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nixpkgs/nixos/tests/initrd-network-ssh/default.nix
Maximilian Bosch 819b0f4bb8
nixos/initrd-network-ssh: fix test
The test relied on moving `initrd` secrets from the store into the
`initrd` which was fine here as it's only an integration test and not a
production environment.

However, this broke in 20.09 when support for this was dropped[1]. To make
sure that the snakeoil key used as hostkey for `sshd` here actually gets
copied into the VM, I added a small script for this that takes care of
this process while building the initial ramdisk.

[1] d930466b77
2020-11-02 21:18:57 +01:00

80 lines
1.9 KiB
Nix

import ../make-test-python.nix ({ lib, ... }:
{
name = "initrd-network-ssh";
meta = with lib.maintainers; {
maintainers = [ willibutz emily ];
};
nodes = with lib; {
server =
{ config, ... }:
{
boot.kernelParams = [
"ip=${config.networking.primaryIPAddress}:::255.255.255.0::eth1:none"
];
boot.initrd.network = {
enable = true;
ssh = {
enable = true;
authorizedKeys = [ (readFile ./id_ed25519.pub) ];
port = 22;
hostKeys = [ ./ssh_host_ed25519_key ];
};
};
boot.initrd.extraUtilsCommands = ''
mkdir -p $out/secrets/etc/ssh
cat "${./ssh_host_ed25519_key}" > $out/secrets/etc/ssh/sh_host_ed25519_key
'';
boot.initrd.preLVMCommands = ''
while true; do
if [ -f fnord ]; then
poweroff
fi
sleep 1
done
'';
};
client =
{ config, ... }:
{
environment.etc = {
knownHosts = {
text = concatStrings [
"server,"
"${toString (head (splitString " " (
toString (elemAt (splitString "\n" config.networking.extraHosts) 2)
)))} "
"${readFile ./ssh_host_ed25519_key.pub}"
];
};
sshKey = {
source = ./id_ed25519;
mode = "0600";
};
};
};
};
testScript = ''
start_all()
client.wait_for_unit("network.target")
def ssh_is_up(_) -> bool:
status, _ = client.execute("nc -z server 22")
return status == 0
with client.nested("waiting for SSH server to come up"):
retry(ssh_is_up)
client.succeed(
"ssh -i /etc/sshKey -o UserKnownHostsFile=/etc/knownHosts server 'touch /fnord'"
)
client.shutdown()
'';
})