Re: [PATCH v8 1/5] classes: add root filesystem containerizing class

[Silvano Cirujano Cuesta <silvano.cirujano-cuesta@siemens.com>]

On 20/08/2021 08:54, Jan Kiszka wrote:
> On 19.08.21 22:43, Bezdeka, Florian wrote:
>> On Mon, 2021-03-29 at 17:56 +0200, [ext] Silvano Cirujano Cuesta wrote:
>>> This class can be used to create container images which root filesystem
>>> is that generated by the do_rootfs task.
>>>
>>> Containerized root filesystems have following possible use-cases:
>>>  - Using ISAR as a container image builder.
>>>  - Simplify distribution of runtime rootfs (binaries, libraries,
>>>    configurations, ...) for application development or testing.
>>>  - Distributing SDKs.
>>>
>>> Signed-off-by: Silvano Cirujano Cuesta <silvano.cirujano-cuesta@siemens.com>
>>> ---
>>>  .../classes/image-container-extension.bbclass | 82 +++++++++++++++++++
>>>  meta/classes/image.bbclass                    |  1 +
>>>  2 files changed, 83 insertions(+)
>>>  create mode 100644 meta/classes/image-container-extension.bbclass
>>>
>>> diff --git a/meta/classes/image-container-extension.bbclass b/meta/classes/image-container-extension.bbclass
>>> new file mode 100644
>>> index 0000000..f693627
>>> --- /dev/null
>>> +++ b/meta/classes/image-container-extension.bbclass
>>> @@ -0,0 +1,82 @@
>>> +# This software is a part of ISAR.
>>> +# Copyright (C) Siemens AG, 2021
>>> +#
>>> +# SPDX-License-Identifier: MIT
>>> +#
>>> +# This class extends the image.bbclass for containerizing the root filesystem.
>>> +
>>> +CONTAINER_FORMATS ?= "docker-archive"
>>> +IMAGE_INSTALL += "isar-exclude-docs isar-disable-apt-cache"
>>> +
>>> +containerize_rootfs() {
>>> +    local cmd="/bin/dash"
>>> +    local empty_tag="empty"
>>> +    local full_tag="latest"
>>> +    local oci_img_dir="${WORKDIR}/oci-image"
>>> +    local rootfs="$1"
>>> +    local rootfs_id="$2"
>>> +    local container_formats="$3"
>>> +
>>> +    # prepare OCI container image skeleton
>>> +    bbdebug 1 "prepare OCI container image skeleton"
>>> +    rm -rf "${oci_img_dir}"
>>> +    sudo umoci init --layout "${oci_img_dir}"
>>
>> Sorry for replying to this quite old thread but the timestamp of the
>> commit actually delivered this patch as root cause:
>>
>> Who makes sure umoci is available?
>>
> 
> The build environment you need to prepare for Isar, either a manually
> installed Debian or a container like kas-isar.
> 
> Jan
> 

Let me add that the needed packages are officially available for the freshly released Debian Stable/Bullseye/11.

Manually backporting them to Buster might work though if stricktly needed...
-- 
  Silvano Cirujano Cuesta
-- 
Siemens AG, T RDA IOT SES-DE
Corporate Competence Center Embedded Linux