mirror of
https://github.com/gravitational/teleport.git
synced 2026-10-25 18:59:51 +08:00
Kyle Kloberdanz
89256e3a7f
This adds an in-memory SQLite-backed audit log queue. The intention is this can act as a fallback if there is an error constructing a disk backed queue, for example, if writing to the filesystem causes an error. A follow-up PR will implement the fallback logic.
134 lines
3.8 KiB
Go
134 lines
3.8 KiB
Go
/*
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* Teleport
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* Copyright (C) 2026 Gravitational, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package auditqueue
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import (
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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func TestSQLiteInMemoryQueue_IsInMemory(t *testing.T) {
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t.Parallel()
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q, err := New(KindSQLiteMemory, Config{})
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, q.Close()) })
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mem, ok := q.(*sqliteInMemoryQueue)
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require.True(t, ok)
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rows, err := mem.inner.db.Query("PRAGMA database_list")
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require.NoError(t, err)
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defer rows.Close()
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var foundMain bool
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for rows.Next() {
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var seq int
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var name, file string
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require.NoError(t, rows.Scan(&seq, &name, &file))
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if name == "main" {
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foundMain = true
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require.Empty(t, file,
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"main database file path should be empty for in-memory DB, got %q", file)
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}
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}
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require.NoError(t, rows.Err())
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require.True(t, foundMain, "main database not found in PRAGMA database_list")
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}
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func TestSQLiteInMemoryQueue_InstancesAreIsolated(t *testing.T) {
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t.Parallel()
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a, err := New(KindSQLiteMemory, Config{})
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, a.Close()) })
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b, err := New(KindSQLiteMemory, Config{})
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, b.Close()) })
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require.NoError(t, a.Enqueue(newTestEvent(1)))
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memA := a.(*sqliteInMemoryQueue)
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memB := b.(*sqliteInMemoryQueue)
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require.NotEqual(t, memA.id, memB.id, "each instance should have a unique DB id")
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// Wait for the event to land in instance A's DB.
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require.Eventually(t, func() bool {
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var n int
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if err := memA.inner.db.QueryRow("SELECT COUNT(*) FROM audit_queue").Scan(&n); err != nil {
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return false
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}
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return n == 1
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}, testDefaultTimeout, 10*time.Millisecond, "instance a never received the enqueued event")
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// b should see zero events because it owns a different DB.
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var n int
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require.NoError(t, memB.inner.db.QueryRow("SELECT COUNT(*) FROM audit_queue").Scan(&n))
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require.Equal(t, 0, n, "instance b should not see events enqueued into instance a")
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}
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func TestSQLiteInMemoryQueue_SingleQueueConnection(t *testing.T) {
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t.Parallel()
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q, err := New(KindSQLiteMemory, Config{})
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, q.Close()) })
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mem, ok := q.(*sqliteInMemoryQueue)
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require.True(t, ok)
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require.Equal(t, 1, mem.inner.db.Stats().MaxOpenConnections,
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"queue DB must be capped at one connection to avoid shared-cache lock errors")
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const N = 100
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var wg sync.WaitGroup
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errs := make([]error, N)
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for i := range N {
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wg.Go(func() {
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errs[i] = q.Enqueue(newTestEvent(int64(i)))
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})
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}
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wg.Wait()
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for i, err := range errs {
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require.NoError(t, err, "Enqueue %d failed", i)
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}
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}
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func TestSQLiteInMemoryQueue_MaxBytesEnforced(t *testing.T) {
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t.Parallel()
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const maxBytes = 1 * 1024 * 1024 // 1 MiB
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q, err := New(KindSQLiteMemory, Config{MaxBytes: maxBytes})
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, q.Close()) })
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mem, ok := q.(*sqliteInMemoryQueue)
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require.True(t, ok)
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var pages int64
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require.NoError(t, mem.inner.db.QueryRow("PRAGMA max_page_count").Scan(&pages))
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require.Equal(t, bytesToPages(maxBytes), pages,
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"max_page_count should be derived from cfg.MaxBytes")
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}
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