[update] remove airflow folder setup and webservice init

[bugfix] fix missing next line

[bugfix] prioritize /usr/local/bin so that python3.10.10 is reached before system default python3.10.6; add setuptools

[update] mute log4j INFO level, only show if ERROR

Merge pull request #30 from michaelchanwahyan/bugfix/29-unable-to-run-pyspark-or-spark-shell

[bugfix] add hadoop module v3.3.4 ; make SPARK_DIS_CLASSPATH finding hadoop

[update] promote base system to 2204; Python3 is 3.10.10

[revamp] 1. remove HADOOP_XXX path env; 2. jdk from custom to openjdk-8; 3. SPARK from 3.2.0 to 3.2.1; 4. speech py packages added

[bugfix] fix apache spark v3.2.0 link, to archive

[bugfix] delete unwanted dags folder

[merge] 1st merge from datalab2022, promote to ubuntu20.04; Python3.8; Airflow2.0.1

[update] update package info and highlight

[newfile] add startup script

[update] 2022 datalab revamp , promote to python 3.8 and airflow 2.0.1

Merge branch 'dockerbuild-trigger'