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viettranx
0d3230b2bf
Add optional Redis cache support via `go build -tags redis`, following the same paired-stub pattern as OTel and Tailscale. The Cache[V] interface is unchanged; Redis and in-memory implementations are injected at startup without altering usage logic. - Add RedisCache[V] implementation with JSON serialization, fail-open on errors - Add gateway_redis.go / gateway_redis_noop.go paired wiring files - Refactor GroupWriterCache and ContextFileInterceptor to accept injected caches - Add GOCLAW_REDIS_DSN env var, docker-compose.redis.yml overlay - Update Dockerfile and GitHub Actions with ENABLE_REDIS build arg - Add Redis variant to CI matrix (5 variants: latest, otel, tsnet, redis, full)
36 lines
821 B
Go
36 lines
821 B
Go
//go:build redis
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package cache
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import (
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"context"
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"fmt"
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"time"
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"github.com/redis/go-redis/v9"
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)
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// NewRedisClient creates a Redis client from a DSN (e.g. "redis://localhost:6379/0")
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// and verifies connectivity with a PING.
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func NewRedisClient(dsn string) (*redis.Client, error) {
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opts, err := redis.ParseURL(dsn)
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if err != nil {
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return nil, fmt.Errorf("redis: invalid DSN: %w", err)
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}
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opts.PoolSize = 10
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opts.MinIdleConns = 2
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opts.DialTimeout = 5 * time.Second
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opts.ReadTimeout = 3 * time.Second
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opts.WriteTimeout = 3 * time.Second
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client := redis.NewClient(opts)
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := client.Ping(ctx).Err(); err != nil {
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client.Close()
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return nil, fmt.Errorf("redis: ping failed: %w", err)
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}
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return client, nil
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}
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