2017-05-27 06:12:13 +00:00
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package cache
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2017-05-26 00:16:32 +00:00
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import (
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2017-05-26 18:56:12 +00:00
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"context"
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2017-07-14 18:59:31 +00:00
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"fmt"
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2017-05-26 00:16:32 +00:00
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"io/ioutil"
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"os"
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2017-05-26 17:20:41 +00:00
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"path/filepath"
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2017-05-26 00:16:32 +00:00
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"testing"
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2017-06-13 23:01:47 +00:00
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"github.com/containerd/containerd/namespaces"
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2017-12-28 07:07:13 +00:00
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"github.com/containerd/containerd/snapshots"
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2018-04-03 09:37:16 +00:00
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"github.com/containerd/containerd/snapshots/native"
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2017-07-05 02:00:27 +00:00
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"github.com/moby/buildkit/cache/metadata"
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2017-07-25 22:14:46 +00:00
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"github.com/moby/buildkit/client"
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2017-06-22 20:15:46 +00:00
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"github.com/moby/buildkit/snapshot"
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2017-05-26 17:59:33 +00:00
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"github.com/pkg/errors"
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2017-07-14 18:59:31 +00:00
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"github.com/stretchr/testify/require"
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2017-05-26 00:16:32 +00:00
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)
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2017-05-27 06:12:13 +00:00
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func TestManager(t *testing.T) {
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2017-12-09 02:19:08 +00:00
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t.Parallel()
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2017-06-13 23:01:47 +00:00
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ctx := namespaces.WithNamespace(context.Background(), "buildkit-test")
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2017-05-26 00:16:32 +00:00
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tmpdir, err := ioutil.TempDir("", "cachemanager")
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 00:16:32 +00:00
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defer os.RemoveAll(tmpdir)
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2018-04-03 09:37:16 +00:00
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snapshotter, err := native.NewSnapshotter(filepath.Join(tmpdir, "snapshots"))
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2017-11-06 09:44:23 +00:00
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require.NoError(t, err)
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cm := getCacheManager(t, tmpdir, snapshotter)
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2017-05-26 00:16:32 +00:00
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2017-06-13 23:01:47 +00:00
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_, err = cm.Get(ctx, "foobar")
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2017-07-14 18:59:31 +00:00
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require.Error(t, err)
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2017-05-26 00:34:59 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 0, 0)
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2017-05-26 21:17:38 +00:00
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2017-07-20 22:55:24 +00:00
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active, err := cm.New(ctx, nil, CachePolicyRetain)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:20:41 +00:00
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2017-07-18 06:08:22 +00:00
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m, err := active.Mount(ctx, false)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:20:41 +00:00
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lm := snapshot.LocalMounter(m)
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target, err := lm.Mount()
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:20:41 +00:00
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fi, err := os.Stat(target)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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require.Equal(t, fi.IsDir(), true)
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2017-05-26 17:20:41 +00:00
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err = lm.Unmount()
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:20:41 +00:00
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2017-06-13 23:01:47 +00:00
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_, err = cm.GetMutable(ctx, active.ID())
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2017-07-14 18:59:31 +00:00
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require.Error(t, err)
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require.Equal(t, errLocked, errors.Cause(err))
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2017-05-26 17:59:33 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 1, 0)
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2017-05-26 21:17:38 +00:00
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2017-07-14 18:59:31 +00:00
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snap, err := active.Commit(ctx)
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require.NoError(t, err)
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2017-05-26 17:59:33 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 1, 0)
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2017-05-26 21:17:38 +00:00
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2017-06-13 23:01:47 +00:00
