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"""
Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The OpenAirInterface Software Alliance licenses this file to You under
the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-------------------------------------------------------------------------------
For more information about the OpenAirInterface (OAI) Software Alliance:
contact@openairinterface.org
"""
import argparse
import re
import subprocess
import sys
def main() -> None:
args = _parse_args()
status = perform_flattening(args.tag)
sys.exit(status)
def _parse_args() -> argparse.Namespace:
parser = argparse.ArgumentParser(description='Flattening Image')
parser.add_argument(
'--tag', '-t',
action='store',
required=True,
help='Image Tag in image-name:image tag format',
)
return parser.parse_args()
def perform_flattening(tag):
# First detect which docker/podman command to use
cli = ''
image_prefix = ''
cmd = 'which podman || true'
podman_check = subprocess.check_output(cmd, shell=True, universal_newlines=True)
if re.search('podman', podman_check.strip()):
cli = 'sudo podman'
image_prefix = 'localhost/'
if cli == '':
cmd = 'which docker || true'
docker_check = subprocess.check_output(cmd, shell=True, universal_newlines=True)
if re.search('docker', docker_check.strip()):
cli = 'docker'
image_prefix = ''
if cli == '':
print ('No docker / podman installed: quitting')
return -1
print (f'Flattening {tag}')
# Creating a container
cmd = cli + ' run --name test-flatten --entrypoint /bin/true -d ' + tag
print (cmd)
subprocess.check_output(cmd, shell=True, universal_newlines=True)
# Export / Import trick
cmd = cli + ' export test-flatten | ' + cli + ' import '
# Bizarro syntax issue with podman
if cli == 'docker':
cmd += ' --change "ENV PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" '
else:
cmd += ' --change "ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" '
if re.search('oai-enb', tag):
cmd += ' --change "WORKDIR /opt/oai-enb" '
cmd += ' --change "EXPOSE 2152/udp" '
cmd += ' --change "EXPOSE 36412/udp" '
cmd += ' --change "EXPOSE 36422/udp" '
cmd += ' --change "CMD [\\"/opt/oai-enb/bin/lte-softmodem\\", \\"-O\\", \\"/opt/oai-enb/etc/enb.conf\\"]" '
cmd += ' --change "ENTRYPOINT [\\"/opt/oai-enb/bin/entrypoint.sh\\"]" '
if re.search('oai-gnb', tag):
cmd += ' --change "WORKDIR /opt/oai-gnb" '
cmd += ' --change "EXPOSE 2152/udp" '
cmd += ' --change "EXPOSE 36422/udp" '
cmd += ' --change "CMD [\\"/opt/oai-gnb/bin/nr-softmodem\\", \\"-O\\", \\"/opt/oai-gnb/etc/gnb.conf\\"]" '
cmd += ' --change "ENTRYPOINT [\\"/opt/oai-gnb/bin/entrypoint.sh\\"]" '
if re.search('oai-lte-ue', tag):
cmd += ' --change "WORKDIR /opt/oai-lte-ue" '
cmd += ' --change "CMD [\\"/opt/oai-lte-ue/bin/lte-uesoftmodem\\"]" '
cmd += ' --change "ENTRYPOINT [\\"/opt/oai-lte-ue/bin/entrypoint.sh\\"]" '
if re.search('oai-nr-ue', tag):
cmd += ' --change "WORKDIR /opt/oai-nr-ue" '
cmd += ' --change "CMD [\\"/opt/oai-nr-ue/bin/nr-uesoftmodem\\", \\"-O\\", \\"/opt/oai-nr-ue/etc/nr-ue.conf\\"]" '
cmd += ' --change "ENTRYPOINT [\\"/opt/oai-nr-ue/bin/entrypoint.sh\\"]" '
if re.search('oai-lte-ru', tag):
cmd += ' --change "WORKDIR /opt/oai-lte-ru" '
cmd += ' --change "CMD [\\"/opt/oai-lte-ru/bin/oairu\\", \\"-O\\", \\"/opt/oai-lte-ru/etc/rru.conf\\"]" '
cmd += ' --change "ENTRYPOINT [\\"/opt/oai-lte-ru/bin/entrypoint.sh\\"]" '
if re.search('oai-physim', tag):
cmd += ' --change "WORKDIR /opt/oai-physim" '
cmd += ' - ' + image_prefix + tag
print (cmd)
subprocess.check_output(cmd, shell=True, universal_newlines=True)
# Remove container
cmd = cli + ' rm -f test-flatten'
print (cmd)
subprocess.check_output(cmd, shell=True, universal_newlines=True)
# At this point the original image is a dangling image.
# CI pipeline will clean up (`image prune --force`)
return 0
if __name__ == '__main__':
main()