Add db param to sentinel configurations

Signed-off-by: Shakar Bakr <5h4k4r.b4kr@gmail.com>

docs/docs/configuration/sessions.md

@@ -86,8 +86,7 @@ When using the redis store, specify `--session-store-type=redis` as well as the
 `--redis-connection-url=redis://host[:port][/db-number]`.
 
 You may also configure the store for Redis Sentinel. In this case, you will want to use the
-`--redis-use-sentinel=true` flag, as well as configure the flags `--redis-sentinel-master-name`
-and `--redis-sentinel-connection-urls` appropriately.
+`--redis-use-sentinel=true` flag, as well as configure the flags `--redis-sentinel-master-name`, `--redis-sentinel-db` and `--redis-sentinel-connection-urls` appropriately.
 
 Redis Cluster is available to be the backend store as well. To leverage it, you will need to set the
 `--redis-use-cluster=true` flag, and configure the flags `--redis-cluster-connection-urls` appropriately.

pkg/apis/options/options.go

@@ -151,6 +151,7 @@ func NewFlagSet() *pflag.FlagSet {
 	flagSet.String("redis-username", "", "Redis username. Applicable for Redis configurations where ACL has been configured. Will override any username set in `--redis-connection-url`")
 	flagSet.String("redis-password", "", "Redis password. Applicable for all Redis configurations. Will override any password set in `--redis-connection-url`")
 	flagSet.Bool("redis-use-sentinel", false, "Connect to redis via sentinels. Must set --redis-sentinel-master-name and --redis-sentinel-connection-urls to use this feature")
+	flagSet.Int("redis-sentinel-db", 0, "Redis sentinel database number. Used in conjunction with --redis-use-sentinel")
 	flagSet.String("redis-sentinel-password", "", "Redis sentinel password. Used only for sentinel connection; any redis node passwords need to use `--redis-password`")
 	flagSet.String("redis-sentinel-master-name", "", "Redis sentinel master name. Used in conjunction with --redis-use-sentinel")
 	flagSet.String("redis-ca-path", "", "Redis custom CA path")

pkg/apis/options/sessions.go

@@ -26,6 +26,7 @@ type RedisStoreOptions struct {
 	Username               string   `flag:"redis-username" cfg:"redis_username"`
 	Password               string   `flag:"redis-password" cfg:"redis_password"`
 	UseSentinel            bool     `flag:"redis-use-sentinel" cfg:"redis_use_sentinel"`
+	SentinelDB             int      `flag:"redis-sentinel-db" cfg:"redis_sentinel_db"`
 	SentinelPassword       string   `flag:"redis-sentinel-password" cfg:"redis_sentinel_password"`
 	SentinelMasterName     string   `flag:"redis-sentinel-master-name" cfg:"redis_sentinel_master_name"`
 	SentinelConnectionURLs []string `flag:"redis-sentinel-connection-urls" cfg:"redis_sentinel_connection_urls"`

pkg/sessions/redis/redis_store.go

@@ -119,6 +119,7 @@ func buildSentinelClient(opts options.RedisStoreOptions) (Client, error) {
 		SentinelAddrs:    addrs,
 		SentinelPassword: opts.SentinelPassword,
 		Username:         opts.Username,
+		DB:               opts.SentinelDB,
 		Password:         opts.Password,
 		TLSConfig:        opt.TLSConfig,
 		ConnMaxIdleTime:  time.Duration(opts.IdleTimeout) * time.Second,

pkg/sessions/redis/redis_store_test.go

@@ -93,6 +93,29 @@ var _ = Describe("Redis SessionStore Tests", func() {
 					return nil
 				},
 			)
+
+			Context("with custom sentinel DB", func() {
+				tests.RunSessionStoreTests(
+					func(opts *options.SessionOptions, cookieOpts *options.Cookie) (sessionsapi.SessionStore, error) {
+						// Set the sentinel connection URL with custom DB
+						sentinelAddr := redisProtocol + ms.Addr()
+						opts.Type = options.RedisSessionStoreType
+						opts.Redis.SentinelConnectionURLs = []string{sentinelAddr}
+						opts.Redis.UseSentinel = true
+						opts.Redis.SentinelMasterName = ms.MasterInfo().Name
+						opts.Redis.SentinelDB = 1
+
+						// Capture the session store so that we can close the client
+						var err error
+						ss, err = NewRedisSessionStore(opts, cookieOpts)
+						return ss, err
+					},
+					func(d time.Duration) error {
+						mr.FastForward(d)
+						return nil
+					},
+				)
+			})
 		})
 
 		Context("with cluster", func() {
@@ -170,6 +193,30 @@ var _ = Describe("Redis SessionStore Tests", func() {
 						return nil
 					},
 				)
+
+				Context("with custom sentinel DB and password", func() {
+					tests.RunSessionStoreTests(
+						func(opts *options.SessionOptions, cookieOpts *options.Cookie) (sessionsapi.SessionStore, error) {
+							// Set the sentinel connection URL with custom DB and password
+							sentinelAddr := redisProtocol + ms.Addr()
+							opts.Type = options.RedisSessionStoreType
+							opts.Redis.SentinelConnectionURLs = []string{sentinelAddr}
+							opts.Redis.UseSentinel = true
+							opts.Redis.SentinelMasterName = ms.MasterInfo().Name
+							opts.Redis.Password = redisPassword
+							opts.Redis.SentinelDB = 2
+
+							// Capture the session store so that we can close the client
+							var err error
+							ss, err = NewRedisSessionStore(opts, cookieOpts)
+							return ss, err
+						},
+						func(d time.Duration) error {
+							mr.FastForward(d)
+							return nil
+						},
+					)
+				})
 			})
 
