ssh: Use ed25519 algorithm instead ECDSA

[praveenkumar]

Key generated using ecdsa algorithm is causing issue for podman remote
connection on podman desktop side because the library they consume
doesn't have support for this algorithm. This PR is switching the ecdsa
to ed25519 which is supported by the library consumed in podman desktop.

[0] containers/podman-desktop#8351
[1] mscdex/ssh2#1375

how to test

• Use artifact from this PR to install crc (windows and mac)
• Install the podman-desktop
• No need to start podman machine or even enable the openshift-local plugin
• from the PD, Setting => preference => Extension: podman => Enable the Remote
• start crc with microshift preset

$ podman system connection add crc-root --identity "C:\Users\<username>\.crc\machines\crc\id_ed25519"  "ssh://[email protected]:2222/run/podman/podman.sock"

• on the PD check if images and pods are now listed.

[praveenkumar]

/retest

[openshift-ci]

@praveenkumar: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/images	8794f8a	link	true	/test images
ci/prow/e2e-microshift-crc	8794f8a	link	true	/test e2e-microshift-crc
ci/prow/e2e-crc	8794f8a	link	true	/test e2e-crc
ci/prow/integration-crc	8794f8a	link	true	/test integration-crc
ci/prow/security	8794f8a	link	false	/test security

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[vyasgun]

Can you list the testing steps in the PR description?

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anjannath

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [anjannath]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[praveenkumar]

Can you list the testing steps in the PR description?

containers/podman-desktop#8351 have steps around how it can be tested, I also added the steps here.

[anjannath]

Can you list the testing steps in the PR description?

What i did to test was, ensure running crc start was successful with the 4.16.4 bundle,

then verified i can ssh into the crc VM using the new ed25519 key using:

$ ssh -i ~/.crc/machines/crc/id_ed25519 -p 2222 -oUserKnownHostsFile=/dev/null -oStrictHostKeyChecking=no core@localhost`

[vyasgun]

Thanks @praveenkumar and @anjannath . I tested and it works for me too via terminal but not through PD (I can't see any id_ed25519 file in the crc directory). Also, the step to add podman system connection is only required for Windows, right? I am on MacBook.

Logs:

gvyas-mac:crc gvyas$ ~/.crc/bin/crc version
CRC version: 2.40.0+a14925
OpenShift version: 4.16.4
MicroShift version: 4.16.4

gvyas-mac:~ gvyas$ tail -f ~/.crc/crc.log
time="2024-08-14T13:14:06+05:30" level=info msg="Checking if /Users/gvyas/.crc/cache/crc_microshift_vfkit_4.16.4_amd64.crcbundle exists"
time="2024-08-14T13:14:06+05:30" level=debug msg="/Users/gvyas/.crc/cache/crc_microshift_vfkit_4.16.4_amd64.crcbundle exists"
time="2024-08-14T13:14:06+05:30" level=info msg="Checking if old launchd config for tray and/or daemon exists"
time="2024-08-14T13:14:06+05:30" level=info msg="Checking if crc daemon plist file is present and loaded"
time="2024-08-14T13:14:06+05:30" level=debug msg="Running 'bash -c launchctl list | grep com.redhat.crc.daemon | awk '{print $1}''"
time="2024-08-14T13:14:06+05:30" level=info msg="Checking SSH port availability"
time="2024-08-14T13:14:06+05:30" level=debug msg="CRC version: 2.40.0+a14925\n"
time="2024-08-14T13:14:06+05:30" level=debug msg="OpenShift version: 4.16.4\n"
time="2024-08-14T13:14:06+05:30" level=debug msg="MicroShift version: 4.16.4\n"
time="2024-08-14T13:14:06+05:30" level=debug msg="Running 'crc config get'"
time="2024-08-14T13:15:21+05:30" level=debug msg="CRC version: 2.40.0+a14925\n"
time="2024-08-14T13:15:21+05:30" level=debug msg="OpenShift version: 4.16.4\n"
time="2024-08-14T13:15:21+05:30" level=debug msg="MicroShift version: 4.16.4\n"
time="2024-08-14T13:15:21+05:30" level=debug msg="Running 'crc version'"
time="2024-08-14T13:15:22+05:30" level=debug msg="No new version available. The latest version is 2.40.0"

Podman Desktop version (v1.12.0)

[anjannath]

there's a typo in this command:

$ podman system connection add crc-root --identity "C:\Users<username>.crc\machines\crc\id_ecdsa" "ssh://[email protected]:2222/run/podman/podman.sock"

the path to the ssh key should use the ed_25519 key so C:\Users\<username>\.crc\machines\crc\id_ed25519