diff --git a/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/keycloak-env.sh b/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/keycloak-env.sh
index bb46956940cb..c1ababe0b27c 100644
--- a/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/keycloak-env.sh
+++ b/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/keycloak-env.sh
@@ -151,6 +151,7 @@ export KEYCLOAK_ROOT_LOG_LEVEL="${KEYCLOAK_ROOT_LOG_LEVEL:-INFO}"
 export KEYCLOAK_PROXY="${KEYCLOAK_PROXY:-passthrough}"
 export KEYCLOAK_PRODUCTION="${KEYCLOAK_PRODUCTION:-false}"
 export KEYCLOAK_EXTRA_ARGS_PREPENDED="${KEYCLOAK_EXTRA_ARGS_PREPENDED:-}"
+export KEYCLOAK_DATABASE_VENDOR="${KEYCLOAK_DATABASE_VENDOR:-postgresql}"
 KEYCLOAK_DATABASE_HOST="${KEYCLOAK_DATABASE_HOST:-"${DB_ADDR:-}"}"
 export KEYCLOAK_DATABASE_HOST="${KEYCLOAK_DATABASE_HOST:-postgresql}"
 KEYCLOAK_DATABASE_PORT="${KEYCLOAK_DATABASE_PORT:-"${DB_PORT:-}"}"
diff --git a/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/libkeycloak.sh b/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/libkeycloak.sh
index 17c85a1f4124..1e0e4cbf9c94 100644
--- a/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/libkeycloak.sh
+++ b/bitnami/keycloak/20/debian-11/rootfs/opt/bitnami/scripts/libkeycloak.sh
@@ -132,10 +132,14 @@ keycloak_configure_database() {
     jdbc_params="$(echo "$KEYCLOAK_JDBC_PARAMS" | sed -E '/^$|^\&.+$/!s/^/\&/;s/\&/\\&/g')"
 
     info "Configuring database settings"
-    keycloak_conf_set "db" "postgres"
-    keycloak_conf_set "db-username" "$KEYCLOAK_DATABASE_USER"
-    keycloak_conf_set "db-password" "$KEYCLOAK_DATABASE_PASSWORD"
-    keycloak_conf_set "db-url" "jdbc:postgresql://${KEYCLOAK_DATABASE_HOST}:${KEYCLOAK_DATABASE_PORT}/${KEYCLOAK_DATABASE_NAME}?currentSchema=${KEYCLOAK_DATABASE_SCHEMA}${jdbc_params}"
+    if [[ "KEYCLOAK_DATABASE_VENDOR" == "postgresql" ]]; then
+        keycloak_conf_set "db" "postgres"
+        keycloak_conf_set "db-username" "$KEYCLOAK_DATABASE_USER"
+        keycloak_conf_set "db-password" "$KEYCLOAK_DATABASE_PASSWORD"
+        keycloak_conf_set "db-url" "jdbc:postgresql://${KEYCLOAK_DATABASE_HOST}:${KEYCLOAK_DATABASE_PORT}/${KEYCLOAK_DATABASE_NAME}?currentSchema=${KEYCLOAK_DATABASE_SCHEMA}${jdbc_params}"
+    else
+        keycloak_conf_set "db" "$KEYCLOAK_DATABASE_VENDOR"
+    fi
 }
 
 ########################
@@ -276,17 +280,19 @@ keycloak_configure_spi_tls() {
 #########################
 keycloak_initialize() {
     # Clean to avoid issues when running docker restart
-    # Wait for database
-    info "Trying to connect to PostgreSQL server $KEYCLOAK_DATABASE_HOST..."
-    if ! retry_while "wait-for-port --host $KEYCLOAK_DATABASE_HOST --timeout 10 $KEYCLOAK_DATABASE_PORT" "$KEYCLOAK_INIT_MAX_RETRIES"; then
-        error "Unable to connect to host $KEYCLOAK_DATABASE_HOST"
-        exit 1
-    else
-        info "Found PostgreSQL server listening at $KEYCLOAK_DATABASE_HOST:$KEYCLOAK_DATABASE_PORT"
-    fi
+    if [[ "KEYCLOAK_DATABASE_VENDOR" == "postgresql" ]]; then
+      # Wait for database
+      info "Trying to connect to PostgreSQL server $KEYCLOAK_DATABASE_HOST..."
+      if ! retry_while "wait-for-port --host $KEYCLOAK_DATABASE_HOST --timeout 10 $KEYCLOAK_DATABASE_PORT" "$KEYCLOAK_INIT_MAX_RETRIES"; then
+          error "Unable to connect to host $KEYCLOAK_DATABASE_HOST"
+          exit 1
+      else
+          info "Found PostgreSQL server listening at $KEYCLOAK_DATABASE_HOST:$KEYCLOAK_DATABASE_PORT"
+      fi
 
-    if ! is_dir_empty "$KEYCLOAK_MOUNTED_CONF_DIR"; then
-        cp -Lr "$KEYCLOAK_MOUNTED_CONF_DIR"/* "$KEYCLOAK_CONF_DIR"
+      if ! is_dir_empty "$KEYCLOAK_MOUNTED_CONF_DIR"; then
+          cp -Lr "$KEYCLOAK_MOUNTED_CONF_DIR"/* "$KEYCLOAK_CONF_DIR"
+      fi
     fi
     keycloak_configure_database
     keycloak_configure_metrics
diff --git a/bitnami/keycloak/README.md b/bitnami/keycloak/README.md
index ffe65e5dc3b7..4f1c78541515 100644
--- a/bitnami/keycloak/README.md
+++ b/bitnami/keycloak/README.md
@@ -82,7 +82,13 @@ The Bitnami Keycloak container can create a default admin user by setting the fo
 * `KEYCLOAK_MANAGEMENT_USER`: WildFly default management user. Default: **manager**.
 * `KEYCLOAK_MANAGEMENT_PASSWORD`: WildFly default management password. Default: **bitnami1**.
 
-### Connecting to a PostgreSQL database
+### Connecting to a database
+
+The Bitnami Keycloak container can connect to a database by setting the following environment variables:
+
+- `KEYCLOAK_DATABASE_VENDOR`: Database vendor. Default: **postgres**. Use **dev-mem** or **dev-file** to use an in-memory or file-based database for development purposes.
+
+### PostgreSQL database connection configuration
 
 The Bitnami Keycloak container requires a PostgreSQL database to work. This is configured with the following environment variables: