ArcBox 3.0 - Credential updates and PowerShell Remoting for Linux

[janegilring]

This pull request includes several updates to the azure_jumpstart_arcbox project, focusing on enhancing security, improving script efficiency, and updating configurations. The most important changes include modifications to hard-coded credentials, adjustments to VM handling logic, and updates to module installations.

Credentials:

• Updated hard-coded credentials for nested VMs to use more updated values in ArcServersLogonScript.ps1. ($nestedWindowsPassword, $nestedLinuxPassword) [1] [2]

VM Handling Logic:

• Added conditional checks for the namingPrefix to streamline the renaming and rebooting process of nested VMs. (ArcServersLogonScript.ps1) [1] [2]
• Replaced repetitive VM status checking loops with more efficient Wait-VM commands. (ArcServersLogonScript.ps1) [1] [2]

Configuration Updates:

• Changed the VHD source folder URL to point to the pre-production environment. (ArcServersLogonScript.ps1)
• Increased retry count for SQL server extension installation to improve robustness. (ArcServersLogonScript.ps1)
• Removed unnecessary module from the installation list in Bootstrap.ps1. ($modules)

Script Efficiency:

• Streamlined the process of copying and executing scripts on nested Linux VMs by using Copy-VMFile and PowerShell Remoting via SSH. (ArcServersLogonScript.ps1) [1] [2]

Miscellaneous:

• Removed redundant configuration for incoming connections on port 22 from installArcAgentUbuntu.sh.
• Added #Requires statement for Pester module in Invoke-Test.ps1 to ensure proper module version is used.
• Disabled local user access on the storage account in mgmtStagingStorage.bicep.

[sebassem]

LGTM