mirror of
https://github.com/googleapis/genai-toolbox.git
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52ebb431b7
Fixes a bug introduced in #43 where postgres-tool didn't think any of the sources were valid. The root cause of the bug was inconsistent usage of pointer/value in the receiver functions. The fix updates everything to consistently use a pointer receiver function.
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// Copyright 2024 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cloudsqlpg
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import (
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"context"
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"fmt"
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"net"
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"cloud.google.com/go/cloudsqlconn"
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"github.com/googleapis/genai-toolbox/internal/sources"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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const SourceKind string = "cloud-sql-postgres"
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// validate interface
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var _ sources.SourceConfig = Config{}
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type Config struct {
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Project string `yaml:"project"`
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Region string `yaml:"region"`
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Instance string `yaml:"instance"`
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User string `yaml:"user"`
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Password string `yaml:"password"`
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Database string `yaml:"database"`
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}
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func (r Config) SourceConfigKind() string {
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return SourceKind
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}
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func (r Config) Initialize() (sources.Source, error) {
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pool, err := initCloudSQLPgConnectionPool(r.Project, r.Region, r.Instance, r.User, r.Password, r.Database)
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if err != nil {
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return nil, fmt.Errorf("unable to create pool: %w", err)
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}
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err = pool.Ping(context.Background())
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if err != nil {
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return nil, fmt.Errorf("unable to connect successfully: %w", err)
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}
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s := &Source{
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Name: r.Name,
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Kind: SourceKind,
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Pool: pool,
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}
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return s, nil
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}
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var _ sources.Source = &Source{}
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type Source struct {
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Pool *pgxpool.Pool
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}
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func (s *Source) SourceKind() string {
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return SourceKind
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}
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func (s *Source) PostgresPool() *pgxpool.Pool {
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return s.Pool
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}
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func initCloudSQLPgConnectionPool(project, region, instance, user, pass, dbname string) (*pgxpool.Pool, error) {
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// Configure the driver to connect to the database
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dsn := fmt.Sprintf("user=%s password=%s dbname=%s sslmode=disable", user, pass, dbname)
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config, err := pgxpool.ParseConfig(dsn)
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if err != nil {
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return nil, fmt.Errorf("unable to parse connection uri: %w", err)
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}
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// Create a new dialer with any options
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d, err := cloudsqlconn.NewDialer(context.Background())
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if err != nil {
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return nil, fmt.Errorf("unable to parse connection uri: %w", err)
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}
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// Tell the driver to use the Cloud SQL Go Connector to create connections
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i := fmt.Sprintf("%s:%s:%s", project, region, instance)
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config.ConnConfig.DialFunc = func(ctx context.Context, _ string, instance string) (net.Conn, error) {
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return d.Dial(ctx, i)
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}
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// Interact with the driver directly as you normally would
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pool, err := pgxpool.NewWithConfig(context.Background(), config)
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if err != nil {
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return nil, err
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}
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return pool, nil
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}
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