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Fix bare-metal multiple apply/ssh on Terraform v0.11.4+
* Terraform v0.11.4 introduced changes to remote-exec that mean Typhoon bare-metal clusters require multiple runs of terraform apply to ssh and bootstrap. * Bare-metal installs PXE boot a live instance to install to disk and then reboot from disk as controllers/workers. Terraform remote-exec has no way to "know" to wait until the reboot has occurred to kickoff Kubernetes bootstrap. Previously Typhoon created a "debug" user during this install phase to allow an admin to SSH, but remote-exec would hang, trying to connect as user "core". Terraform v0.11.4 changes this behavior so remote-exec fails and a user must re-run terraform apply until succeeding. * A new way to "trick" remote-exec into waiting for the reboot into the disk install is to run SSH on a non-standard port during the disk install. This retains the ability for an admin to SSH during install (most distros don't have this) and fixes the issue so only a single run of terraform apply is needed. * https://github.com/hashicorp/terraform/pull/17359#issuecomment-376415464
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@ -32,6 +32,7 @@ data "template_file" "container-linux-install-configs" {
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ignition_endpoint = "${format("%s/ignition", var.matchbox_http_endpoint)}"
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install_disk = "${var.install_disk}"
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container_linux_oem = "${var.container_linux_oem}"
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ssh_authorized_key = "${var.ssh_authorized_key}"
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# only cached-container-linux profile adds -b baseurl
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baseurl_flag = ""
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@ -73,6 +74,7 @@ data "template_file" "cached-container-linux-install-configs" {
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ignition_endpoint = "${format("%s/ignition", var.matchbox_http_endpoint)}"
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install_disk = "${var.install_disk}"
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container_linux_oem = "${var.container_linux_oem}"
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ssh_authorized_key = "${var.ssh_authorized_key}"
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# profile uses -b baseurl to install from matchbox cache
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baseurl_flag = "-b ${var.matchbox_http_endpoint}/assets/coreos"
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