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_, err = cm.GetMutable(ctx, active.ID())
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2017-07-14 18:59:31 +00:00
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require.Error(t, err)
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require.Equal(t, errLocked, errors.Cause(err))
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2017-05-26 18:56:12 +00:00
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2017-06-13 23:01:47 +00:00
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err = snap.Release(ctx)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 18:56:12 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 0, 1)
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2017-05-26 21:17:38 +00:00
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2017-06-13 23:01:47 +00:00
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active, err = cm.GetMutable(ctx, active.ID())
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 18:56:12 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 1, 0)
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2017-05-26 21:17:38 +00:00
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2017-07-14 18:59:31 +00:00
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snap, err = active.Commit(ctx)
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require.NoError(t, err)
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2017-05-26 17:59:33 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 1, 0)
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2017-05-26 21:17:38 +00:00
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2017-07-14 18:59:31 +00:00
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err = snap.Finalize(ctx)
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require.NoError(t, err)
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2017-06-13 23:01:47 +00:00
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err = snap.Release(ctx)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:59:33 +00:00
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2017-06-13 23:01:47 +00:00
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_, err = cm.GetMutable(ctx, active.ID())
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2017-07-14 18:59:31 +00:00
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require.Error(t, err)
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require.Equal(t, errNotFound, errors.Cause(err))
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2017-05-26 18:56:12 +00:00
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2017-06-13 23:01:47 +00:00
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_, err = cm.GetMutable(ctx, snap.ID())
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2017-07-14 18:59:31 +00:00
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require.Error(t, err)
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require.Equal(t, errInvalid, errors.Cause(err))
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2017-05-26 18:56:12 +00:00
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2017-06-13 23:01:47 +00:00
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snap, err = cm.Get(ctx, snap.ID())
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 18:56:12 +00:00
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2017-06-13 23:01:47 +00:00
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snap2, err := cm.Get(ctx, snap.ID())
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 18:56:12 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 1, 0)
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2017-05-26 21:17:38 +00:00
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2017-06-13 23:01:47 +00:00
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err = snap.Release(ctx)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 18:56:12 +00:00
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2017-07-20 22:55:24 +00:00
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active2, err := cm.New(ctx, snap2, CachePolicyRetain)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 20:45:01 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 2, 0)
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2017-05-26 21:17:38 +00:00
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2017-07-14 18:59:31 +00:00
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snap3, err := active2.Commit(ctx)
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require.NoError(t, err)
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2017-05-26 20:45:01 +00:00
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2017-06-13 23:01:47 +00:00
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err = snap2.Release(ctx)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 20:45:01 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 2, 0)
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2017-05-26 21:17:38 +00:00
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2017-06-13 23:01:47 +00:00
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err = snap3.Release(ctx)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-05-26 17:59:33 +00:00
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2017-11-17 02:09:35 +00:00
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checkDiskUsage(ctx, t, cm, 0, 2)
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2017-05-26 21:17:38 +00:00
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2017-12-27 01:22:50 +00:00
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buf := pruneResultBuffer()
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err = cm.Prune(ctx, buf.C)
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buf.close()
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 0, 0)
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require.Equal(t, len(buf.all), 2)
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2017-05-26 00:16:32 +00:00
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err = cm.Close()
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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2017-12-27 01:22:50 +00:00
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dirs, err := ioutil.ReadDir(filepath.Join(tmpdir, "snapshots/snapshots"))
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require.NoError(t, err)
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require.Equal(t, 0, len(dirs))
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}
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func TestPrune(t *testing.T) {
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t.Parallel()
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ctx := namespaces.WithNamespace(context.Background(), "buildkit-test")
