diff --git a/video_worker/.env.center.example b/video_worker/.env.center.example
index 1e429cf..1ddb42e 100644
--- a/video_worker/.env.center.example
+++ b/video_worker/.env.center.example
@@ -2,6 +2,15 @@
 EDGE_DISPATCH_HOST=0.0.0.0
 EDGE_DISPATCH_PORT=8060
 EDGE_MAX_DISPATCH_RECORDS=2000
+PYTHON_IMAGE=docker.m.daocloud.io/library/python:3.10-slim
+APT_MIRROR=mirrors.aliyun.com
+PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple/
+PIP_TRUSTED_HOST=mirrors.aliyun.com
+AUTO_PULL_LATEST=false
+GIT_REPO_URL=
+GIT_BRANCH=master
+GIT_CLONE_DEPTH=1
+GIT_PROJECT_SUBDIR=video_worker
 
 # OSS (required in production)
 OSS_ENABLED=true
diff --git a/video_worker/.env.example b/video_worker/.env.example
index 3c8a60f..4619ab6 100644
--- a/video_worker/.env.example
+++ b/video_worker/.env.example
@@ -7,6 +7,15 @@ WS_POLL_INTERVAL_SEC=1.0
 EDGE_DISPATCH_HOST=0.0.0.0
 EDGE_DISPATCH_PORT=8020
 EDGE_MAX_DISPATCH_RECORDS=2000
+PYTHON_IMAGE=docker.m.daocloud.io/library/python:3.10-slim
+APT_MIRROR=mirrors.aliyun.com
+PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple/
+PIP_TRUSTED_HOST=mirrors.aliyun.com
+AUTO_PULL_LATEST=false
+GIT_REPO_URL=
+GIT_BRANCH=master
+GIT_CLONE_DEPTH=1
+GIT_PROJECT_SUBDIR=video_worker
 OSS_ENABLED=false
 OSS_ENDPOINT=https://oss-cn-shanghai.aliyuncs.com
 OSS_BUCKET=aiclw
diff --git a/video_worker/docker-compose.center-dispatch.yml b/video_worker/docker-compose.center-dispatch.yml
index a12b069..23ef8ca 100644
--- a/video_worker/docker-compose.center-dispatch.yml
+++ b/video_worker/docker-compose.center-dispatch.yml
@@ -4,10 +4,15 @@ services:
       context: .
       dockerfile: docker/edge-dispatch/Dockerfile
       args:
-        PYTHON_IMAGE: registry.cn-hangzhou.aliyuncs.com/library/python:3.10-slim
-        APT_MIRROR: mirrors.aliyun.com
-        PIP_INDEX_URL: https://mirrors.aliyun.com/pypi/simple/
-        PIP_TRUSTED_HOST: mirrors.aliyun.com
+        PYTHON_IMAGE: ${PYTHON_IMAGE:-docker.m.daocloud.io/library/python:3.10-slim}
+        APT_MIRROR: ${APT_MIRROR:-mirrors.aliyun.com}
+        PIP_INDEX_URL: ${PIP_INDEX_URL:-https://mirrors.aliyun.com/pypi/simple/}
+        PIP_TRUSTED_HOST: ${PIP_TRUSTED_HOST:-mirrors.aliyun.com}
+        AUTO_PULL_LATEST: ${AUTO_PULL_LATEST:-false}
+        GIT_REPO_URL: ${GIT_REPO_URL:-}
+        GIT_BRANCH: ${GIT_BRANCH:-master}
+        GIT_CLONE_DEPTH: ${GIT_CLONE_DEPTH:-1}
+        GIT_PROJECT_SUBDIR: ${GIT_PROJECT_SUBDIR:-video_worker}
     container_name: video-worker-center-dispatch
     env_file:
       - .env.center
diff --git a/video_worker/docker-compose.edge-dispatch.yml b/video_worker/docker-compose.edge-dispatch.yml
index dc82e00..1e90e2a 100644
--- a/video_worker/docker-compose.edge-dispatch.yml
+++ b/video_worker/docker-compose.edge-dispatch.yml
@@ -4,10 +4,15 @@ services:
       context: .
       dockerfile: docker/edge-dispatch/Dockerfile
       args:
-        PYTHON_IMAGE: registry.cn-hangzhou.aliyuncs.com/library/python:3.10-slim
-        APT_MIRROR: mirrors.aliyun.com
-        PIP_INDEX_URL: https://mirrors.aliyun.com/pypi/simple/
-        PIP_TRUSTED_HOST: mirrors.aliyun.com
+        PYTHON_IMAGE: ${PYTHON_IMAGE:-docker.m.daocloud.io/library/python:3.10-slim}
+        APT_MIRROR: ${APT_MIRROR:-mirrors.aliyun.com}
+        PIP_INDEX_URL: ${PIP_INDEX_URL:-https://mirrors.aliyun.com/pypi/simple/}
+        PIP_TRUSTED_HOST: ${PIP_TRUSTED_HOST:-mirrors.aliyun.com}
+        AUTO_PULL_LATEST: ${AUTO_PULL_LATEST:-false}
+        GIT_REPO_URL: ${GIT_REPO_URL:-}
+        GIT_BRANCH: ${GIT_BRANCH:-master}
+        GIT_CLONE_DEPTH: ${GIT_CLONE_DEPTH:-1}
+        GIT_PROJECT_SUBDIR: ${GIT_PROJECT_SUBDIR:-video_worker}
     container_name: edge-dispatch-service
     env_file:
       - .env
diff --git a/video_worker/docker/edge-dispatch/Dockerfile b/video_worker/docker/edge-dispatch/Dockerfile
index 1b4b720..f693634 100644
--- a/video_worker/docker/edge-dispatch/Dockerfile
+++ b/video_worker/docker/edge-dispatch/Dockerfile
@@ -1,4 +1,4 @@
-ARG PYTHON_IMAGE=registry.cn-hangzhou.aliyuncs.com/library/python:3.10-slim
+ARG PYTHON_IMAGE=docker.m.daocloud.io/library/python:3.10-slim
 FROM ${PYTHON_IMAGE}
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
@@ -9,19 +9,38 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
 ARG APT_MIRROR=mirrors.aliyun.com
 ARG PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple/
 ARG PIP_TRUSTED_HOST=mirrors.aliyun.com
+ARG AUTO_PULL_LATEST=false
+ARG GIT_REPO_URL=
+ARG GIT_BRANCH=master
+ARG GIT_CLONE_DEPTH=1
+ARG GIT_PROJECT_SUBDIR=video_worker
 
