[VL] update docker script in readme

docs/developers/docker_ubuntu22.04.md

@@ -4,12 +4,14 @@ title: Docker script for Ubuntu 22.04/20.04
 nav_order: 6
 parent: Developer Overview
 ---
+
+To the first build, it's suggested to build Gluten in a clean docker image. Otherwise it's easy to run into library version conflict issues.
 Here is a docker script we verified to build Gluten+Velox backend on Ubuntu22.04/20.04:
 
 Run on host as root user:
 ```
 docker pull ubuntu:22.04
-docker run -itd --name gluten ubuntu:22.04 /bin/bash
+docker run -itd --network host --name gluten ubuntu:22.04 /bin/bash
 docker attach gluten
 ```
 
@@ -19,11 +21,14 @@ apt-get update
 
 #install gcc and libraries to build arrow
 apt install software-properties-common
-apt install maven build-essential cmake libssl-dev libre2-dev libcurl4-openssl-dev clang lldb lld libz-dev git ninja-build uuid-dev
+apt install maven build-essential cmake libssl-dev libre2-dev libcurl4-openssl-dev clang lldb lld libz-dev git ninja-build uuid-dev autoconf-archive curl zip unzip tar pkg-config bison libtool flex vim
 
 #velox script needs sudo to install dependency libraries
 apt install sudo
 
+# make sure jemalloc is uninstalled, jemalloc will be build in vcpkg, which conflicts with the default jemalloc in system
+apt remove jemalloc_dev jemalloc
+
 #make sure jdk8 is used. New version of jdk is not supported
 apt install -y openjdk-8-jdk
 apt install -y default-jdk
@@ -36,20 +41,20 @@ DEBIAN_FRONTEND=noninteractive apt-get install -y tzdata
 dpkg --configure -a
 
 #setup proxy on necessary
-export http_proxy=xxxx
-export https_proxy=xxxx
+#export http_proxy=xxxx
+#export https_proxy=xxxx
 
 #clone gluten
 git clone https://github.com/oap-project/gluten.git
 cd gluten/
 
 #config maven proxy
 #mkdir ~/.m2/
-#apt install vim
 #vim ~/.m2/settings.xml
 
 # the script download velox & arrow and compile all dependency library automatically
 # To access HDFS or S3, you need to add the parameters `--enable_hdfs=ON` and `--enable_s3=ON`
-./dev/buildbundle-veloxbe.sh
-
+# It's suggested to build using static link, enabled by --ENABLE_VCPKG=ON
+# For developer, it's suggested to enable Debug info, by --BUILD_TYPE=RelWithDebInfo. Note RelWithDebInfo uses -o2, release uses -o3
+./dev/buildbundle-veloxbe.sh --ENABLE_VCPKG=ON --BUILD_TYPE=RelWithDebInfo
 ```