 			Context("with cluster", func() {
@@ -271,4 +318,114 @@ var _ = Describe("Redis SessionStore Tests", func() {
 			Expect(opts).To(BeNil())
 		})
 	})
+
+	Describe("Sentinel DB Configuration", func() {
+		var mr *miniredis.Miniredis
+		var ms *minisentinel.Sentinel
+
+		BeforeEach(func() {
+			var err error
+			mr, err = miniredis.Run()
+			Expect(err).ToNot(HaveOccurred())
+			ms = minisentinel.NewSentinel(mr)
+			Expect(ms.Start()).To(Succeed())
+		})
+
+		AfterEach(func() {
+			mr.Close()
+		})
+
+		It("should use default DB 0 when SentinelDB is not set", func() {
+			opts := options.RedisStoreOptions{
+				SentinelConnectionURLs: []string{"redis://" + ms.Addr()},
+				UseSentinel:            true,
+				SentinelMasterName:     ms.MasterInfo().Name,
+				SentinelDB:             0, // Default value
+			}
+
+			client, err := NewRedisClient(opts)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(client).ToNot(BeNil())
+
+			// Verify we can create a session store successfully
+			sessionStore := &SessionStore{Client: client}
+			Expect(sessionStore).ToNot(BeNil())
+
+			// Clean up
+			if closer, ok := client.(interface{ Close() error }); ok {
+				Expect(closer.Close()).To(Succeed())
+			}
+		})
+
+		It("should use custom SentinelDB value when set", func() {
+			testDB := 5
+			opts := options.RedisStoreOptions{
+				SentinelConnectionURLs: []string{"redis://" + ms.Addr()},
+				UseSentinel:            true,
+				SentinelMasterName:     ms.MasterInfo().Name,
+				SentinelDB:             testDB,
+			}
+
+			client, err := NewRedisClient(opts)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(client).ToNot(BeNil())
+
+			// Verify we can create a session store successfully
+			sessionStore := &SessionStore{Client: client}
+			Expect(sessionStore).ToNot(BeNil())
+
+			// Clean up
+			if closer, ok := client.(interface{ Close() error }); ok {
+				Expect(closer.Close()).To(Succeed())
+			}
+		})
+
+		It("should work with maximum valid DB number", func() {
+			maxDB := 15 // Redis supports DB 0-15 by default
+			opts := options.RedisStoreOptions{
+				SentinelConnectionURLs: []string{"redis://" + ms.Addr()},
+				UseSentinel:            true,
+				SentinelMasterName:     ms.MasterInfo().Name,
+				SentinelDB:             maxDB,
+			}
+
+			client, err := NewRedisClient(opts)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(client).ToNot(BeNil())
+
+			// Verify we can create a session store successfully
+			sessionStore := &SessionStore{Client: client}
+			Expect(sessionStore).ToNot(BeNil())
+
+			// Clean up
+			if closer, ok := client.(interface{ Close() error }); ok {
+				Expect(closer.Close()).To(Succeed())
+			}
+		})
+
+		It("should handle SentinelDB with authentication", func() {
+			testDB := 3
+			testPassword := "test-password"
+			opts := options.RedisStoreOptions{
+				SentinelConnectionURLs: []string{"redis://" + ms.Addr()},
+				UseSentinel:            true,
+				SentinelMasterName:     ms.MasterInfo().Name,
+				SentinelDB:             testDB,
+				Password:               testPassword,
+			}
+
+			client, err := NewRedisClient(opts)
+			Expect(err).ToNot(HaveOccurred())
+			Expect(client).ToNot(BeNil())
+
+			// Verify we can create a session store successfully
+			sessionStore := &SessionStore{Client: client}
+			Expect(sessionStore).ToNot(BeNil())
+
+			// Clean up
+			if closer, ok := client.(interface{ Close() error }); ok {
+				Expect(closer.Close()).To(Succeed())
+			}
+		})
+	})
 })

pkg/validation/sessions_test.go

@@ -346,6 +346,56 @@ var _ = Describe("Sessions", func() {
 			},
 			errStrings: []string{},
 		}),
+		Entry("connect successfully to sentinel redis with custom DB", &redisStoreTableInput{
+			useSentinel:     true,
+			setSentinelAddr: true,
+			setMasterName:   true,
+
+			opts: &options.Options{
+				Session: options.SessionOptions{
+					Type: options.RedisSessionStoreType,
+					Redis: options.RedisStoreOptions{
+						UseSentinel: true,
+						SentinelDB:  1,
+					},
+				},
+			},
+			errStrings: []string{},
+		}),
+		Entry("connect successfully to sentinel redis with custom DB and password", &redisStoreTableInput{
+			password:        "abcdef123",
+			useSentinel:     true,
+			setSentinelAddr: true,
+			setMasterName:   true,
+
+			opts: &options.Options{
+				Session: options.SessionOptions{
+					Type: options.RedisSessionStoreType,
+					Redis: options.RedisStoreOptions{
+						Password:    "abcdef123",
+						UseSentinel: true,
+						SentinelDB:  5,
+					},
+				},
+			},
+			errStrings: []string{},
+		}),
+		Entry("connect successfully to sentinel redis with maximum DB number", &redisStoreTableInput{
+			useSentinel:     true,
+			setSentinelAddr: true,
+			setMasterName:   true,
+
+			opts: &options.Options{
+				Session: options.SessionOptions{
+					Type: options.RedisSessionStoreType,
+					Redis: options.RedisStoreOptions{
+						UseSentinel: true,
+						SentinelDB:  15,
+					},
+				},
+			},
+			errStrings: []string{},
+		}),
 		Entry("failed connection to sentinel redis with wrong password", &redisStoreTableInput{
 			password:        "abcdef123",
 			useSentinel:     true,