 RUN sed -i "s@deb.debian.org@${APT_MIRROR}@g" /etc/apt/sources.list.d/debian.sources \
-    && sed -i "s@security.debian.org@${APT_MIRROR}@g" /etc/apt/sources.list.d/debian.sources
+    && sed -i "s@security.debian.org@${APT_MIRROR}@g" /etc/apt/sources.list.d/debian.sources \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends git ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-COPY requirements.txt /app/requirements.txt
+COPY requirements.txt /tmp/local_requirements.txt
+COPY app /tmp/local_app
 RUN pip config set global.index-url "${PIP_INDEX_URL}" \
     && pip config set global.trusted-host "${PIP_TRUSTED_HOST}" \
+    && if [ "${AUTO_PULL_LATEST}" = "true" ]; then \
+         if [ -z "${GIT_REPO_URL}" ]; then \
+           echo "[ERROR] AUTO_PULL_LATEST=true but GIT_REPO_URL is empty"; \
+           exit 1; \
+         fi; \
+         git clone --depth "${GIT_CLONE_DEPTH}" --branch "${GIT_BRANCH}" "${GIT_REPO_URL}" /tmp/repo; \
+         cp "/tmp/repo/${GIT_PROJECT_SUBDIR}/requirements.txt" /app/requirements.txt; \
+         cp -r "/tmp/repo/${GIT_PROJECT_SUBDIR}/app" /app/app; \
+       else \
+         cp /tmp/local_requirements.txt /app/requirements.txt; \
+         cp -r /tmp/local_app /app/app; \
+       fi \
     && pip install -r /app/requirements.txt
 
-COPY app /app/app
-
 EXPOSE 8020
 
 CMD ["python", "-m", "uvicorn", "app.edge_dispatch_service:app", "--host", "0.0.0.0", "--port", "8020"]
diff --git a/video_worker/scripts/start_center_dispatch.sh b/video_worker/scripts/start_center_dispatch.sh
index e6e4598..94b90ef 100755
--- a/video_worker/scripts/start_center_dispatch.sh
+++ b/video_worker/scripts/start_center_dispatch.sh
@@ -16,9 +16,7 @@ fi
 
 if [ ! -f .env.center ]; then
   cp .env.center.example .env.center
-  echo "[ERROR] .env.center was missing; template created at .env.center"
-  echo "Please edit OSS and port settings, then rerun this script."
-  exit 1
+  echo "[INFO] .env.center was missing; template created at .env.center"
 fi
 
 # hard split: center project name + dedicated compose/env file
@@ -28,6 +26,28 @@ COMPOSE_FILE="docker-compose.center-dispatch.yml"
 EDGE_PORT=$(grep '^EDGE_DISPATCH_PORT=' .env.center | tail -n1 | cut -d'=' -f2- || true)
 EDGE_PORT="${EDGE_PORT:-8020}"
 
+# one-click defaults for pulling latest code at build time
+DEFAULT_GIT_REPO_URL=""
+if command -v git >/dev/null 2>&1; then
+  DEFAULT_GIT_REPO_URL="$(git config --get remote.origin.url || true)"
+fi
+
+export AUTO_PULL_LATEST="${AUTO_PULL_LATEST:-true}"
+export GIT_REPO_URL="${GIT_REPO_URL:-$DEFAULT_GIT_REPO_URL}"
+export GIT_BRANCH="${GIT_BRANCH:-master}"
+export GIT_CLONE_DEPTH="${GIT_CLONE_DEPTH:-1}"
+export GIT_PROJECT_SUBDIR="${GIT_PROJECT_SUBDIR:-video_worker}"
+
+if [ "${AUTO_PULL_LATEST}" = "true" ] && [ -z "${GIT_REPO_URL}" ]; then
+  echo "[ERROR] AUTO_PULL_LATEST=true but GIT_REPO_URL is empty"
+  echo "[INFO] set GIT_REPO_URL in .env.center or export it before running"
+  exit 1
+fi
+
+echo "[INFO] AUTO_PULL_LATEST=${AUTO_PULL_LATEST}"
+echo "[INFO] GIT_REPO_URL=${GIT_REPO_URL}"
+echo "[INFO] GIT_BRANCH=${GIT_BRANCH}"
+
 docker compose \
   --project-name "$PROJECT_NAME" \
   --env-file .env.center \