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show_all_imagestreams.py
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show_all_imagestreams.py
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#!/bin/env python3
# MIT License
#
# Copyright (c) 2018-2019 Red Hat, Inc.
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import json
import os
import sys
from pathlib import Path
from typing import Dict, Any
IMAGESTREAMS_DIR: str = "imagestreams"
class ShowAllImageStreams(object):
def load_json_file(self, filename: Path) -> Any:
with open(str(filename)) as f:
data = json.load(f)
isinstance(data, Dict)
return data
def show_all_imagestreams(self) -> int:
p = Path(".")
json_files = p.glob(f"{IMAGESTREAMS_DIR}/*.json")
if not json_files:
print(f"No json files present in {IMAGESTREAMS_DIR}.")
return 0
for f in json_files:
json_dict = self.load_json_file(f)
print(f"Tags in the image stream {f}:")
for tag in json_dict["spec"]["tags"]:
print(f"- {tag['name']} -> {tag['from']['name']}")
return 0
if __name__ == "__main__":
isc = ShowAllImageStreams()
isc.show_all_imagestreams()