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

[Jan Kiszka <jan.kiszka@siemens.com>]

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

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