for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
#!/usr/bin/env python
from collections import defaultdict
import subprocess
import os
KEEP_LAST_VERSIONS = int(os.environ.get('KEEP_LAST_VERSIONS', 4))
def find_obsolete_images(images):
for image_name, versions in images.items():
if len(versions) > KEEP_LAST_VERSIONS:
obsolete_versions = sorted(versions, reverse=True)[4:]
for version in obsolete_versions:
yield '{}:v{}'.format(image_name, version)
def parse_images(lines):
images = defaultdict(list)
for line in lines:
try:
image_name, version = line.split(' ')
version_num = int(version.replace('v', ''))
images[image_name].append(version_num)
except ValueError:
pass
return images
def remove_image(image_name):
subprocess.check_call(['docker', 'rmi', image_name])
except subprocess.CalledProcessError as e:
print(e.output)
def all_images():
output = subprocess \
.check_output(['./docker_image_versions.sh'], shell=True) \
.decode('utf-8')
lines = output.split('\n')
return parse_images(lines)
if __name__ == '__main__':
images = all_images()
for image_name in find_obsolete_images(images):
remove_image(image_name)
dreipol /
cleanup-deis-images
