Files
felhom-controller/controller/internal/bootstrap/config_refresh_test.go
T
admin 419d3d0b4e controller v0.94.0: pull-based config-refresh (re-pull + self-restart on config_version change)
PushResponse.ConfigVersion from the report ACK; ConfigRefresher reconciles vs.
the last-applied version (settings.applied_config_version) and on a change calls
bootstrap.RefreshConfig (re-pull controller.yaml + re-merge local_api) then
GracefulSelfRestart. First-run records baseline (no restart); unchanged = no-op
(no storm); failed pull keeps config + retries. Companion to hub v0.26.0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HxLA1mZurFq9kt8hneFeCs
2026-06-30 21:49:47 +02:00

96 lines
3.2 KiB
Go

package bootstrap
import (
"os"
"strings"
"testing"
)
// RefreshConfig re-pulls the hub yaml and OVERWRITES controller.yaml, re-merging local_api from
// bootstrap.json. Unlike MaybeIngest it is not first-boot-gated — it clobbers an existing config (the
// hub is the source of truth for controller.yaml).
func TestRefreshConfig_RePullsAndMerges(t *testing.T) {
dir := t.TempDir()
_, cfgPath := writeBootstrap(t, dir, goodBootstrapV2)
// Pre-existing (stale) controller.yaml that must be overwritten.
if err := os.WriteFile(cfgPath, []byte("customer:\n id: cust-8200\n name: OLD\n"), 0o600); err != nil {
t.Fatal(err)
}
var calls int
var gotID, gotPass string
pull := func(hubURL, customerID, pass string) (string, error) {
calls++
gotID, gotPass = customerID, pass
return hubYAML, nil
}
if err := RefreshConfig(cfgPath, testLogger(), pull); err != nil {
t.Fatalf("RefreshConfig: %v", err)
}
if calls != 1 {
t.Errorf("pull called %d times, want 1", calls)
}
if gotID != "cust-8200" || gotPass != "five-word-passphrase-here" {
t.Errorf("pull args = (%q,%q), want (cust-8200, five-word-passphrase-here)", gotID, gotPass)
}
out, err := os.ReadFile(cfgPath)
if err != nil {
t.Fatal(err)
}
s := string(out)
if strings.Contains(s, "OLD") {
t.Errorf("controller.yaml still contains stale content:\n%s", s)
}
if !strings.Contains(s, "CUSTKEY_FROM_HUB") {
t.Errorf("controller.yaml missing hub-pulled api_key:\n%s", s)
}
// local_api re-merged from bootstrap.json (the hub yaml lacks it).
if !strings.Contains(s, "PERGUESTTOKEN") || !strings.Contains(s, "192.168.0.162:8443") {
t.Errorf("controller.yaml missing re-merged local_api:\n%s", s)
}
}
// Fail-safe: a failed pull leaves the existing controller.yaml UNCHANGED and returns an error (the
// caller then keeps the current config and does not restart).
func TestRefreshConfig_FailedPullLeavesConfigUnchanged(t *testing.T) {
dir := t.TempDir()
_, cfgPath := writeBootstrap(t, dir, goodBootstrapV2)
original := "customer:\n id: cust-8200\n name: CURRENT\n"
if err := os.WriteFile(cfgPath, []byte(original), 0o600); err != nil {
t.Fatal(err)
}
pull := func(hubURL, customerID, pass string) (string, error) {
return "", ErrPullTransient // hub unreachable
}
if err := RefreshConfig(cfgPath, testLogger(), pull); err == nil {
t.Fatal("RefreshConfig should return an error on a failed pull")
}
out, _ := os.ReadFile(cfgPath)
if string(out) != original {
t.Errorf("controller.yaml changed despite failed pull:\n%s", string(out))
}
}
// Fail-safe: no bootstrap.json (e.g. a wizard-configured guest) → error, nothing written.
func TestRefreshConfig_NoBootstrapErrors(t *testing.T) {
dir := t.TempDir()
cfgPath := dir + "/controller.yaml"
t.Setenv("FELHOM_BOOTSTRAP_PATH", dir+"/does-not-exist.json")
called := false
pull := func(hubURL, customerID, pass string) (string, error) { called = true; return hubYAML, nil }
if err := RefreshConfig(cfgPath, testLogger(), pull); err == nil {
t.Fatal("RefreshConfig should error when bootstrap.json is absent")
}
if called {
t.Error("pull should not be called when bootstrap.json is absent")
}
if _, err := os.Stat(cfgPath); !os.IsNotExist(err) {
t.Error("controller.yaml should not have been written")
}
}