1. Explain the 'userData' property in hcloudServer


    The userData property that you can set in an 'hcloudServer' resource is a string containing 'cloud-init' data to initialize the server.

    Cloud-init is a way to provide custom configuration to a cloud instance immediately upon boot. It's a versatile tool that supports a wide range of formats for providing user data, like as YAML or as shell scripts to execute at boot.

    Here is an example of initializing an 'hcloudServer' with user data:

    import pulumi import pulumi_hcloud as hcloud # Initialize a server my_server = hcloud.Server("myServer", image="debian-11", name="myServer", server_type="cx11", user_data=""" #cloud-config package_upgrade: true package_reboot_if_required: true packages: - screen - git - vim runcmd: - echo "Hello, Pulumi!" > /root/hello-pulumi.txt """ )

    In the provided example, the user data is a cloud-init configuration that:

    • Automatically upgrades all system packages (package_upgrade: true)
    • Reboots the server if the package upgrade requires it (package_reboot_if_required: true)
    • Installs additional software packages - 'screen', 'git' and 'vim' (under packages)
    • Executes a shell command upon start-up that creates a new file (/root/hello-pulumi.txt) containing the text "Hello, Pulumi!" (under runcmd)

    You can find more details about the hcloudServer in the 'hcloudServer' resource documentation.