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Add a bare-bones outline of MySQL-based example personality and storage
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| # Please keep the list sorted. | ||
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| Al Cutter <[email protected]> <[email protected]> | ||
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| Roger Ng <[email protected]> <[email protected]> | ||
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| // Copyright 2024 The Tessera authors. All Rights Reserved. | ||
| // | ||
| // 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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| // example-mysql is a simple personality showing how to use the Tessera MySQL storage implmentation. | ||
| package main | ||
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| import ( | ||
| "crypto/sha256" | ||
| "database/sql" | ||
| "flag" | ||
| "io" | ||
| "net/http" | ||
| "time" | ||
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| tessera "github.com/transparency-dev/trillian-tessera" | ||
| "github.com/transparency-dev/trillian-tessera/storage/mysql" | ||
| "k8s.io/klog/v2" | ||
| ) | ||
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| var ( | ||
| mysqlURI = flag.String("mysql_uri", "user:password@tcp(db:3306)/tessera", "Connection string for a MySQL database") | ||
| dbConnMaxLifetime = flag.Duration("db_conn_max_lifetime", 3*time.Minute, "") | ||
| dbMaxOpenConns = flag.Int("db_max_open_conns", 64, "") | ||
| dbMaxIdleConns = flag.Int("db_max_idle_conns", 64, "") | ||
| listen = flag.String("listen", ":2024", "Address:port to listen on") | ||
| ) | ||
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| func main() { | ||
| klog.InitFlags(nil) | ||
| flag.Parse() | ||
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| db, err := sql.Open("mysql", *mysqlURI) | ||
| if err != nil { | ||
| klog.Exitf("Failed to connect to DB: %v", err) | ||
| } | ||
| db.SetConnMaxLifetime(*dbConnMaxLifetime) | ||
| db.SetMaxOpenConns(*dbMaxOpenConns) | ||
| db.SetMaxIdleConns(*dbMaxIdleConns) | ||
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| _, err = mysql.New(db) | ||
| if err != nil { | ||
| klog.Exitf("Failed to create new MySQL storage: %v", err) | ||
| } | ||
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| http.HandleFunc("POST /add", func(w http.ResponseWriter, r *http.Request) { | ||
| b, err := io.ReadAll(r.Body) | ||
| if err != nil { | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
| defer r.Body.Close() | ||
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| id := sha256.Sum256(b) | ||
| _ = tessera.NewEntry(b, tessera.WithIdentity(id[:])) | ||
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| // TODO: Add entry to log and return assigned index. | ||
| }) | ||
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| if err := http.ListenAndServe(*listen, http.DefaultServeMux); err != nil { | ||
| klog.Exitf("ListenAndServe: %v", err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // Copyright 2024 The Tessera authors. All Rights Reserved. | ||
| // | ||
| // 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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| // Package mysql contains a MySQL-based storage implementation for Tessera. | ||
| package mysql | ||
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| import ( | ||
| "database/sql" | ||
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| _ "github.com/go-sql-driver/mysql" | ||
| "k8s.io/klog/v2" | ||
| ) | ||
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| // Storage is a MySQL-based storage implementation for Tessera. | ||
| type Storage struct { | ||
| db *sql.DB | ||
| } | ||
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| // New creates a new instance of the MySQL-based Storage. | ||
| func New(db *sql.DB) (*Storage, error) { | ||
| s := &Storage{ | ||
| db: db, | ||
| } | ||
| if err := s.db.Ping(); err != nil { | ||
| klog.Exitf("Failed to ping database: %v", err) | ||
| } | ||
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| return s, nil | ||
| } |