Files
mesh-catalog/modules/logrotate/cmd/logrotate-tools/manifest_test.go
T
jschoubben b1d875410a logrotate: dry-run the base against logs of its own, so the shut-off unit level does not stat the machine's /var/log (issue 1891)
The unit level runs in bubblewrap, where /var/log is not there; the base's
/var/log/wtmp block has no missingok, so logrotate -d failed its stat and
every mesh-catalog check that reached this test failed.
2026-10-23 09:10:09 +02:00

88 lines
3.2 KiB
Go

package main
// The module's shape (novox/hq to-be 42 Phase 1, research 027): the package, its base configuration
// whole, and its timer — and the base configuration proven by logrotate's own dry run where logrotate
// is installed, because a base configuration that does not parse stops every rotation on the machine.
import (
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
)
func TestItDeclaresThePackageTheBaseAndTheTimer(t *testing.T) {
m := manifest(t)
if p := m.resource(t, "package"); p["package"] != "logrotate" {
t.Fatalf("%v", p)
}
c := m.resource(t, "config")
if c["path"] != BaseConf || c["into"] != nil || !strings.HasPrefix(templateText(t, c), "# The mesh's (module logrotate") {
t.Fatalf("%v", c)
}
if !strings.Contains(templateText(t, c), "\ninclude "+RulesDir+"\n") {
t.Fatal("the base must include the packages' rules, or nothing of theirs rotates")
}
if strings.Contains(templateText(t, c), "olddir") {
t.Fatal("olddir flattens logs of different directories into one, where two of one name collide")
}
timer := m.resource(t, "timer")
if timer["unit"] != "logrotate.timer" || timer["state"] != "running" || timer["boot"] != "enabled" {
t.Fatalf("%v", timer)
}
}
func TestTheBaseParses(t *testing.T) {
logrotate, err := exec.LookPath("logrotate")
if err != nil {
t.Skip("logrotate is not installed here; the base configuration is not dry-run")
}
dir := t.TempDir()
conf := filepath.Join(dir, "logrotate.conf")
if err := os.WriteFile(conf, []byte(dryRunBase(t, dir)), 0o644); err != nil {
t.Fatal(err)
}
out, err := exec.Command(logrotate, "-d", "-s", filepath.Join(dir, "state"), conf).CombinedOutput()
if err != nil || strings.Contains(string(out), "error:") {
t.Fatalf("logrotate -d: %v\n%s", err, out)
}
}
// The dry run proves the base parses, not what the machine's logs are: the unit level runs shut off in
// bubblewrap (mesh-sdk buildstep.Isolated), where /var/log is not there, and a base block without
// missingok then fails its stat (issue 1891).
func TestTheDryRunReadsNothingOfTheMachine(t *testing.T) {
dir := t.TempDir()
content := dryRunBase(t, dir)
for _, machine := range []string{"include " + RulesDir, "/var/log/"} {
if strings.Contains(content, machine) {
t.Fatalf("the dry run's base still names %s of the machine:\n%s", machine, content)
}
}
for _, log := range []string{"wtmp", "btmp"} {
if _, err := os.Stat(filepath.Join(dir, "log", log)); err != nil {
t.Fatalf("the base's own log %s is not in the dry run's directory: %v", log, err)
}
}
}
// dryRunBase is the base configuration pointed into dir: its include at dir/d, and its own logs at dir/log,
// both made there.
func dryRunBase(t *testing.T, dir string) string {
t.Helper()
content := strings.ReplaceAll(templateText(t, manifest(t).resource(t, "config")), "include "+RulesDir, "include "+filepath.Join(dir, "d"))
content = strings.ReplaceAll(content, "/var/log/", filepath.Join(dir, "log")+"/")
for _, d := range []string{"d", "log"} {
if err := os.Mkdir(filepath.Join(dir, d), 0o755); err != nil {
t.Fatal(err)
}
}
for _, log := range []string{"wtmp", "btmp"} {
if err := os.WriteFile(filepath.Join(dir, "log", log), nil, 0o644); err != nil {
t.Fatal(err)
}
}
return content
}