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print the vm test's priv response and journal only on failure

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This commit is contained in:
atlas 2026-10-28 21:51:15 +01:00 • committed by mara
commit bbc2a83771
1 changed files with 6 additions and 4 deletions
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10
nix/vm-tests/agent-ephemeral-rootfs.nix
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@ -132,6 +132,9 @@ pkgs.testers.runNixOSTest {
def stop():
host.succeed(f"nixos-container stop {MACHINE}")
def priv_journal():
return host.execute("journalctl -u hive-priv --no-pager | tail -n 30")[1]
def write_flags():
"""What hive-c0re does before every start: one request to hive-priv."""
req = json.dumps({
@ -143,11 +146,10 @@ pkgs.testers.runNixOSTest {
# socat gives up 0.5s after its stdin ends unless told to wait; the
# salvage copies a whole root, which takes longer.
out = host.succeed(f"echo '{req}' | socat -t 120 - UNIX-CONNECT:/run/hive/priv.sock")
print("hive-priv answered: " + repr(out))
print(host.execute("journalctl -u hive-priv --no-pager | tail -n 30")[1])
lines = out.strip().splitlines()
assert lines, "hive-priv sent no response"
assert json.loads(lines[-1])["ok"] is True, out
# The journal is read only when the assert fires.
assert lines, f"hive-priv sent no response; journal:\n{priv_journal()}"
assert json.loads(lines[-1])["ok"] is True, f"response={out!r}; journal:\n{priv_journal()}"
def conf():
return host.succeed(f"cat /etc/nixos-containers/{MACHINE}.conf")