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incus-vm: skip incus_image copy for NixOS, use alias directly

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The incus provider errors with 'source and target servers must be
different' when copying within the same remote. NixOS images are
pre-imported on the incus host with a local alias (nixos/25.11), so
skip the copy entirely (count=0) and pass the alias string directly
as incus_instance.image for NixOS workspaces.
This commit is contained in:
Ben Potter 2026-04-27 13:26:47 +00:00
parent a8e04991bf
commit d5bdf7f9f5
1 changed files with 9 additions and 7 deletions
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16
registry/bpmct/templates/incus-vm/main.tf
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@ -215,15 +215,16 @@ resource "coder_agent" "main" {
}
}
# For non-NixOS images, copy from the public images: simplestreams remote.
# NixOS is not on linuxcontainers.org — pre-imported on the incus host and
# aliased (e.g. nixos/25.11). The provider cannot copy same-remote, so we
# skip this resource for NixOS and reference the alias directly below.
resource "incus_image" "image" {
count = local.is_nixos ? 0 : 1
remote = local.incus_remote
source_image = {
# NixOS images are stored directly on the target incus host (linuxcontainers.org
# doesn't carry NixOS). Use the same remote as the destination so the provider
# resolves the alias locally on that host rather than on the provisioner.
# Ubuntu/other images are pulled from the public images: simplestreams remote.
remote = local.is_nixos ? local.incus_remote : "images"
name = local.is_nixos ? data.coder_parameter.image.value : "${data.coder_parameter.image.value}/${data.coder_parameter.host.value == "ThinkStation" ? "amd64" : "arm64"}"
remote = "images"
name = "${data.coder_parameter.image.value}/${data.coder_parameter.host.value == "ThinkStation" ? "amd64" : "arm64"}"
type = "virtual-machine"
architecture = data.coder_parameter.host.value == "ThinkStation" ? "x86_64" : "aarch64"
}
@ -233,7 +234,8 @@ resource "incus_instance" "dev" {
remote = local.incus_remote
running = data.coder_workspace.me.start_count == 1
name = "coder-${lower(data.coder_workspace_owner.me.name)}-${lower(data.coder_workspace.me.name)}"
image = incus_image.image.fingerprint
# NixOS: reference pre-imported alias directly; Ubuntu: use copied fingerprint.
image = local.is_nixos ? data.coder_parameter.image.value : incus_image.image[0].fingerprint
type = "virtual-machine"
profiles = data.coder_parameter.host.value == "ThinkStation" ? ["thinkstation"] : ["default"]