Add support for Oracle Cloud Infrastructure

[navaneeth-dev]

Add support for Oracle Cloud Infrastructure

I want official builds of flatcar for Oracle Cloud.

How to use

Right now I verified it works. I will try to work on CI builds tomorrow.
I will fix the conventions soon.

Testing done

Right now I verified it works.

Related to: flatcar/Flatcar#1855

CI: http://localhost:8080/job/container/job/packages_all_arches/7596/cldsv/

[navaneeth-dev]

@tormath1 you can review it now. Also do I need to provide an oracle test script?

[chewi]

@tormath1 is away at KubeCon, so he may take some time to respond. He knows this area best.

[tormath1]

Thanks a lot for this contribution. It looks good.

Only SSH keys and hostname are missing.Any chance to enable it and give it a try ?

• https://github.com/flatcar/init/blob/flatcar-master/systemd/system/sshkeys.service
• https://github.com/flatcar/bootengine/blob/flatcar-master/dracut/53ignition/flatcar-metadata-hostname.service

Also do I need to provide an oracle test script?

There is a full test suite defined here: https://github.com/flatcar/mantle - if OCI has a Go SDK, then we can check to implement OCI support in Mantle (e.g: flatcar/mantle#652) but this can be done in a second time (it will give me time to investigate OCI test sponsoring. :))

[navaneeth-dev]

I will check SSH & hostname support.
Yes OCI has a Go SDK: https://github.com/oracle/oci-go-sdk

[tormath1]

I will check SSH & hostname support. Yes OCI has a Go SDK: https://github.com/oracle/oci-go-sdk

Thanks. For what is worth, I asked CNCF about OCI sponsoring to enable Flatcar tests on this cloud provider.

On another aspect, I kicked-off a CI run to see if everything builds correctly. Thanks for your work so far!

[navaneeth-dev]

Anything I can do to help on the OCI sponsoring part? I can ask the oracle community here.

I can also create documentation later.

Will test the hostname and ssh in a few days.

[navaneeth-dev]

./run_sdk_container -t

###### Writing versionfile 'sdk_container/.repo/manifests/version.txt' to SDK '4643.0.0+nightly-20260318-2100', OS '4643.0.0+nightly-20260318-2100-14-ga616119ae7'. ######

###### Creating a new container 'flatcar-sdk-all-4643.0.0-nightly-20260318-2100_os-main-4643.0.0-nightly-20260318-2100-14-ga616119ae7' ######
-v /home/rize/.config/gcloud:/home/rize/.config/gcloud
Error response from daemon: manifest unknown
Falling back to tar ball download...

How do I fix this? I am not able to test the builds on my feature branch. Can I change version.txt to a stable version?

[tormath1]

Hey @navaneeth-dev thanks - we have some issues with the CI right now, that might explain the issue you see. You should be able to run the SDK using the latest released image:

./run_sdk_container -t -a amd64 -C ghcr.io/flatcar/flatcar-sdk-amd64:4628.0.0

Anything I can do to help on the OCI sponsoring part? I can ask the oracle community here.

Thanks a lot for asking, I've created a ticket to the CNCF a few days ago - let's see how it goes. ❤️

[navaneeth-dev]

INFO    build_packages: Checking /build/amd64-usr
/usr/bin/grog: /usr/bin/perl does not exist
/usr/bin/gpinyin: (env)/perl does not exist
/usr/bin/gperl: (env)/perl does not exist
/usr/bin/glilypond: (env)/perl does not exist
/usr/bin/chem: (env)/perl does not exist
/usr/bin/diff-highlight: /usr/bin/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/bootgraph.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkdeclares.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkincludes.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkstack.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkversion.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/cleanfile: (env)/perl does not exist

Still unable to build.

