1. Apt Install Docker-ce
2. Apt Install Docker Client Only
3. Apt Install Docker-machine
4. Apt Install Docker Ubuntu 20.04
5. Apt Install Docker Vs Docker.io

# # This script is meant for quick & easy install via: # $ curl -fsSL -o get-docker.sh # $ sh get-docker.sh # # For test builds (ie. Release candidates): # $ curl -fsSL -o test-docker.sh # $ sh test-docker.sh # # NOTE: Make sure to verify the contents of the script # you downloaded matches the. Docker is a special tool that’s designed especially for easier creation, deployment, and running Linux apps using “containers”. Docker is a tool that’s meant to benefit the full set of modern IT and software development professionals including the newish field of DevOps. How to install and use Docker on Linux Mint is shown in this guide. Sudo apt update apt-cache search docker-ce sample output: docker-ce - Docker: the open-source application container engine Install docker-ce: For Ubuntu 16.04 you need to run sudo apt update. For Ubuntu 18.04 and higher, add-apt-repository will execute apt update automatically: sudo apt install docker-ce To check the available Ubuntu codenames. I’ve always been wondering how Docker works in this regards, and whether I should either make as many “RUN apt-get install” commands as possible, or if I should instead try to use as few RUN commands as possible, as these increases the number of layers (?). So for example: RUN apt-get update && apt-get install -y python-qt4 python-pyside python-pip python3-pip python3.

Docker Compose is a Python program that lets you easily deploy multiple containers on a server.

As you start exploring Docker, you'll learn that often to run a certain web-app, you'll need to run various services (like database, web-server etc) in different containers.

Deploying multiple containers is a lot easier with Docker Compose.

In this tutorial, you'll learn two ways of installing Docker Compose on Ubuntu:

• Installing Docker Compose from Ubuntu's repository: Easier method but may not have the latest version of docker compose
• Installing the latest Docker Compose using PIP: Gets you the newer docker compose version

Keep in mind that to use Docker Compose, you must have Docker installed on Ubuntu.

Install Docker Compose from Ubuntu's repository

This is the easiest and recommend method. Unless you need the latest Docker Compose version for some specific reasons, you can manage very well with the docker compose version provides by Ubuntu.

Docker Compose is available in the universe repository of Ubuntu 20.04 and 18.04 so make sure to enable it first:

You probably won't need it but no harm in updating the local cache:

Now you can install Docker Compose in Ubuntu using this command:

Apt Install Docker-ce

You can check that Docker Compose is installed successfully by checking its version:

It should show an output like this:

Install the latest Docker Compose on Ubuntu using PIP

PIP stands for 'PIP Installs Package'. It's a command-line based package manager for installing Python applications.

Since Docker Compose is basically a Python program, you can use PIP to install it.

But before you do that, you need to install PIP on Ubuntu first.

Enable the universe repository first.

Install PIP now:

Now that you have PIP installed use it to install Docker Compose for all users on your Linux system:

Check the Docker Compose version to ensure that it is installed successfully:

You can see that Docker Compose installed via PIP is more recent version.

I hope you were able to successfully install Docker Compose on Ubuntu with this tutorial. Questions and suggestions are welcome.

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Apt Install Docker Client Only

方法一、docker pull tomcat

查找 Docker Hub 上的 Tomcat 镜像:

Apt Install Docker-machine

可以通过 Sort by 查看其他版本的 tomcat，默认是最新版本 tomcat:latest。

此外，我们还可以用 docker search tomcat 命令来查看可用版本：

这里我们拉取官方的镜像：

等待下载完成后，我们就可以在本地镜像列表里查到 REPOSITORY 为 tomcat 的镜像。

方法二、通过 Dockerfile 构建

创建Dockerfile

首先，创建目录tomcat,用于存放后面的相关东西。

webapps 目录将映射为 tomcat 容器配置的应用程序目录。

logs 目录将映射为 tomcat 容器的日志目录。

conf 目录里的配置文件将映射为 tomcat 容器的配置文件。

进入创建的 tomcat 目录，创建 Dockerfile。

通过 Dockerfile 创建一个镜像，替换成你自己的名字：

创建完成后，我们可以在本地的镜像列表里查找到刚刚创建的镜像：

Apt Install Docker Ubuntu 20.04

使用 tomcat 镜像

运行容器

Apt Install Docker Vs Docker.io

命令说明：

-p 8080:8080：将主机的 8080 端口映射到容器的 8080 端口。

-v $PWD/test:/usr/local/tomcat/webapps/test：将主机中当前目录下的 test 挂载到容器的 /test。

查看容器启动情况

通过浏览器访问