[Bug 1998229] Re: Adding metadata file into OCI images

[Cristovao Cordeiro]

** Description changed:

  [ Impact ]
  
- We have added a build.info file into the/etc/cloud to the Lunar
- container image of Ubuntu. This file can permit the instance to
- determine if a newer build is available with the given runtime info and
- the info on this file. We want to add it into Kinetic, jammy, focal and
- bionic.
+ * The existing Ubuntu container images are being built and published
+ without any metadata information. This will introduce a new cloud-like
+ path and metadata file, including the image's serial number within 
+ (which is useful for users to pinpoint a specific revision of the image).
  
  [ Test Plan ]
  
- * First, you will need to download kinetic, jammy, focal or bionic by
- doing the following:
+ * Run (for any of the affected series):
  
-    docker pull public.ecr.aws/ubuntu/ubuntu:name_of_ubuntu_suite
+    $ docker run public.ecr.aws/ubuntu/ubuntu:jammy grep serial
+ /etc/cloud/build.info || echo "Image metadata not found"
  
- * Secondly, you will need to do
+ * Currently, the output will be
  
-    docker run public.ecr.aws/ubuntu/ubuntu:name_of_ubuntu_suite test -d
- /etc/cloud && echo 'It Exists.'
+    grep: /etc/cloud/build.info: No such file or directory
+    Image metadata not found
  
- The "It Exists." will not be printed except for the suite lunar.
+ * After the release, I'll trigger the Ubuntu container image
+ CI/CD pipelines, and re-run the Docker command from above.
+ * The output shall then be similar to:
+    
+    serial: 20221125
  
  [ Where problems could occur ]
  
- The PR for the build.info file was tested with ubuntu bartender, and
- also I have tried that the lunar image has the file ( the lunar image
- was generated by Jenkins devel from CPC )
+ Given that we're adding new content to the filesystem, there's little
+ room for regression. A potential pitfall could be the future introduction
+ of /etc/cloud/(...) into the minimal filesystem, which would then
+ potentially end up being altered.
  
  [ Other Info ]
-  
+ 
  Here the PR I have made :
  
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433431
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433432
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433433
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433572

** Description changed:

  [ Impact ]
  
  * The existing Ubuntu container images are being built and published
  without any metadata information. This will introduce a new cloud-like
- path and metadata file, including the image's serial number within 
+ path and metadata file, including the image's serial number within
  (which is useful for users to pinpoint a specific revision of the image).
  
  [ Test Plan ]
  
  * Run (for any of the affected series):
  
     $ docker run public.ecr.aws/ubuntu/ubuntu:jammy grep serial
  /etc/cloud/build.info || echo "Image metadata not found"
  
  * Currently, the output will be
  
     grep: /etc/cloud/build.info: No such file or directory
-    Image metadata not found
+    Image metadata not found
  
  * After the release, I'll trigger the Ubuntu container image
  CI/CD pipelines, and re-run the Docker command from above.
+ 
  * The output shall then be similar to:
-    
-    serial: 20221125
+ 
+    serial: 20221125
  
  [ Where problems could occur ]
  
  Given that we're adding new content to the filesystem, there's little
  room for regression. A potential pitfall could be the future introduction
  of /etc/cloud/(...) into the minimal filesystem, which would then
  potentially end up being altered.
  
  [ Other Info ]
  
  Here the PR I have made :
  
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433431
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433432
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433433
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433572

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https://bugs.launchpad.net/bugs/1998229

Title:
  Adding metadata file into OCI images

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Bionic:
  New
Status in livecd-rootfs source package in Focal:
  New
Status in livecd-rootfs source package in Jammy:
  New
Status in livecd-rootfs source package in Kinetic:
  New

Bug description:
  [ Impact ]

  * The existing Ubuntu container images are being built and published
  without any metadata information. This will introduce a new cloud-like
  path and metadata file, including the image's serial number within
  (which is useful for users to pinpoint a specific revision of the image).

  [ Test Plan ]

  * Run (for any of the affected series):

     $ docker run public.ecr.aws/ubuntu/ubuntu:jammy grep serial
  /etc/cloud/build.info || echo "Image metadata not found"

  * Currently, the output will be

     grep: /etc/cloud/build.info: No such file or directory
     Image metadata not found

  * After the release, I'll trigger the Ubuntu container image
  CI/CD pipelines, and re-run the Docker command from above.

  * The output shall then be similar to:

     serial: 20221125

  [ Where problems could occur ]

  Given that we're adding new content to the filesystem, there's little
  room for regression. A potential pitfall could be the future introduction
  of /etc/cloud/(...) into the minimal filesystem, which would then
  potentially end up being altered.

  [ Other Info ]

  Here the PR I have made :

  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433431
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433432
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433433
  https://code.launchpad.net/~samirakarioh/livecd-rootfs/+git/livecd-rootfs/+merge/433572

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