./run_sdk_container -t -a amd64 -C ghcr.io/flatcar/flatcar-sdk-amd64:4628.0.0 -n oci
./build_packages

FLATCAR_VERSION=4628.0.0+nightly-20260318-2100-1-g7b5d4182bc
FLATCAR_VERSION_ID=4628.0.0
FLATCAR_BUILD_ID="nightly-20260318-2100-1-g7b5d4182bc"
FLATCAR_SDK_VERSION=4628.0.0

Lot of HTTP 404 Portage errors.

[tormath1]

INFO build_packages: Checking /build/amd64-usr
/usr/bin/grog: /usr/bin/perl does not exist
/usr/bin/gpinyin: (env)/perl does not exist
/usr/bin/gperl: (env)/perl does not exist
/usr/bin/glilypond: (env)/perl does not exist
/usr/bin/chem: (env)/perl does not exist
/usr/bin/diff-highlight: /usr/bin/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/bootgraph.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkdeclares.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkincludes.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkstack.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/checkversion.pl: (env)/perl does not exist
/usr/lib/modules/6.12.77-flatcar/build/scripts/cleanfile: (env)/perl does not exist

@navaneeth-dev this should not be an issue - it's only warnings. Do you have an actual error message at the end of the command?

[navaneeth-dev]

!!! All ebuilds that could satisfy ">=dev-libs/elfutils-0.158:0/0=" for /mnt/host/source/src/build/images/amd64-usr/developer-4643.0.0+nightly-20260318-2100-13-gc6927109d7-a1/prod-image-rootfs/ have been masked.
!!! One of the following masked packages is required to complete your request:
- dev-libs/elfutils-0.194::portage-stable (masked by: ~amd64 keyword)

(dependency required by "sys-apps/systemd-258.3::portage-stable" [binary])
(dependency required by "sys-libs/pam-1.7.2::portage-stable" [binary])
(dependency required by "app-admin/sudo-1.9.17_p2::portage-stable" [binary])
(dependency required by "coreos-base/coreos-0.0.1-r319::coreos-overlay" [binary])
(dependency required by "coreos-base/coreos" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.

ERROR   build_image: script called: build_image
ERROR   build_image: Backtrace:  (most recent call is last)
ERROR   build_image:   file build_image, line 181, called: create_prod_image 'flatcar_production_image.bin' 'base' 'developer' 'coreos-base/coreos' 'containerd-flatcar|app-containers/containerd,docker-flatcar|app-containers/docker&a
pp-containers/docker-cli&app-containers/docker-buildx'
ERROR   build_image:   file prod_image_util.sh, line 97, called: emerge_to_image '/mnt/host/source/src/build/images/amd64-usr/developer-4643.0.0+nightly-20260318-2100-13-gc6927109d7-a1/prod-image-rootfs' 'coreos-base/coreos'
ERROR   build_image:   file build_image_util.sh, line 152, called: die_err_trap 'sudo -E ROOT="${root_fs_dir}" FEATURES="-ebuild-locks" PORTAGE_CONFIGROOT="${BUILD_DIR}"/configroot emerge --usepkgonly --jobs="${NUM_JOBS}" --verbose
"$@"' '1'
ERROR   build_image:
ERROR   build_image: Command failed:
ERROR   build_image:   Command 'sudo -E ROOT="${root_fs_dir}" FEATURES="-ebuild-locks" PORTAGE_CONFIGROOT="${BUILD_DIR}"/configroot emerge --usepkgonly --jobs="${NUM_JOBS}" --verbose "$@"' exited with nonzero code: 1
ERROR   build_image:   !!!!!!!!!!!!!!!!!!!!!!!!!
ERROR   build_image:   !! BEGIN DEBUG OUTPUT: !!
ERROR   build_image:   !!!!!!!!!!!!!!!!!!!!!!!!!

[chewi]

dev-libs/elfutils in both main-4643.0.0-nightly-20260318-2100 and current main have a stable arm64 keyword rather than ~arm64, so perhaps your working tree has got into a bad state.

[chewi]

Oh wait, it was amd64. Still, that should be fine.

[navaneeth-dev]

Oh wait, it was amd64. Still, that should be fine.

I have deleted my repo locally and cloned again. Trying to build again.