[ubuntu] Rename build scripts (#8866)

* [ubuntu] Rename build scripts

* [ubuntu] Change reboot to inline shell

* [ubuntu] Move disk space validation to pester tests

* [ubuntu] Rename helper and tests files

* [ubuntu] Changes to cleanup, post-deployment and r scripts

images/ubuntu/scripts/build/install-aws-tools.sh

@@ -0,0 +1,31 @@
+#!/bin/bash -e
+################################################################################
+##  File:  install-aws-tools.sh
+##  Desc:  Install the AWS CLI, Session Manager plugin for the AWS CLI, and AWS SAM CLI
+##  Supply chain security: AWS SAM CLI - checksum validation
+################################################################################
+
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/os.sh
+source $HELPER_SCRIPTS/install.sh
+
+download_with_retries "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" "/tmp" "awscliv2.zip"
+unzip -qq /tmp/awscliv2.zip -d /tmp
+/tmp/aws/install -i /usr/local/aws-cli -b /usr/local/bin
+
+download_with_retries "https://s3.amazonaws.com/session-manager-downloads/plugin/latest/ubuntu_64bit/session-manager-plugin.deb" "/tmp" "session-manager-plugin.deb"
+apt install /tmp/session-manager-plugin.deb
+
+# Download the latest aws sam cli release
+aws_sam_cli_zip_name="aws-sam-cli-linux-x86_64.zip"
+download_with_retries "https://github.com/aws/aws-sam-cli/releases/latest/download/${aws_sam_cli_zip_name}" "/tmp" $aws_sam_cli_zip_name
+
+# Supply chain security - AWS SAM CLI
+aws_sam_cli_hash=$(get_github_package_hash "aws" "aws-sam-cli" "${aws_sam_cli_zip_name}.. ")
+use_checksum_comparison "/tmp/${aws_sam_cli_zip_name}" "$aws_sam_cli_hash"
+
+# Install the latest aws sam cli release
+unzip /tmp/${aws_sam_cli_zip_name} -d /tmp
+/tmp/install
+
+invoke_tests "CLI.Tools" "AWS"