Fail to write to /var/post_install/kustomization.yaml

[otavio]

          It seems that something is wrong. Please see the details:

module.infra.null_resource.kustomization (remote-exec): Connecting to remote host via SSH...
module.infra.null_resource.kustomization (remote-exec):   Host: xxxx
module.infra.null_resource.kustomization (remote-exec):   User: root
module.infra.null_resource.kustomization (remote-exec):   Password: false
module.infra.null_resource.kustomization (remote-exec):   Private key: false
module.infra.null_resource.kustomization (remote-exec):   Certificate: false
module.infra.null_resource.kustomization (remote-exec):   SSH Agent: true
module.infra.null_resource.kustomization (remote-exec):   Checking Host Key: false
module.infra.null_resource.kustomization (remote-exec):   Target Platform: unix
module.infra.null_resource.kustomization (remote-exec): Connected!
module.infra.null_resource.kustomization: Still creating... [40s elapsed]
module.infra.null_resource.kustomization (remote-exec): + sed -i 's/^- |[0-9]\+$/- |/g' /var/post_install/kustomization.yaml
module.infra.null_resource.kustomization (remote-exec): sed: can't read /var/post_install/kustomization.yaml: Not a directory
╷
│ Error: remote-exec provisioner error
│
│   with module.infra.null_resource.kustomization,
│   on .terraform/modules/infra/init.tf line 288, in resource "null_resource" "kustomization":
│  288:   provisioner "remote-exec" {
│
│ error executing "/tmp/terraform_148135017.sh": Process exited with status 2
╵
% ssh root@xxxx -p 60022
infra-control-plane-vnc:~ # less /var/post_install
infra-control-plane-vnc:~ # ls -l /var/post_install
-rw-r--r--. 1 root root 642 Jan  2 18:16 /var/post_install
infra-control-plane-vnc:~ #

The file /var/post_install should have been a directory instead.

Originally posted by @otavio in #1135 (comment)

[otavio]

The sed is at:

terraform-hcloud-kube-hetzner/init.tf

Lines 292 to 300 in b6882d1

	# This ugly hack is here, because terraform serializes the
	# embedded yaml files with "- |2", when there is more than
	# one yamldocument in the embedded file. Kustomize does not understand
	# that syntax and tries to parse the blocks content as a file, resulting
	# in weird errors. so gnu sed with funny escaping is used to
	# replace lines like "- |3" by "- |" (yaml block syntax).
	# due to indendation this should not changes the embedded
	# manifests themselves
	"sed -i 's/^- |[0-9]\\+$/- |/g' /var/post_install/kustomization.yaml",

from:

terraform-hcloud-kube-hetzner/init.tf

Lines 150 to 154 in b6882d1

	# Upload kustomization.yaml, containing Hetzner CSI & CSM, as well as kured.
	provisioner "file" {
	content = local.kustomization_backup_yaml
	destination = "/var/post_install/kustomization.yaml"
	}

It might be due the create_kustomization = false in kube.tf

[mysticaltech]

@otavio Thanks for this, but how to reproduce?

[otavio]

I have created a node, and it failed.

[mysticaltech]

@otavio I'm sorry I cannot reproduce, for me it works, even with create_kustomization = false.

[mysticaltech]

So my conclusion is that you are probably on Windows, and something is up with WSL. Please try from Mac or Linux to confirm. Moving this to a discussion, please don't hesitate to tag me again in the discussion.