How to install AWS CLI in CentOS (Linux) and setup programming environment

Introduction

AWS Command Line Interface(CLI) is a unified tool to manage your AWS Services. With the Help of this tool you can manage , configure and control multiple services.

AWS CLI Version 

Currently two version of AWS CLI - 

AWS CLI Version 1 -  It's Older version , have less feature than version 2.

AWS CLI Version 2 -  It's Latest version and supported all latest feature of AWS.

Step by Step Installing AWS CLI at Linux 

Installing AWS CLI Version 1 

Step 1 : First we update current system, to ensure all packages have latest version.

$ sudo yum -y update

Step 2 : You can install AWS CLI and its dependency by using pip. Check pip and python installation status.
If python3 is installed then it is recommended that use pip3 also. 

Check python installation status

$ python --version

or

$ python3 --version

Check pip installation status

$ pip --version

or

$ pip3 --version

If PIP already installed then ignore Step 3

Step 3 : Install pip - If you have don't have python or python3 on your Linux box then follow this step by step guide. Now download pip script provided by python packaging authority.  

• Download pip script by using curl with -O option.

$ curl -O https://bootstrap.pypa.io/get-pip.py

• For python

$ python get-pip.py --user

• For python3

$ python3 get-pip.py --user

• Now test pip install correctly

$ pip --version

pip 20.0.2 from /home/yogesh/.local/lib/python3.6/site-packages/pip (python 3.6)

or

$ pip3 --version

pip 20.0.2 from /home/yogesh/.local/lib/python3.6/site-packages/pip (python 3.6)

Step 4 : Install AWS CLI
Use pip or pip3 to install aws cli.

$ pip install --upgrade awscli --user

or

pip3 install --upgrade awscli --user

when you use --user switch, it install locally
Step 5 : Verify AWS CLI installation

aws --version

Installing AWS CLI Version 2

AWS CLI V2 is complete software package it not required any other package. you no need to install python.

Prerequisite 

Required unzip package to extract the downloaded file.

Step 1 : Download file using curl, use -o(smallcase letter o) option to rename downloaded file from awscli-exe-linux-x86_64.zip to awscliv2.zip

$curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"

Step 2 : Unzip awscliv2.zip using unzip command

$ unzip awscliv2.zip

Step 3: Install 

$ sudo ./aws/install

optional switch

--install-dir - specific location other than default location which under current user.
--bin-dir - specific bin directory
--update - if you want update from version 1 to version 2

Update From AWS CLI version 1 to AWS CLI Version 2

Step 1 : Find bin directory of AWS CLI Version 1 result give --bin-dir parameter value

$ which aws 
 ~/.local/bin/aws

Step 2 : Find installation directory of AWS CLI Version 1. result give --install-dir parameter value. Most cases bin directory and installation directory in version 1 same

$ ls ~/.local/bin/aws 
lrwxrwxrwx. 1 oracle oinstall 43 Apr 11 20:51 /home/oracle/.local/bin/aws

Step 3 : use following command to upgrade from version 1 to version 2

sudo ./aws/install --bin-dir /usr/local/bin --install-dir /usr/local/aws-cli --update

Configure AWS CLI

1. Configure Credential - Use aws configure command to  set aws access key id, aws secret access key, default region name and default output format. 

[oracle@devBase aws]$ aws configure

AWS Access Key ID [****************ksdk]:

AWS Secret Access Key [****************klfk]:

Default region name [ap-south-1]:

Default output format [None]:

These information store under .aws directory of current user. This .aws directory have two file config and credentials. config file store region and output format while credentials store aws access key id and aws secret access key.

[oracle@devBase aws]$ ls ~/.aws/

config  credentials

[oracle@devBase aws]$ cat ~/.aws/config

[default]

region = ap-south-1


[oracle@devBase aws]$ cat ~/.aws/credentials

[default]

aws_access_key_id = jsdaflksdk

aws_secret_access_key = kfsldafklfk

Here [default] indicate that this is default profile.

How to update region, output format, aws access key id, aws secret access key

Use set option to set these value

[oracle@devBase aws]$ aws configure set region ap-south-2 --profile default
[oracle@devBase aws]$ aws configure get region --profile default
ap-south-2

Edit credential or config file

[oracle@devBase aws]$ vim ~/.aws/config 

How to add multiple profile

1. Using aws cli - use --profile switch to add different profile.

[oracle@devBase aws]$ aws configure --profile test
AWS Access Key ID [None]: asdfkasdkjf
AWS Secret Access Key [None]: akdfldsjakf
Default region name [None]: us-west-1 
Default output format [None]: table

you can check the result

[oracle@devBase aws]$ cat ~/.aws/credentials 
[default]
aws_access_key_id = jsdaflksdk
aws_secret_access_key = kfsldafklfk
[test]
aws_access_key_id = asdfkasdkjf
aws_secret_access_key = akdfldsjakf
[oracle@devBase aws]$ cat ~/.aws/config
[default]
region = ap-south-2
[profile test]
region = us-west-1
output = table

2. Edit config and credential file to add different profile.

$ vim ~/.aws/config

[default]
region = ap-south-2
[profile test]
region = us-west-1
output = table
[profile test2]
region = us-west-2
output = json

To use a named profile for multiple commands, you can avoid specifying the profile in every command by setting the AWS_PROFILE environment variable at the command line.

$ export AWS_PROFILE=test

Enable Command Completion

To enable command complettion, run the command for the shell that you're using. You can add the command to your shell's RC file to run it each time you open a new shell. In each command, replace the path /usr/local/aws/bin with the one found on your system in the previous section.

[oracle@devBase aws]$ complete -C '~/.local/bin/aws_completer' aws

note : replace above red marked path to your system aws_completer location.

Reference :

https://pip.pypa.io//en/latest/installing/#do-i-need-to-install-pip
https://www.digitalocean.com/community/tutorials/how-to-install-python-3-and-set-up-a-local-programming-environment-on-centos-7

error
https://github.com/pypa/pip/issues/4186
https://github.com/jasperproject/jasper-client/issues/17
https://github.com/ethereum/viper/issues/276
https://github.com/retspen/webvirtcloud/issues/137
https://github.com/aws/aws-cli/issues/2654
https://github.com/aws/aws-cli/issues/1522
https://stackoverflow.com/questions/31512422/pip-install-r-oserror-errno-13-permission-denied/31512489