feat(ci): preparing work for flattening image

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

ci-scripts/Jenkinsfile-GitLab-Docker

@@ -198,6 +198,9 @@ pipeline {
                   myShCmd('docker image tag oai-ausf-base:' + AUSF_BASE_IMAGE_TAG + ' oai-ausf-base:latest', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                   myShCmd('docker build --no-cache --target oai-ausf --tag oai-ausf:' + ausf_tag + ' --file ci-scripts/docker/Dockerfile.ci.ubuntu.18.04 . > archives/ausf_docker_image_build.log 2>&1', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                 }
+                // Putting a place holder to try out on the flattening of image.
+                // If not satisfactory, we can remove it.
+                myShCmd('python3 ./ci-scripts/flatten_image.py --tag oai-ausf:' + ausf_tag, rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                 myShCmd('docker image ls >> archives/ausf_docker_image_build.log', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                 // We will keep also the TMP image in U18 case.
                 if ("MERGE".equals(env.gitlabActionType)) {
@@ -245,6 +248,9 @@ pipeline {
                   myShCmd('sudo cp /etc/rhsm/rhsm.conf ./rhsm-conf', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                   myShCmd('sudo cp /etc/rhsm/ca/*.pem ./rhsm-ca', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                   myShCmd('sudo podman build --no-cache --target oai-ausf --tag oai-ausf:' + ausf_tag + ' --file docker/Dockerfile.ausf.rhel8 --build-arg NEEDED_GIT_PROXY="http://proxy.eurecom.fr:8080" . > archives/ausf_podman_image_build.log 2>&1', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  // Putting a place holder to try out on the flattening of image.
+                  // If not satisfactory, we can remove it.
+                  myShCmd('python3 ./ci-scripts/flatten_image.py --tag oai-ausf:' + ausf_tag, rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                   myShCmd('sudo podman image ls >> archives/ausf_podman_image_build.log', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                   if ("MERGE".equals(env.gitlabActionType)) {
                     myShCmd('sudo podman image tag oai-ausf:' + ausf_tag + ' oai-ausf:' + rhel_ausf_tag, rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)

ci-scripts/flatten_image.py

+"""
+ 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 sys
+
+def main() -> None:
+    args = _parse_args()
+    print (f'Does nothing for the moment on {args.tag}')
+    sys.exit(0)
+
+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()
+
+if __name__ == '__main__':
+    main()