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typhoon/google-cloud/flatcar-linux/kubernetes/ssh.tf
Dalton Hubble 6ed048eb65 Workaround Terraform v1.1 file provisioner regression
* Terraform v1.1 changed the behavior of provisioners and
`remote-exec` in a way that breaks support for expansions
in commands (including file provisioner, where `destination`
is part of an `scp` command)
* Terraform will likely revert the change eventually, but I
suspect it will take a while
* Instead, we can stop relying on Terraform's expansion
behavior. `/home/core` is a suitable choice for `$HOME` on
both Flatcar Linux and Fedora CoreOS (harldink `/var/home/core`)

Rel: https://github.com/hashicorp/terraform/issues/30243
2021-12-28 13:25:23 -08:00

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HCL

locals {
# format assets for distribution
assets_bundle = [
# header with the unpack location
for key, value in module.bootstrap.assets_dist :
format("##### %s\n%s", key, value)
]
}
# Secure copy assets to controllers.
resource "null_resource" "copy-controller-secrets" {
count = var.controller_count
depends_on = [
module.bootstrap,
]
connection {
type = "ssh"
host = local.controllers_ipv4_public[count.index]
user = "core"
timeout = "15m"
}
provisioner "file" {
content = join("\n", local.assets_bundle)
destination = "/home/core/assets"
}
provisioner "remote-exec" {
inline = [
"sudo /opt/bootstrap/layout",
]
}
}
# Connect to a controller to perform one-time cluster bootstrap.
resource "null_resource" "bootstrap" {
depends_on = [
null_resource.copy-controller-secrets,
module.workers,
google_dns_record_set.apiserver,
]
connection {
type = "ssh"
host = local.controllers_ipv4_public[0]
user = "core"
timeout = "15m"
}
provisioner "remote-exec" {
inline = [
"sudo systemctl start bootstrap",
]
}
}