1. SSH Key Management for Secure AI Data Lakes.


    Managing SSH keys is a critical aspect of securing access to an AI data lake architecture, which usually consists of storage solutions, compute instances, and possibly other cloud services requiring secure SSH access for administration and automation tasks.

    To manage SSH keys on cloud platforms such as AWS, GCP, or Azure, you generally need to create and manage SSH key pairs and possibly assign the public keys to compute instances or other services for secure access. Pulumi provides resources across different cloud providers for these tasks.

    Below is a program written in Python that demonstrates how to manage SSH Keys in Google Cloud, as it's one of the typical platforms for setting up AI data lakes. We use the gcp.oslogin.SshPublicKey resource from the pulumi_gcp package to manage SSH keys, which allows you to add public SSH keys to a Google Cloud project or a specific user. Adding a public key enables you to connect securely to the instances without having to manage passwords or less secure access methods.

    Here's how you would use Pulumi to add an SSH public key to a Google Cloud project or user:

    import pulumi import pulumi_gcp as gcp # Replace the following variables with your actual username and public SSH key content. username = "your-username" # Google Cloud user for whom to manage SSH keys public_ssh_key = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC3... user@example.com" # Your SSH public key # Create an SSH Public Key resource for the user. ssh_public_key = gcp.oslogin.SshPublicKey("my-ssh-key", user=username, key=public_ssh_key, expiration_time_usec="..." # Optional expiration time in microseconds since epoch ) # Output the public SSH key's fingerprint. pulumi.export("ssh_key_fingerprint", ssh_public_key.fingerprint)

    This Pulumi program performs the following actions:

    1. Imports pulumi and the pulumi_gcp package to work with Google Cloud resources.
    2. Sets placeholders for the username and public SSH key that will be used. You would replace these placeholders with the actual username on Google Cloud and your own public SSH key respectively.
    3. Using gcp.oslogin.SshPublicKey, we create an SSH public key resource within the user's OS Login profile.
      • username specifies the Google Cloud user the SSH key is associated with.
      • key is the actual SSH public key as a string.
      • expiration_time_usec is an optional field where you can specify an expiration time for the key; you need to supply this value in microseconds since epoch if you want the key to expire.
    4. Exports the ssh_key_fingerprint, which can be useful for tracking and auditing SSH keys within your infrastructure.

    To run this Pulumi program, follow these steps:

    • Install the Pulumi CLI and set up Google Cloud (GCP) CLI with the necessary authentication.
    • Create a new directory, navigate to it, and run pulumi new python to create a new Pulumi Python project.
    • Replace the contents of __main__.py with the above program.
    • Run pulumi up to execute the program and apply the changes to your Google Cloud project.

    Once the program runs successfully, it will add the SSH public key to the specified Google Cloud user's OS Login profile, allowing you to authenticate securely to VM instances that the user has access to. If a key already exists, Pulumi will manage updates or replacements according to changes you make to the program.