Plugins » Katello

h1. Bootdisk

h2. Requirements

https://trello.com/c/to0NYlGk/7-using-discovery-without-dhcp-2

I would like a boot disk option that provides the following:

* A single ISO that allows me to provision a system against any configured hostgroup on the Satellite.

* The ISO would not require me to pre-create a host in Satellite.

* The ISO would allow me to provide a user provided IP address or use DHCP to find the Satellite server.

* The ISO will be generated on the Satellite

* The ISO will provide a means to provision via a Capsule

* The functionality to generate the ISO will be exposed via the API, UI & CLI.

* Functionality to provide a local IP and VLAN to the target host

h2. Approaches

h3. Bootdisk

In the bootdisk approach, the Generic bootdisk provides a menu like below.

When the user first boots, they have the option for configuring DHCP or manually entering network configuration.

!bootdisk.png!

Manual network configuration:

!network.png!

After configuring network, you can select from the main menu:

* Existing host record (traditional generic bootdisk)

* New host from host group

* The provisioning URL can be customized, for example, if DNS is not available and you need to use an IP

!main.png!

If creating a new host, iPXE chain loads the host group menu off of the Foreman server.

*Workflow*

They are prompted for a host name:

!hostname.png!

And then hostgroup, and (if enabled) organization, and location:

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Finally the user confirms the selections and:

* iPXE sends the options to Foreman

* Foreman creates the new Host, and runs orchestration

* Server boots vmlinuz/initrd

* Loads kickstart

* Provisions as normal

!boot.png!

*This is ridiculously insecure, because we're running orchestration with access to services like DNS, Realm, Puppet, etc*  

Options:

* Have bootdisk ask for login

** Only supports HTTP (plaintext)

** Foreman if SSL is enabled does not allow HTTP login

** Discovery, in its full RHEL environment, could do this

* Tokens

** Have a bootdisk wizard that lets a user generate a bootdisk image with embedded tokens, that give access only to specific host groups/orgs/locations

h3. Discovery

The idea is to introduce TUI allowing users to do standard provisioning (register in Foreman using a hostgroup first, called "managed") or standalone (just select a kickstart without creating a host). Prototype is implemented as a ruby service using newt bindings, the service awaits 10 seconds before initiating discovery (key press cancels).

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New status screen was crafted where users can investigate current status, reboot or even enable ssh daemon setting and unlocking root account.

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Upon countdown cancellation, menu appears allowing to initiate provisioning or return to discovery process.

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