How to install python3 with docker centos

Introduction

This article uses Amazon Linux 2 on AWS to do the following:

  1. Install docker
  2. Start centos which is docker image
  3. Install python3 in the container started in 2.

1. Install docker

First, update yum as follows.

[[email protected] ~]$ sudo yum update -y

Then install docker.

[[email protected] ~]$ sudo amazon-linux-extras install docker -y

After the installation is complete, start the docker daemon.

[[email protected] ~]$ sudo service docker start

Add ec2-user to the docker group. This is not required, but you can now use the `docker``` command without `sudo```.

[[email protected] ~]$ sudo usermod -a -G docker ec2-user

After executing the above command, close the terminal once. Then reconnect.

2. Start centos

First, start the container with the `run``` command. If the image has not been pulled, you can pull it before launching. The option `-it``` allows you to enter inside the launched container. (... is written by omitting the displayed message)

[[email protected] ~]$ docker run -it centos
・
・
・
[[email protected] /]#

3. Install python3 in the container

[[email protected] ~]$ yum install python3 -y

By entering the python3 command as shown below, you can enter interactive mode and know that it has been installed.

[[email protected] /]# python3
Python 3.6.8 (default, Apr 16 2020, 01:36:27)
[GCC 8.3.1 20191121 (Red Hat 8.3.1-5)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

After installation, you can use the pip3 command to install the required packages. I'm installing version 1 of aws-cli with the following command:

[[email protected] /]# pip3 install awscli

Reference article

--AWS official website https://docs.aws.amazon.com/ja_jp/AmazonECS/latest/developerguide/docker-basics.html --Install pip and awscli on CentOS7 https://rriifftt.hatenablog.com/entry/2015/10/28/142043

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