execute a shell command that runs a Docker container based on the custom Docker image and performs the build process inside the container.

Using Docker containers as build requirements in Conan can help simplify the build process by providing a consistent build environment and isolating build dependencies from the host system. It can also help ensure reproducibility of builds across different systems and platforms.

Conan is a package manager that lets developers capture artifacts created during builds of applications and libraries, so let's see how to use docker containers as build-requires in Conan.

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