25 Services (DHCP, DNS, etc.) #

Some external services like DHCP, DNS, etc. could be required depending on the kind of environment where they are deployed:

Connected environment: In this case, the nodes will be connected to the Internet (via routing L3 protocols) and the external services will be provided by the customer.
Disconnected / air-gap environment: In this case, the nodes will not have Internet IP connectivity and additional services will be required to locally mirror content required by the directed network provisioning workflow.
File server: A file server is used to store the OS images to be provisioned on the downstream cluster nodes during the directed network provisioning workflow. The Metal³ Helm chart can deploy a media server to store the OS images — check the following section (Note), but it is also possible to use an existing local webserver.