Setup and Configure AWS CLI on EC2 Instances




For Linux Systems

Prerequisites: 

You must ensure that you have at least Python 2 version 2.6.5+ or Python 3 version 3.3+ installed. To verify your current version, run the command: python --version Installation: The recommendation for installing the AWS CLI is to use the bundled installer provided by AWS. The bundled installer includes all dependencies required for the installation. 


Step 1. To begin the installation run the following command:

sudo curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"
Step 2. Next, you must unzip the downloaded package from step 1:

sudo unzip awscli-bundle.zip
Step 3. Once the package in unzipped, you can run the installation:


sudo ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws
Using the -b option allows all users to use the AWS CLI from any directory, meaning you will not need to specify the install directory in the user’s $PATH variable. 

Step 4. Check the installed version

/usr/local/bin/aws --version
Step 5. Simple configuration of the AWS CLI Once you have installed the AWS CLI, you now need to configure the application to be able to connect to your AWS account. To do so, enter the following from your command prompt:


aws configure

Through aws configure, the AWS CLI will prompt you for four pieces of information. The first two are required. These are your AWS access key ID and AWS secret access key, which serve as your account credentials. 

You can generate new credentials within AWS Identity and Access Management (IAM) if you do not already have them. The other information you will need is region and output format, which you can leave as default for the time being.

aws configure 

AWS Access Key ID [None]: AKIAIOSFODNN7EXAMPLE
AWS Secret Access Key [None]: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY 
Default region name [None]: us-west-2 
Default output format [None]: table


Step 6. Varify the AWS CLI
aws ec2 describe-instances


For Windows Instances

Prerequisites:

You must be running Microsoft Windows XP or later.

Installation:

There are three MSI installers to choose from:
1. Select the option required to download the MSI

2. Run the downloaded MSI installer or the CLI setup file, as required

3. Follow the instructions that appear


Once installed, the program files will be stored as shown:

64-bit version
C:\Program Files\Amazon\AWSCLI 

32-bit version
C:\Program Files (x86)\Amazon\AWSCLI

To confirm the installation, use the aws –version command at a command prompt. 

The AWS access key ID and AWS secret access key are used to authenticate your AWS account. This authorizes you to carry out specific tasks and functions as defined by your permissions level. 

The AWS access key ID is made up of 20 random uppercase alphanumeric characters, such as the one displayed on screen.

The AWS secret access key is made up of 40 random upper and lowercase alphanumeric and non-alphanumeric characters as displayed.

These access keys can be created for any IAM user who requires authentication from a programmatic perspective, such as when using the AWS CLI.


IMPORTANT: When the access keys are created, you are prompted to download and save the details. The secret access key ID will only be displayed once, and if you lose it, then you’ll have to delete the associated access key ID and recreate new keys for the user.
Source: Cloud Academy 

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