Stage CNI (and harvester) images if avaliable for airgap

[dereknola]

Proposed Changes

• For the supported CNIs, if images are found in the artifact path, automatically move to the agent images directory, removing a manual step the user would need to perform.

Types of Changes

Verification

Create two folder with the following contents:

derek@degion:~$ ls ./rke2-artifacts
rke2-images.linux-amd64.tar.zst  rke2.linux-amd64.tar.gz  sha256sum-amd64.txt

derek@degion:~$ ls ./rke2-artifacts-with-extra/
rke2-images-canal.linux-amd64.tar.zst   rke2-images-harvester.linux-amd64.tar.gz  rke2.linux-amd64.tar.gz
rke2-images-flannel.linux-amd64.tar.gz  rke2-images.linux-amd64.tar.zst           sha256sum-amd64.txt

Run the installer on both:

root@degion:/home/derek/rancher/rke2# INSTALL_RKE2_ARTIFACT_PATH=/home/derek/rke2-artifacts sh install.sh
[INFO]  staging local checksums from /home/derek/rke2-artifacts2/sha256sum-amd64.txt
[INFO]  staging zst airgap image tarball from /home/derek/rke2-artifacts/rke2-images.linux-amd64.tar.zst
[INFO]  staging tarball from /home/derek/rke2-artifacts/rke2.linux-amd64.tar.gz
[INFO]  verifying airgap tarball
[INFO]  installing airgap tarball to /var/lib/rancher/rke2/agent/images
[INFO]  verifying tarball
[INFO]  unpacking tarball file to /usr/local

root@degion:/home/derek/rancher/rke2# INSTALL_RKE2_ARTIFACT_PATH=/home/derek/rke2-artifacts-with-extra sh install.sh
[INFO]  staging local checksums from /home/derek/rke2-artifacts-with-extra/sha256sum-amd64.txt
[INFO]  staging zst airgap image tarball from /home/derek/rke2-artifacts-with-extra/rke2-images.linux-amd64.tar.zst
[INFO]  staging tarball from /home/derek/rke2-artifacts-with-extra/rke2.linux-amd64.tar.gz
[INFO]  verifying airgap tarball
[INFO]  installing airgap tarball to /var/lib/rancher/rke2/agent/images
[INFO]  Installing airgap image from /home/derek/rke2-artifacts-with-extra/rke2-images-canal.linux-amd64.tar.zst
[INFO]  Installing airgap image from /home/derek/rke2-artifacts-with-extra/rke2-images-flannel.linux-amd64.tar.gz
[INFO]  Installing airgap image from /home/derek/rke2-artifacts-with-extra/rke2-images-harvester.linux-amd64.tar.gz
[INFO]  verifying tarball
[INFO]  unpacking tarball file to /usr/local

Testing

Linked Issues

#6308

User-Facing Change

Further Comments

[dereknola]

I have swapped this out for a single find command with nice printing

root@degion:/home/derek/rancher/rke2# INSTALL_RKE2_ARTIFACT_PATH=/home/derek/rke2-artifacts sh install.sh
[INFO]  staging local checksums from /home/derek/rke2-artifacts/sha256sum-amd64.txt
[INFO]  staging zst airgap image tarball from /home/derek/rke2-artifacts/rke2-images.linux-amd64.tar.zst
[INFO]  staging tarball from /home/derek/rke2-artifacts/rke2.linux-amd64.tar.gz
[INFO]  verifying airgap tarball
[INFO]  installing airgap tarball to /var/lib/rancher/rke2/agent/images
[INFO]  installing airgap image from /home/derek/rke2-artifacts/rke2-images-flannel.linux-amd64.tar.gz
[INFO]  installing airgap image from /home/derek/rke2-artifacts/rke2-images-harvester.linux-amd64.tar.gz
[INFO]  installing airgap image from /home/derek/rke2-artifacts/rke2-images-canal.linux-amd64.tar.zst
[INFO]  verifying tarball
[INFO]  unpacking tarball file to /usr/local

I moved away from doing it in stage_local_airgap_tarball because that temporarily stages the image tarball for checksum validation. The install will not continue if that checksum does not match. We want to maintain this functionality. Instead we now move the other airgap images only if the above image checksum match passes. Since we don't have checksums for theses images, we just assume they are fine.

[alknopfler]

LGTM