Added entrypoint for task executor (#4551)

### What problem does this PR solve?

Added entrypoint for task executor

### Type of change

- [x] Refactoring

Dockerfile

 COPY pyproject.toml uv.lock ./
 
 COPY docker/service_conf.yaml.template ./conf/service_conf.yaml.template
-COPY docker/entrypoint.sh ./entrypoint.sh
-RUN chmod +x ./entrypoint.sh
+COPY docker/entrypoint.sh docker/entrypoint_task_executor.sh ./
+RUN chmod +x ./entrypoint*.sh
 
 # Copy compiled web pages
 COPY --from=builder /ragflow/web/dist /ragflow/web/dist

docker/docker-compose.yml

       - ragflow
     restart: on-failure
     # https://docs.docker.com/engine/daemon/prometheus/#create-a-prometheus-configuration
-    # If you're using Docker Desktop, the --add-host flag is optional. This flag makes sure that the host's internal IP gets exposed to the Prometheus container. 
+    # If you're using Docker Desktop, the --add-host flag is optional. This flag makes sure that the host's internal IP gets exposed to the Prometheus container.
     extra_hosts:
       - "host.docker.internal:host-gateway"
+  # executor:
+  #   depends_on:
+  #     mysql:
+  #       condition: service_healthy
+  #   image: ${RAGFLOW_IMAGE}
+  #   container_name: ragflow-executor
+  #   volumes:
+  #     - ./ragflow-logs:/ragflow/logs
+  #     - ./nginx/ragflow.conf:/etc/nginx/conf.d/ragflow.conf
+  #   env_file: .env
+  #   environment:
+  #     - TZ=${TIMEZONE}
+  #     - HF_ENDPOINT=${HF_ENDPOINT}
+  #     - MACOS=${MACOS}
+  #   entrypoint: "/ragflow/entrypoint_task_executor.sh 1 3"
+  #   networks:
+  #     - ragflow
+  #   restart: on-failure
+  #   # https://docs.docker.com/engine/daemon/prometheus/#create-a-prometheus-configuration
+  #   # If you're using Docker Desktop, the --add-host flag is optional. This flag makes sure that the host's internal IP gets exposed to the Prometheus container.
+  #   extra_hosts:
+  #     - "host.docker.internal:host-gateway"

docker/entrypoint.sh

     eval "echo \"$line\"" >> /ragflow/conf/service_conf.yaml
 done < /ragflow/conf/service_conf.yaml.template
 
-# unset http proxy which maybe set by docker daemon
-export http_proxy=""; export https_proxy=""; export no_proxy=""; export HTTP_PROXY=""; export HTTPS_PROXY=""; export NO_PROXY=""
-
 /usr/sbin/nginx
 
 export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/

docker/entrypoint_task_executor.sh

+#!/bin/bash
+
+# replace env variables in the service_conf.yaml file
+rm -rf /ragflow/conf/service_conf.yaml
+while IFS= read -r line || [[ -n "$line" ]]; do
+    # Use eval to interpret the variable with default values
+    eval "echo \"$line\"" >> /ragflow/conf/service_conf.yaml
+done < /ragflow/conf/service_conf.yaml.template
+
+export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/
+
+PY=python3
+
+CONSUMER_NO_BEG=$1
+CONSUMER_NO_END=$2
+
+function task_exe(){
+    while [ 1 -eq 1 ]; do
+      $PY rag/svr/task_executor.py $1;
+    done
+}
+
+for ((i=CONSUMER_NO_BEG; i<CONSUMER_NO_END; i++))
+do
+  task_exe $i &
+done
+
+wait;