examples/terraform: Update bare-metal module version

* Upstream fixes to bump all control plane components to v1.7.5
* Stop including etcd-network-checkpointer with on-host etcd
* Remove experimental_self_hosted_etcd support

examples/terraform/bootkube-install/README.md

@@ -68,7 +68,6 @@ You may set certain optional variables to override defaults. Set `networking` to
 # cached_install = "false"
 # install_disk = "/dev/sda"
 # container_linux_oem = ""
-# experimental_self_hosted_etcd = "false"
 # networking = "flannel"
 ```
 

examples/terraform/bootkube-install/cluster.tf

@@ -1,6 +1,6 @@
 // Kubernetes cluster
 module "cluster" {
-  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=0d6410505d8d65cef94a1a3f2f921327e88adfd2"
+  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=f7dd959e9c444ce1b2759a214b99990b89705ac4"
 
   # install
   matchbox_http_endpoint  = "${var.matchbox_http_endpoint}"
@@ -28,5 +28,4 @@ module "cluster" {
   cached_install                = "${var.cached_install}"
   install_disk                  = "${var.install_disk}"
   container_linux_oem           = "${var.container_linux_oem}"
-  experimental_self_hosted_etcd = "${var.experimental_self_hosted_etcd}"
 }

examples/terraform/bootkube-install/multi-controller.tfvars.example

@@ -20,4 +20,3 @@ asset_dir = "assets"
 
 # Optional
 # container_linux_oem = ""
-# experimental_self_hosted_etcd = "true"

examples/terraform/bootkube-install/terraform.tfvars.example

@@ -22,5 +22,4 @@ asset_dir = "assets"
 cached_install = "true"
 # install_disk = "/dev/sda"
 # container_linux_oem = ""
-# experimental_self_hosted_etcd = "false"
 # networking = "flannel"

examples/terraform/bootkube-install/variables.tf

@@ -108,8 +108,3 @@ variable "container_linux_oem" {
   default     = ""
   description = "Specify an OEM image id to use as base for the installation (e.g. ami, vmware_raw, xen) or leave blank for the default image"
 }
-
-variable "experimental_self_hosted_etcd" {
-  default     = "false"
-  description = "Create self-hosted etcd cluster as pods on Kubernetes, instead of on-hosts"
-}