Merge pull request #73350 from mletalie/OSDOCS-9995

[OSDOCS-9995]: Add AWS CLI requirement to "Getting started with the ROSA CLI" topic in ROSA docs

Author: EricPonvelle

modules/rosa-getting-started-install-configure-cli-tools.adoc

@@ -44,7 +44,7 @@ Specify your `aws_access_key_id`, `aws_secret_access_key`, and `region` in the `
 +
 [NOTE]
 ====
-You can alternatively use the `AWS_DEFAULT_REGION` environment variable to set the default AWS region.
+You can optionally use the `AWS_DEFAULT_REGION` environment variable to set the default AWS region.
 ====
 .. Query the AWS API to verify if the AWS CLI is installed and configured correctly:
 +

modules/rosa-setting-up-cli.adoc

@@ -12,6 +12,28 @@ Use the following steps to install and configure the ROSA CLI (`rosa`) on your i
 
 .Procedure
 
+. Install and configure the latest AWS CLI (`aws`).
+.. Follow the link:https://aws.amazon.com/cli/[AWS Command Line Interface] documentation to install and configure the AWS CLI for your operating system.
++
+Specify your `aws_access_key_id`, `aws_secret_access_key`, and `region` in the `.aws/credentials` file. See link:https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html[AWS Configuration basics] in the AWS documentation.
++
+[NOTE]
+====
+You can optionally use the `AWS_DEFAULT_REGION` environment variable to set the default AWS region.
+====
+.. Query the AWS API to verify if the AWS CLI is installed and configured correctly:
++
+[source,terminal]
+----
+$ aws sts get-caller-identity  --output text
+----
++
+.Example output
+[source,terminal]
+----
+<aws_account_id>    arn:aws:iam::<aws_account_id>:user/<username>  <aws_user_id>
+----
+
 . Download the latest version of the ROSA CLI (`rosa`) for your operating system from the link:https://console.redhat.com/openshift/downloads[*Downloads*] page on {cluster-manager}.
 
 . Extract the `rosa` binary file from the downloaded archive. The following example extracts the binary from a Linux tar archive: