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…e#1194) * Add script to backfill Redis from Rekor (sigstore#1163) * Add script to backfill Redis from Rekor Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * Address comments Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * Fix bugs in script Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * Clean up, change flag name Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * Add value removal before upload, print all errors Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * Remove intoto 0.0.2 from backfill Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> * add backfill-redis to the release Signed-off-by: cpanato <ctadeu@gmail.com> * add version information for backfill-redis Signed-off-by: cpanato <ctadeu@gmail.com> Signed-off-by: Hayden Blauzvern <hblauzvern@google.com> Signed-off-by: cpanato <ctadeu@gmail.com> Co-authored-by: cpanato <ctadeu@gmail.com>
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// Copyright 2022 The Sigstore 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. | ||
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/* | ||
backfill-redis is a script to populate the Redis index with entries | ||
from Rekor. This is sometimes necessary because Redis caching is best | ||
effort. If Redis returns an error, Rekor will not, and so sometimes | ||
we need to backfill missing entries into Redis for the search API. | ||
To run: | ||
go run cmd/backfill-redis/main.go --rekor-address <address> \ | ||
--hostname <redis-hostname> --port <redis-port> | ||
--start <first index to backfill> --end <last index to backfill> | ||
*/ | ||
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package main | ||
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import ( | ||
"bytes" | ||
"context" | ||
"encoding/base64" | ||
"flag" | ||
"fmt" | ||
"log" | ||
"os" | ||
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"github.com/go-openapi/runtime" | ||
radix "github.com/mediocregopher/radix/v4" | ||
"sigs.k8s.io/release-utils/version" | ||
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"github.com/sigstore/rekor/pkg/client" | ||
"github.com/sigstore/rekor/pkg/generated/client/entries" | ||
"github.com/sigstore/rekor/pkg/generated/models" | ||
"github.com/sigstore/rekor/pkg/types" | ||
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// these imports are to call the packages' init methods | ||
_ "github.com/sigstore/rekor/pkg/types/alpine/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/cose/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/hashedrekord/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/helm/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/intoto/v0.0.1" | ||
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// remove 0.0.2 intoto type due to bugs | ||
// _ "github.com/sigstore/rekor/pkg/types/intoto/v0.0.2" | ||
_ "github.com/sigstore/rekor/pkg/types/jar/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/rekord/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/rfc3161/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/rpm/v0.0.1" | ||
_ "github.com/sigstore/rekor/pkg/types/tuf/v0.0.1" | ||
) | ||
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var ( | ||
redisHostname = flag.String("hostname", "", "Hostname for Redis application") | ||
redisPort = flag.String("port", "", "Port to Redis application") | ||
startIndex = flag.Int("start", -1, "First index to backfill") | ||
endIndex = flag.Int("end", -1, "Last index to backfill") | ||
rekorAddress = flag.String("rekor-address", "", "Address for Rekor, e.g. https://rekor.sigstore.dev") | ||
versionFlag = flag.Bool("version", false, "Print the current version of Backfill Redis") | ||
) | ||
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func main() { | ||
flag.Parse() | ||
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versionInfo := version.GetVersionInfo() | ||
if *versionFlag { | ||
fmt.Println(versionInfo.String()) | ||
os.Exit(0) | ||
} | ||
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if *redisHostname == "" { | ||
log.Fatal("address must be set") | ||
} | ||
if *redisPort == "" { | ||
log.Fatal("port must be set") | ||
} | ||
if *startIndex == -1 { | ||
log.Fatal("start must be set to >=0") | ||
} | ||
if *endIndex == -1 { | ||
log.Fatal("end must be set to >=0") | ||
} | ||
if *rekorAddress == "" { | ||
log.Fatal("rekor-address must be set") | ||
} | ||
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log.Printf("running backfill redis Version: %s GitCommit: %s BuildDate: %s", versionInfo.GitVersion, versionInfo.GitCommit, versionInfo.BuildDate) | ||
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cfg := radix.PoolConfig{} | ||
redisClient, err := cfg.New(context.Background(), "tcp", fmt.Sprintf("%s:%s", *redisHostname, *redisPort)) | ||
if err != nil { | ||
log.Fatal(err) | ||
} | ||
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rekorClient, err := client.GetRekorClient(*rekorAddress) | ||
if err != nil { | ||
log.Fatalf("creating rekor client: %v", err) | ||
} | ||
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for i := *startIndex; i <= *endIndex; i++ { | ||
params := entries.NewGetLogEntryByIndexParamsWithContext(context.Background()) | ||
params.SetLogIndex(int64(i)) | ||
resp, err := rekorClient.Entries.GetLogEntryByIndex(params) | ||
if err != nil { | ||
log.Fatalf("retrieving log uuid by index: %v", err) | ||
} | ||
var insertErrs []error | ||
for uuid, entry := range resp.Payload { | ||
// uuid is the global UUID - tree ID and entry UUID | ||
e, _, _, err := unmarshalEntryImpl(entry.Body.(string)) | ||
if err != nil { | ||
insertErrs = append(insertErrs, fmt.Errorf("error unmarshalling entry for %s: %v", uuid, err)) | ||
continue | ||
} | ||
keys, err := e.IndexKeys() | ||
if err != nil { | ||
insertErrs = append(insertErrs, fmt.Errorf("error building index keys for %s: %v", uuid, err)) | ||
continue | ||
} | ||
for _, key := range keys { | ||
// remove the key-value pair from the index in case it already exists | ||
if err := removeFromIndex(context.Background(), redisClient, key, uuid); err != nil { | ||
insertErrs = append(insertErrs, fmt.Errorf("error removing UUID %s with key %s: %v", uuid, key, err)) | ||
} | ||
if err := addToIndex(context.Background(), redisClient, key, uuid); err != nil { | ||
insertErrs = append(insertErrs, fmt.Errorf("error inserting UUID %s with key %s: %v", uuid, key, err)) | ||
} | ||
fmt.Printf("Uploaded Redis entry %s, index %d, key %s\n", uuid, i, key) | ||
} | ||
} | ||
if len(insertErrs) != 0 { | ||
fmt.Printf("Errors with log index %d:\n", i) | ||
for _, e := range insertErrs { | ||
fmt.Println(e) | ||
} | ||
} else { | ||
fmt.Printf("Completed log index %d\n", i) | ||
} | ||
} | ||
} | ||
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// unmarshalEntryImpl decodes the base64-encoded entry to a specific entry type (types.EntryImpl). | ||
// Taken from Cosign | ||
func unmarshalEntryImpl(e string) (types.EntryImpl, string, string, error) { | ||
b, err := base64.StdEncoding.DecodeString(e) | ||
if err != nil { | ||
return nil, "", "", err | ||
} | ||
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pe, err := models.UnmarshalProposedEntry(bytes.NewReader(b), runtime.JSONConsumer()) | ||
if err != nil { | ||
return nil, "", "", err | ||
} | ||
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entry, err := types.UnmarshalEntry(pe) | ||
if err != nil { | ||
return nil, "", "", err | ||
} | ||
return entry, pe.Kind(), entry.APIVersion(), nil | ||
} | ||
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// removeFromIndex removes all occurrences of a value from a given key. This guards against | ||
// multiple invocations of backfilling creating duplicates. | ||
func removeFromIndex(ctx context.Context, redisClient radix.Client, key, value string) error { | ||
return redisClient.Do(ctx, radix.Cmd(nil, "LREM", key, "0", value)) | ||
} | ||
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// addToIndex pushes a value onto a key of type list. | ||
func addToIndex(ctx context.Context, redisClient radix.Client, key, value string) error { | ||
return redisClient.Do(ctx, radix.Cmd(nil, "LPUSH", key, value)) | ||
} |
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