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Remove download_protocol variable from Fedora CoreOS

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* For Fedora CoreOS, only HTTPS downloads are available.
Any iPXE firmware must be compiled to support TLS fetching.
* For Container Linux, using public kernel/initramfs images
defaults to using HTTPS, but can be set to HTTP for iPXE
firmware that hasn't been custom compiled to support TLS
This commit is contained in:
Dalton Hubble 2019-07-27 15:23:34 -07:00
parent 8cb7fe48a1
commit 1409bc62d8
2 changed files with 1 additions and 7 deletions
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6
bare-metal/fedora-coreos/kubernetes/variables.tf
View File

@ -120,12 +120,6 @@ variable "cluster_domain_suffix" {
default = "cluster.local"
}
variable "download_protocol" {
type = string
default = "https"
description = "Protocol iPXE should use to download the kernel and initrd. Defaults to https, which requires iPXE compiled with crypto support. Unused if cached_install is true."
}
variable "cached_install" {
type = string
default = "false"

2
docs/fedora-coreos/bare-metal.md
View File

@ -106,7 +106,7 @@ Read about the [many ways](https://coreos.com/matchbox/docs/latest/network-setup
TFTP chainloading to modern boot firmware, like iPXE, avoids issues with old NICs and allows faster transfer protocols like HTTP to be used.
!!! warning
Compile iPXE from [source](https://github.com/ipxe/ipxe) with support for [HTTPS downloads](https://ipxe.org/crypto). iPXE's pre-built firmware binaries do not enable this. If you cannot enable HTTPS downloads, set `download_protocol = "http"` (discouraged).
Compile iPXE from [source](https://github.com/ipxe/ipxe) with support for [HTTPS downloads](https://ipxe.org/crypto). iPXE's pre-built firmware binaries do not enable this. Fedora does not provide images over HTTP.
## Terraform Setup