00749b3a8f
The inventory of the sha256:* images and the manifest index that
reference them is incomplete because it does not take into account any
image older than the expiration limit. As a result some sha256:* will
be considered orphaned although they are referenced from a manifest
index that was created more recently than the expiration limit.
There must not be any filtering based on the creation time when
building the inventory. The expiration limit must only be taken into
account when deleting orphaned images: those that are more recent than
the expiration limit must not be deleted.
This limit is specially important because it protects against a race
between a cleanup task and an ongoing mirroring task. A mirroring
task (such as skopeo sync) will first upload sha256:* images and then
create the corresponding manifest index. If a cleanup races against
it, the sha256:* images that are not yet referenced will be deleted
without skopeo noticing and the published index manifest that happens
at a later time will contain references to non-existent images.
(cherry picked from commit 0a5fd7fdb8)
116 lines
3.6 KiB
Go
116 lines
3.6 KiB
Go
// Copyright 2024 The Forgejo Authors.
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// SPDX-License-Identifier: GPL-3.0-or-later
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package container
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import (
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"testing"
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"time"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/packages"
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"code.gitea.io/gitea/models/unittest"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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container_module "code.gitea.io/gitea/modules/packages/container"
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"code.gitea.io/gitea/modules/test"
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"code.gitea.io/gitea/modules/timeutil"
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container_service "code.gitea.io/gitea/services/packages/container"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestCleanupSHA256(t *testing.T) {
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require.NoError(t, unittest.PrepareTestDatabase())
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defer test.MockVariableValue(&container_service.SHA256BatchSize, 1)()
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ctx := db.DefaultContext
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createContainer := func(t *testing.T, name, version, digest string, created timeutil.TimeStamp) {
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t.Helper()
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ownerID := int64(2001)
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p := packages.Package{
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OwnerID: ownerID,
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LowerName: name,
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Type: packages.TypeContainer,
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}
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_, err := db.GetEngine(ctx).Insert(&p)
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// package_version").Where("version = ?", multiTag).Update(&packages_model.PackageVersion{MetadataJSON: `corrupted "manifests":[{ bad`})
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require.NoError(t, err)
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var metadata string
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if digest != "" {
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m := container_module.Metadata{
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Manifests: []*container_module.Manifest{
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{
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Digest: digest,
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},
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},
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}
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mt, err := json.Marshal(m)
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require.NoError(t, err)
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metadata = string(mt)
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}
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v := packages.PackageVersion{
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PackageID: p.ID,
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LowerVersion: version,
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MetadataJSON: metadata,
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CreatedUnix: created,
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}
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_, err = db.GetEngine(ctx).NoAutoTime().Insert(&v)
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require.NoError(t, err)
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}
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cleanupAndCheckLogs := func(t *testing.T, olderThan time.Duration, expected ...string) {
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t.Helper()
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logChecker, cleanup := test.NewLogChecker(log.DEFAULT, log.TRACE)
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logChecker.Filter(expected...)
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logChecker.StopMark(container_service.SHA256LogFinish)
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defer cleanup()
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require.NoError(t, CleanupExpiredData(ctx, olderThan))
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logFiltered, logStopped := logChecker.Check(5 * time.Second)
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assert.True(t, logStopped)
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filtered := make([]bool, 0, len(expected))
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for range expected {
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filtered = append(filtered, true)
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}
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assert.EqualValues(t, filtered, logFiltered, expected)
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}
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ancient := 1 * time.Hour
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t.Run("no packages, cleanup nothing", func(t *testing.T) {
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cleanupAndCheckLogs(t, ancient, "Nothing to cleanup")
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})
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orphan := "orphan"
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createdLongAgo := timeutil.TimeStamp(time.Now().Add(-(ancient * 2)).Unix())
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createdRecently := timeutil.TimeStamp(time.Now().Add(-(ancient / 2)).Unix())
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t.Run("an orphaned package created a long time ago is removed", func(t *testing.T) {
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createContainer(t, orphan, "sha256:"+orphan, "", createdLongAgo)
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cleanupAndCheckLogs(t, ancient, "Removing 1 entries from `package_version`")
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cleanupAndCheckLogs(t, ancient, "Nothing to cleanup")
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})
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t.Run("a newly created orphaned package is not cleaned up", func(t *testing.T) {
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createContainer(t, orphan, "sha256:"+orphan, "", createdRecently)
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cleanupAndCheckLogs(t, ancient, "1 out of 1 container image(s) are not deleted because they were created less than")
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cleanupAndCheckLogs(t, 0, "Removing 1 entries from `package_version`")
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cleanupAndCheckLogs(t, 0, "Nothing to cleanup")
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})
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t.Run("a referenced package is not removed", func(t *testing.T) {
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referenced := "referenced"
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digest := "sha256:" + referenced
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createContainer(t, referenced, digest, "", createdRecently)
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index := "index"
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createContainer(t, index, index, digest, createdRecently)
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cleanupAndCheckLogs(t, ancient, "Nothing to cleanup")
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})
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}
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