prometheus/util/teststorage/storage.go

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// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package teststorage
import (
"os"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb"
"github.com/prometheus/prometheus/util/testutil"
)
// New returns a new TestStorage for testing purposes
// that removes all associated files on closing.
func New(t testutil.T) *TestStorage {
dir, err := os.MkdirTemp("", "test_storage")
require.NoError(t, err, "unexpected error while opening test directory")
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// Tests just load data for a series sequentially. Thus we
// need a long appendable window.
opts := tsdb.DefaultOptions()
opts.MinBlockDuration = int64(24 * time.Hour / time.Millisecond)
opts.MaxBlockDuration = int64(24 * time.Hour / time.Millisecond)
opts.RetentionDuration = 0
React UI: Add Starting Screen (#8662) * Added walreplay API endpoint Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added starting page to react-ui Signed-off-by: Levi Harrison <git@leviharrison.dev> * Documented the new endpoint Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed typos Signed-off-by: Levi Harrison <git@leviharrison.dev> Co-authored-by: Julius Volz <julius.volz@gmail.com> * Removed logo Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed isResponding to isUnexpected Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed width of progress bar Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed width of progress bar Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added DB stats object Signed-off-by: Levi Harrison <git@leviharrison.dev> * Updated starting page to work with new fields Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 2) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 3) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (and also implementing a method this time) (pt. 4) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (and also implementing a method this time) (pt. 5) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed const to let Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 6) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Remove SetStats method Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added comma Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed api Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed to triple equals Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed data response types Signed-off-by: Levi Harrison <git@leviharrison.dev> * Don't return pointer Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed version Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed interface issue Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed pointer Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed copying lock value error Signed-off-by: Levi Harrison <git@leviharrison.dev> Co-authored-by: Julius Volz <julius.volz@gmail.com>
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db, err := tsdb.Open(dir, nil, nil, opts, tsdb.NewDBStats())
require.NoError(t, err, "unexpected error while opening test storage")
reg := prometheus.NewRegistry()
eMetrics := tsdb.NewExemplarMetrics(reg)
es, err := tsdb.NewCircularExemplarStorage(10, eMetrics)
require.NoError(t, err, "unexpected error while opening test exemplar storage")
return &TestStorage{DB: db, exemplarStorage: es, dir: dir}
}
type TestStorage struct {
*tsdb.DB
exemplarStorage tsdb.ExemplarStorage
dir string
}
func (s TestStorage) Close() error {
if err := s.DB.Close(); err != nil {
return err
}
return os.RemoveAll(s.dir)
}
func (s TestStorage) ExemplarAppender() storage.ExemplarAppender {
return s
}
func (s TestStorage) ExemplarQueryable() storage.ExemplarQueryable {
return s.exemplarStorage
}
func (s TestStorage) AppendExemplar(ref storage.SeriesRef, l labels.Labels, e exemplar.Exemplar) (storage.SeriesRef, error) {
return ref, s.exemplarStorage.AddExemplar(l, e)
}