diff --git a/.gitignore b/.gitignore
index bee8a64..82b2a9d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 __pycache__
+app/app.log
+app/chroma.log
diff --git a/docker-compose-base.yaml b/docker-compose-base.yaml
index dd45ab2..6fa6d89 100644
--- a/docker-compose-base.yaml
+++ b/docker-compose-base.yaml
@@ -8,7 +8,7 @@ services:
       - ./dataset:/dataset  # 将宿主机的data目录挂载到容器内的/app/dataset
       - ./chroma_db:/chroma_db      # 将宿主机的model目录挂载到容器内的/app/model
     working_dir: /app       # 设置工作目录
-    command: ["./wait-for-it.sh", "chroma:8000", "--", "python", "app.py"]  # 启动后端服务并等待 Chroma 服务
+    # command: ["wait-for-it", "chroma:8000", "--", "python", "server.py"]  # 启动后端服务并等待 Chroma 服务
     ports:
       - "8082:8082"  
     environment:
@@ -39,15 +39,17 @@ services:
       - smart_bot_network
 
   chroma:
-      image: python:3.10  
+      build:
+        context: .
+        dockerfile: ./docker/chroma/Dockerfile
       volumes:
         - ./chroma_db:/chroma_db    # 挂载 Chroma 数据库目录
         - ./app:/app                # 挂载应用目录
       working_dir: /app             # 设置工作目录
-      command: >
-        bash -c "
-        pip install langchain_chroma chromadb -i https://pypi.tuna.tsinghua.edu.cn/simple/ &&
-        chroma run --path chroma_db --port 8000 --host 0.0.0.0"  # 启动 Chroma
+      # command: >
+      #   bash -c "
+      #   pip install langchain_chroma chromadb &&
+      #   chroma run --path chroma_db --port 8000 --host 0.0.0.0"  # 启动 Chroma
       ports:
         - "8000:8000"               # 映射 Chroma 服务端口
       networks:
diff --git a/docker/backend/Dockerfile b/docker/backend/Dockerfile
index 5180bd5..5174593 100644
--- a/docker/backend/Dockerfile
+++ b/docker/backend/Dockerfile
@@ -1,18 +1,21 @@
 # 使用 Python 官方镜像
 FROM python:3.10-slim
 
+# 设置工作目录
+WORKDIR /app
+
+# 更新包列表并安装 netcat-openbsd
+RUN apt-get update && apt-get install -y netcat-openbsd && rm -rf /var/lib/apt/lists/*
+
 # 复制 wait-for-it.sh 脚本
-COPY scripts/wait-for-it.sh /usr/local/bin/wait-for-it
+COPY ./scripts/wait-for-it.sh /usr/local/bin/wait-for-it
 
 # 给予执行权限
 RUN chmod +x /usr/local/bin/wait-for-it
 
-# 设置工作目录
-WORKDIR /app
-
 # 复制 requirements.txt 文件并安装依赖
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
+RUN pip install -r requirements.txt
 
 # 复制应用代码
 COPY app/. .
@@ -20,5 +23,5 @@ COPY app/. .
 # 暴露服务端口
 EXPOSE 8082
 
-# # 设置容器启动命令，等待 chroma 服务启动
-# CMD ["wait-for-it", "chroma:8000", "--", "python", "app.py"]
\ No newline at end of file
+# 设置容器启动命令，等待 chroma 服务启动
+CMD ["wait-for-it", "chroma:8000", "--", "python", "server.py"]
\ No newline at end of file
diff --git a/docker/chroma/Dockerfile b/docker/chroma/Dockerfile
new file mode 100644
index 0000000..435e2b6
--- /dev/null
+++ b/docker/chroma/Dockerfile
@@ -0,0 +1,17 @@
+# 使用官方的 Python 3.10 基础镜像
+FROM python:3.10
+
+# 设置工作目录
+WORKDIR /app
+
+# 复制应用代码
+COPY app/. .
+
+# 安装所需的 Python 包
+RUN pip install --no-cache-dir langchain_chroma chromadb
+
+# 暴露 Chroma 服务端口
+EXPOSE 8000
+
+# 运行 Chroma 服务
+CMD ["chroma", "run", "--path", "chroma_db", "--port", "8000", "--host", "0.0.0.0"]
diff --git a/scripts/wait-for-it.sh b/scripts/wait-for-it.sh
index b28d2ae..3974640 100755
--- a/scripts/wait-for-it.sh
+++ b/scripts/wait-for-it.sh
@@ -1,44 +1,182 @@
 #!/usr/bin/env bash
+# Use this script to test if a given TCP host/port are available
 
