#!/usr/bin/env python
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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"""
Python script to prepare the hardcoded source folder for the docker official image
This script is used to prepare the source folder for the docker official image
Usage:
prepare_docker_official_image_source.py --help
Get detailed description of each option
Example command:-
prepare_docker_official_image_source.py --image-type <image_type> --kafka-version <kafka_version>
This command will build a directory with the name as <kafka_version> housing the hardcoded static Dockerfile and scripts for
the docker official image, <image_type> as image type (jvm by default), <kafka_version> for the kafka version for which the
image is being built.
"""
from datetime import date
import argparse
import os
import shutil
import re
def remove_args_and_hardcode_values(file_path, kafka_version, kafka_url):
with open(file_path, 'r') as file:
filedata = file.read()
filedata = filedata.replace("ARG kafka_url", f"ENV kafka_url {kafka_url}")
filedata = filedata.replace(
"ARG build_date", f"ENV build_date {str(date.today())}")
original_comment = re.compile(r"# Get kafka from https://archive.apache.org/dist/kafka and pass the url through build arguments")
updated_comment = f"# Get Kafka from https://archive.apache.org/dist/kafka, url passed as env var, for version {kafka_version}"
filedata = original_comment.sub(updated_comment, filedata)
with open(file_path, 'w') as file:
file.write(filedata)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument("--image-type", "-type", choices=[
"jvm"], default="jvm", dest="image_type", help="Image type you want to build")
parser.add_argument("--kafka-version", "-v", dest="kafka_version",
help="Kafka version for which the source for docker official image is to be built")
args = parser.parse_args()
kafka_url = f"https://archive.apache.org/dist/kafka/{args.kafka_version}/kafka_2.13-{args.kafka_version}.tgz"
current_dir = os.path.dirname(os.path.realpath(__file__))
new_dir = os.path.join(current_dir, 'docker_official_images', args.kafka_version)
if os.path.exists(new_dir):
shutil.rmtree(new_dir)
os.makedirs(new_dir)
shutil.copytree(os.path.join(current_dir, args.image_type), os.path.join(new_dir, args.image_type), dirs_exist_ok=True)
shutil.copytree(os.path.join(current_dir, 'resources'), os.path.join(new_dir, args.image_type, 'resources'), dirs_exist_ok=True)
remove_args_and_hardcode_values(os.path.join(new_dir, args.image_type, 'Dockerfile'), args.kafka_version, kafka_url)