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53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import argparse
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import docker
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import gzip
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import os
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import yaml
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from nested_lookup import nested_lookup
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(
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description="Save Docker images")
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parser.add_argument("--manifest",
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required=True,
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help="Path to the manifest yaml")
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parser.add_argument("--save_path",
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type=str,
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default='images',
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help='Directory to save images to')
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arguments = parser.parse_args()
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with open(arguments.manifest, 'r') as file:
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template = file.read()
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images=[]
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parts = template.split('---')
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for p in parts:
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y = yaml.safe_load(p)
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matches = nested_lookup("image", y)
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if (len(matches)):
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images += matches
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save_path = arguments.save_path
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if not os.path.isdir(save_path):
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os.mkdir(save_path)
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client = docker.from_env()
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for image_name in set(images):
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file_name = (image_name.split(':')[0].replace("/", "-"))
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f = gzip.open(save_path + "/" + file_name + '.tar.gz', 'wb')
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try:
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image = client.images.get(image_name)
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if image.id:
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print ("docker image \"" + image_name + "\" already exists.")
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except docker.errors.ImageNotFound:
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print ("docker pull " + image_name + " ...")
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image = client.images.pull(image_name)
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image_tar = image.save(named=True)
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f.writelines(image_tar)
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f.close()
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print("Save docker images to \"" + save_path + "\"")
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