-# Use this to wait for a service to be available.
-# Usage: wait-for-it.sh host:port [-t timeout] [-- command args]
-# Example: wait-for-it.sh db:5432 -- python my_app.py
-
-TIMEOUT=15
-WAIT_FOR=0
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    -t)
-      TIMEOUT="$2"
-      shift 2
-      ;;
-    *)
-      WAIT_FOR="$1"
-      shift
-      ;;
-  esac
+WAITFORIT_cmdname=${0##*/}
+
+echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
+
+usage()
+{
+    cat << USAGE >&2
+Usage:
+    $WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
+    -h HOST | --host=HOST       Host or IP under test
+    -p PORT | --port=PORT       TCP port under test
+                                Alternatively, you specify the host and port as host:port
+    -s | --strict               Only execute subcommand if the test succeeds
+    -q | --quiet                Don't output any status messages
+    -t TIMEOUT | --timeout=TIMEOUT
+                                Timeout in seconds, zero for no timeout
+    -- COMMAND ARGS             Execute command with args after the test finishes
+USAGE
+    exit 1
+}
+
+wait_for()
+{
+    if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
+        echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
+    else
+        echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
+    fi
+    WAITFORIT_start_ts=$(date +%s)
+    while :
+    do
+        if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
+            nc -z $WAITFORIT_HOST $WAITFORIT_PORT
+            WAITFORIT_result=$?
+        else
+            (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
+            WAITFORIT_result=$?
+        fi
+        if [[ $WAITFORIT_result -eq 0 ]]; then
+            WAITFORIT_end_ts=$(date +%s)
+            echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
+            break
+        fi
+        sleep 1
+    done
+    return $WAITFORIT_result
+}
+
+wait_for_wrapper()
+{
+    # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
+    if [[ $WAITFORIT_QUIET -eq 1 ]]; then
+        timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
+    else
+        timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
+    fi
+    WAITFORIT_PID=$!
+    trap "kill -INT -$WAITFORIT_PID" INT
+    wait $WAITFORIT_PID
+    WAITFORIT_RESULT=$?
+    if [[ $WAITFORIT_RESULT -ne 0 ]]; then
+        echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
+    fi
+    return $WAITFORIT_RESULT
+}
+
+# process arguments
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        *:* )
+        WAITFORIT_hostport=(${1//:/ })
+        WAITFORIT_HOST=${WAITFORIT_hostport[0]}
+        WAITFORIT_PORT=${WAITFORIT_hostport[1]}
+        shift 1
+        ;;
+        --child)
+        WAITFORIT_CHILD=1
+        shift 1
+        ;;
+        -q | --quiet)
+        WAITFORIT_QUIET=1
+        shift 1
+        ;;
+        -s | --strict)
+        WAITFORIT_STRICT=1
+        shift 1
+        ;;
+        -h)
+        WAITFORIT_HOST="$2"
+        if [[ $WAITFORIT_HOST == "" ]]; then break; fi
+        shift 2
+        ;;
+        --host=*)
+        WAITFORIT_HOST="${1#*=}"
+        shift 1
+        ;;
+        -p)
+        WAITFORIT_PORT="$2"
+        if [[ $WAITFORIT_PORT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --port=*)
+        WAITFORIT_PORT="${1#*=}"
+        shift 1
+        ;;
+        -t)
+        WAITFORIT_TIMEOUT="$2"
+        if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --timeout=*)
+        WAITFORIT_TIMEOUT="${1#*=}"
+        shift 1
+        ;;
+        --)
+        shift
+        WAITFORIT_CLI=("$@")
+        break
+        ;;
+        --help)
+        usage
+        ;;
+        *)
+        echoerr "Unknown argument: $1"
+        usage
+        ;;
+    esac
 done
 
-if [[ -z "$WAIT_FOR" ]]; then
-  echo "Usage: wait-for-it.sh host:port [-t timeout] [-- command args]"
-  exit 1
+if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
+    echoerr "Error: you need to provide a host and port to test."
+    usage
 fi
 
-HOST=$(echo "$WAIT_FOR" | cut -d: -f1)
-PORT=$(echo "$WAIT_FOR" | cut -d: -f2)
+WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
+WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
+WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
+WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
 
-# Wait for the host:port to be available
-echo "Waiting for $WAIT_FOR..."
-for ((i=0; i<TIMEOUT; i++)); do
-  nc -z "$HOST" "$PORT" && break
-  sleep 1
-done
+# Check to see if timeout is from busybox?
+WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
+WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
+
+WAITFORIT_BUSYTIMEFLAG=""
+if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
+    WAITFORIT_ISBUSY=1
+    # Check if busybox timeout uses -t flag
+    # (recent Alpine versions don't support -t anymore)
+    if timeout &>/dev/stdout | grep -q -e '-t '; then
+        WAITFORIT_BUSYTIMEFLAG="-t"
+    fi
+else
+    WAITFORIT_ISBUSY=0
+fi
 
-# Check if the service is up
-if ! nc -z "$HOST" "$PORT"; then
-  echo "Timeout waiting for $WAIT_FOR"
-  exit 1
+if [[ $WAITFORIT_CHILD -gt 0 ]]; then
+    wait_for
+    WAITFORIT_RESULT=$?
+    exit $WAITFORIT_RESULT
+else
+    if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
+        wait_for_wrapper
+        WAITFORIT_RESULT=$?
+    else
+        wait_for
+        WAITFORIT_RESULT=$?
+    fi
 fi
 
-echo "$WAIT_FOR is up!"
+if [[ $WAITFORIT_CLI != "" ]]; then
+    if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
+        echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
+        exit $WAITFORIT_RESULT
+    fi
+    exec "${WAITFORIT_CLI[@]}"
+else
+    exit $WAITFORIT_RESULT
+fi
\ No newline at end of file