Mantle extra-test.[first_dual].cl.update.oem test failure

[ader1990]

Description

The github actions started failing on the alpha/beta/stable branches because of one test case extra-test.[first_dual].cl.update.oem failing.

Failed runs:

flatcar/scripts#2243 with https://github.com/flatcar/scripts/actions/runs/10468990492
flatcar/scripts#2242 with https://github.com/flatcar/scripts/actions/runs/10468982389
flatcar/scripts#2241 with https://github.com/flatcar/scripts/actions/runs/10468968955

Impact

github actions failure.

Environment and steps to reproduce

Run github actions on alpha/beta/stable current branches.

Expected behavior

github actions success.

Additional information

From the logs of the failed test run https://github.com/flatcar/scripts/actions/runs/10468982389:

Aug 21 12:15:08.181115 update_engine[1172]: I0821 12:15:08.181099  1172 subprocess.cc:46] Subprocess output:
Aug 21 12:15:08.181115 update_engine[1172]: Args { output_dir: "/var/lib/update_engine/ue-rs/", target_filename: Some("oem-azure.raw"), input_xml: Some("/var/lib/update_engine/prefs/full-response"), payload_url: None, pubkey_file: "/usr/share/update_engine/update-payload-key.pub.pem", image_match: ["*oem-azure.gz"], take_first_match: true }
Aug 21 12:15:08.181115 update_engine[1172]: Error: FromStr(decode (6dBJ+JJfyGsF5fwB4QRExp27i54kFL7/o3jaqTuJews=) failed)
Aug 21 12:15:08.181115 update_engine[1172]: Falling back to bincache-server for extension 'oem-azure'
Aug 21 12:15:08.181115 update_engine[1172]: Args { output_dir: "/var/lib/update_engine/ue-rs/", target_filename: Some("oem-azure.raw"), input_xml: None, payload_url: Some(

"https://bincache.flatcar-linux.net/images/amd64/4012.1.0+nightly-20240814-2100-3-g2bf0ceb0f2/flatcar_test_update-oem-azure.gz"

), pubkey_file: "/usr/share/update_engine/update-payload-key.pub.pem", image_match: [], take_first_match: false }
Aug 21 12:15:08.181115 update_engine[1172]: Error: unable to download data(url Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("bincache.flatcar-linux.net")), port: None, path: "/images/amd64/4012.1.0+nightly-20240814-2100-3-g2bf0ceb0f2/flatcar_test_update-oem-azure.gz", query: None, fragment: None })
Aug 21 12:15:08.181115 update_engine[1172]: Caused by:
Aug 21 12:15:08.181115 update_engine[1172]:     cannnot fetch remotely with status code 404
Aug 21 12:15:08.181115 update_engine[1172]: Failed to download required OEM update payload
Aug 21 12:15:08.181115 update_engine[1172]: E0821 12:15:08.181104  1172 postinstall_runner_action.cc:94] Postinst command failed with code: 1

Note that the payload that needs to be downloaded does not exist on the web server, as it has a suffix,

https://bincache.flatcar-linux.net/images/amd64/4012.1.0+nightly-20240814-2100-3-g2bf0ceb0f2/flatcar_test_update-oem-azure.gz

The non-suffix version does exist: https://bincache.flatcar-linux.net/images/amd64/4012.1.0/flatcar_test_update-oem-azure.gz