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tmpdir, err := ioutil.TempDir("", "cachemanager")
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require.NoError(t, err)
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defer os.RemoveAll(tmpdir)
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2018-04-03 09:37:16 +00:00
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snapshotter, err := native.NewSnapshotter(filepath.Join(tmpdir, "snapshots"))
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2017-12-27 01:22:50 +00:00
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require.NoError(t, err)
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cm := getCacheManager(t, tmpdir, snapshotter)
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active, err := cm.New(ctx, nil)
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require.NoError(t, err)
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snap, err := active.Commit(ctx)
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require.NoError(t, err)
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active, err = cm.New(ctx, snap, CachePolicyRetain)
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require.NoError(t, err)
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snap2, err := active.Commit(ctx)
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 2, 0)
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// prune with keeping refs does nothing
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buf := pruneResultBuffer()
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err = cm.Prune(ctx, buf.C)
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buf.close()
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 2, 0)
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require.Equal(t, len(buf.all), 0)
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dirs, err := ioutil.ReadDir(filepath.Join(tmpdir, "snapshots/snapshots"))
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require.NoError(t, err)
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require.Equal(t, 2, len(dirs))
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err = snap2.Release(ctx)
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 1, 1)
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// prune with keeping single refs deletes one
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buf = pruneResultBuffer()
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err = cm.Prune(ctx, buf.C)
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buf.close()
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 1, 0)
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require.Equal(t, len(buf.all), 1)
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dirs, err = ioutil.ReadDir(filepath.Join(tmpdir, "snapshots/snapshots"))
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require.NoError(t, err)
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require.Equal(t, 1, len(dirs))
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err = snap.Release(ctx)
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require.NoError(t, err)
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active, err = cm.New(ctx, snap, CachePolicyRetain)
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require.NoError(t, err)
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snap2, err = active.Commit(ctx)
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require.NoError(t, err)
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err = snap.Release(ctx)
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 2, 0)
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// prune with parent released does nothing
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buf = pruneResultBuffer()
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err = cm.Prune(ctx, buf.C)
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buf.close()
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 2, 0)
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require.Equal(t, len(buf.all), 0)
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// releasing last reference
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err = snap2.Release(ctx)
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 0, 2)
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buf = pruneResultBuffer()
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err = cm.Prune(ctx, buf.C)
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buf.close()
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require.NoError(t, err)
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checkDiskUsage(ctx, t, cm, 0, 0)
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require.Equal(t, len(buf.all), 2)
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dirs, err = ioutil.ReadDir(filepath.Join(tmpdir, "snapshots/snapshots"))
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require.NoError(t, err)
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require.Equal(t, 0, len(dirs))
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2017-07-14 18:59:31 +00:00
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}
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func TestLazyCommit(t *testing.T) {
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2017-12-09 02:19:08 +00:00
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t.Parallel()
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2017-07-14 18:59:31 +00:00
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ctx := namespaces.WithNamespace(context.Background(), "buildkit-test")
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tmpdir, err := ioutil.TempDir("", "cachemanager")
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require.NoError(t, err)
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defer os.RemoveAll(tmpdir)
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2018-04-03 09:37:16 +00:00
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snapshotter, err := native.NewSnapshotter(filepath.Join(tmpdir, "snapshots"))
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2017-11-06 09:44:23 +00:00
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require.NoError(t, err)
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cm := getCacheManager(t, tmpdir, snapshotter)
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2017-07-14 18:59:31 +00:00
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2017-07-20 22:55:24 +00:00
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active, err := cm.New(ctx, nil, CachePolicyRetain)
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2017-07-14 18:59:31 +00:00
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require.NoError(t, err)
