mirror of
https://github.com/netbirdio/netbird.git
synced 2025-08-02 20:49:17 +02:00
c02e236196
adds NetFlow functionality to track and log network traffic information between peers, with features including: - Flow logging for TCP, UDP, and ICMP traffic - Integration with connection tracking system - Resource ID tracking in NetFlow events - DNS and exit node collection configuration - Flow API and Redis cache in management - Memory-based flow storage implementation - Kernel conntrack counters and userspace counters - TCP state machine improvements for more accurate tracking - Migration from net.IP to netip.Addr in the userspace firewall
51 lines
1.6 KiB
Go
51 lines
1.6 KiB
Go
package cache
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import (
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"context"
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"fmt"
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"os"
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"time"
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"github.com/eko/gocache/lib/v4/store"
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gocache_store "github.com/eko/gocache/store/go_cache/v4"
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redis_store "github.com/eko/gocache/store/redis/v4"
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gocache "github.com/patrickmn/go-cache"
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"github.com/redis/go-redis/v9"
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)
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// RedisStoreEnvVar is the environment variable that determines if a redis store should be used.
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// The value should follow redis URL format. https://github.com/redis/redis-specifications/blob/master/uri/redis.txt
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const RedisStoreEnvVar = "NB_IDP_CACHE_REDIS_ADDRESS"
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// NewStore creates a new cache store with the given max timeout and cleanup interval. It checks for the environment Variable RedisStoreEnvVar
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// to determine if a redis store should be used. If the environment variable is set, it will attempt to connect to the redis store.
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func NewStore(maxTimeout, cleanupInterval time.Duration) (store.StoreInterface, error) {
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redisAddr := os.Getenv(RedisStoreEnvVar)
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if redisAddr != "" {
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return getRedisStore(redisAddr)
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}
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goc := gocache.New(maxTimeout, cleanupInterval)
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return gocache_store.NewGoCache(goc), nil
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}
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func getRedisStore(redisEnvAddr string) (store.StoreInterface, error) {
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options, err := redis.ParseURL(redisEnvAddr)
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if err != nil {
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return nil, fmt.Errorf("parsing redis cache url: %s", err)
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}
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options.MaxIdleConns = 6
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options.MinIdleConns = 3
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options.MaxActiveConns = 100
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redisClient := redis.NewClient(options)
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ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
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defer cancel()
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_, err = redisClient.Ping(ctx).Result()
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if err != nil {
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return nil, err
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}
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return redis_store.NewRedis(redisClient), nil
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}
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