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// after commit mutable is locked
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snap, err := active.Commit(ctx)
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require.NoError(t, err)
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_, err = cm.GetMutable(ctx, active.ID())
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require.Error(t, err)
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require.Equal(t, errLocked, errors.Cause(err))
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// immutable refs still work
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snap2, err := cm.Get(ctx, snap.ID())
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require.NoError(t, err)
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require.Equal(t, snap.ID(), snap2.ID())
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err = snap.Release(ctx)
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require.NoError(t, err)
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err = snap2.Release(ctx)
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require.NoError(t, err)
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// immutable work after final release as well
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snap, err = cm.Get(ctx, snap.ID())
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require.NoError(t, err)
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require.Equal(t, snap.ID(), snap2.ID())
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2017-07-19 23:39:32 +00:00
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// active can't be get while immutable is held
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_, err = cm.GetMutable(ctx, active.ID())
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require.Error(t, err)
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require.Equal(t, errLocked, errors.Cause(err))
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2017-07-14 18:59:31 +00:00
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err = snap.Release(ctx)
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require.NoError(t, err)
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// after release mutable becomes available again
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active2, err := cm.GetMutable(ctx, active.ID())
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require.NoError(t, err)
|
|
|
|
require.Equal(t, active2.ID(), active.ID())
|
|
|
|
|
|
|
|
// because ref was took mutable old immutable are cleared
|
|
|
|
_, err = cm.Get(ctx, snap.ID())
|
|
|
|
require.Error(t, err)
|
|
|
|
require.Equal(t, errNotFound, errors.Cause(err))
|
|
|
|
|
|
|
|
snap, err = active2.Commit(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
// this time finalize commit
|
|
|
|
err = snap.Finalize(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = snap.Release(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
// mutable is gone after finalize
|
|
|
|
_, err = cm.GetMutable(ctx, active2.ID())
|
|
|
|
require.Error(t, err)
|
|
|
|
require.Equal(t, errNotFound, errors.Cause(err))
|
|
|
|
|
|
|
|
// immutable still works
|
|
|
|
snap2, err = cm.Get(ctx, snap.ID())
|
|
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t, snap.ID(), snap2.ID())
|
|
|
|
|
|
|
|
err = snap2.Release(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
// test restarting after commit
|
2017-07-20 22:55:24 +00:00
|
|
|
active, err = cm.New(ctx, nil, CachePolicyRetain)
|
2017-07-14 18:59:31 +00:00
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
// after commit mutable is locked
|
|
|
|
snap, err = active.Commit(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = cm.Close()
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
2017-11-06 09:44:23 +00:00
|
|
|
// we can't close snapshotter and open it twice (especially, its internal boltdb store)
|
|
|
|
cm = getCacheManager(t, tmpdir, snapshotter)
|
2017-07-14 18:59:31 +00:00
|
|
|
|
|
|
|
snap2, err = cm.Get(ctx, snap.ID())
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = snap2.Release(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
active, err = cm.GetMutable(ctx, active.ID())
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
_, err = cm.Get(ctx, snap.ID())
|
|
|
|
require.Error(t, err)
|
|
|
|
require.Equal(t, errNotFound, errors.Cause(err))
|
|
|
|
|
|
|
|
snap, err = active.Commit(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = cm.Close()
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
2017-11-06 09:44:23 +00:00
|
|
|
cm = getCacheManager(t, tmpdir, snapshotter)
|
2017-07-14 18:59:31 +00:00
|
|
|
|
|
|
|
snap2, err = cm.Get(ctx, snap.ID())
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = snap2.Finalize(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
err = snap2.Release(ctx)
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
active, err = cm.GetMutable(ctx, active.ID())
|
|
|
|
require.Error(t, err)
|
|
|
|
require.Equal(t, errNotFound, errors.Cause(err))
|
|
|
|
}
|
|
|
|
|
2017-12-28 07:07:13 +00:00
|
|
|
func getCacheManager(t *testing.T, tmpdir string, snapshotter snapshots.Snapshotter) Manager {
|
2017-07-14 18:59:31 +00:00
|
|
|
md, err := metadata.NewStore(filepath.Join(tmpdir, "metadata.db"))
|
|
|
|
require.NoError(t, err)
|
|
|
|
|
|
|
|
cm, err := NewManager(ManagerOpt{
|
|
|
|
Snapshotter: snapshotter,
|
|
|
|
MetadataStore: md,
|
|
|
|
})
|
|
|
|
require.NoError(t, err, fmt.Sprintf("error: %+v", err))
|
|
|
|
return cm
|
2017-05-26 00:16:32 +00:00
|
|
|
}
|
2017-05-26 21:17:38 +00:00
|
|
|
|
2017-11-17 02:09:35 +00:00
|
|
|
func checkDiskUsage(ctx context.Context, t *testing.T, cm Manager, inuse, unused int) {
|
2017-07-25 22:14:46 +00:00
|
|
|
du, err := cm.DiskUsage(ctx, client.DiskUsageInfo{})
|
2017-07-14 18:59:31 +00:00
|
|
|
require.NoError(t, err)
|
2017-05-26 21:17:38 +00:00
|
|
|
var inuseActual, unusedActual int
|
|
|
|
for _, r := range du {
|
|
|
|
if r.InUse {
|
|
|
|
inuseActual++
|
|
|
|
} else {
|
|
|
|
unusedActual++
|
|
|
|
}
|
|
|
|
}
|
2017-07-14 18:59:31 +00:00
|
|
|
require.Equal(t, inuse, inuseActual)
|
|
|
|
require.Equal(t, unused, unusedActual)
|
2017-05-26 21:17:38 +00:00
|
|
|
}
|
2017-12-27 01:22:50 +00:00
|
|
|
|
|
|
|
func pruneResultBuffer() *buf {
|
|
|
|
b := &buf{C: make(chan client.UsageInfo), closed: make(chan struct{})}
|
|
|
|
go func() {
|
|
|
|
for c := range b.C {
|
|
|
|
b.all = append(b.all, c)
|
|
|
|
}
|
|
|
|
close(b.closed)
|
|
|
|
}()
|
|
|
|
return b
|
|
|
|
}
|
|
|
|
|
|
|
|
type buf struct {
|
|
|
|
C chan client.UsageInfo
|
|
|
|
closed chan struct{}
|
|
|
|
all []client.UsageInfo
|
|
|
|
}
|
|
|
|
|
|
|
|
func (b *buf) close() {
|
|
|
|
close(b.C)
|
|
|
|
<-b.closed
|
|
|
|
}
|