Metis: provision first Ubuntu laptop worker

[SaJaToGu]

Parent: #478

Goal

Provision the first real local Metis worker: the Ubuntu laptop reachable as till@till-E6415-MD60178.

Current State

Metis local repository commit:

50fe4e0 Register first local Ubuntu worker

Known connection data:

• Worker id: linux-laptop-1
• Hostname: till-E6415-MD60178
• FQDN: till-e6415-md60178.fritz.box
• IPv4: 192.168.178.44
• SSH user: till
• Local SSH alias: metis-laptop-1
• SSH daemon: reachable
• Auth status: public-key login pending

Scope

• Install the Metis control-plane public key for user till.
• Verify SSH login from the control machine.
• Collect initial inventory: CPU, memory, disk, Ubuntu version, GPU, battery and Wake-on-LAN status.
• Update examples/home-cluster.yaml from ssh-auth-pending to the next accurate state.
• Document any setup commands needed for future Ubuntu laptop workers.

Acceptance Criteria

• ssh metis-laptop-1 'hostname; uname -srmo' succeeds.
• Hardware inventory is recorded in Metis.
• Worker status is no longer ssh-auth-pending.
• Wake-on-LAN support is either documented as supported or explicitly marked unavailable/unknown with reason.

[SaJaToGu]

Provisioning update:

SSH public-key login now works.

Verification:

ssh metis-laptop-1 'hostname; uname -srmo; id -un'

Returned:

till-E6415-MD60178
Linux 6.4.0-060400-generic x86_64 GNU/Linux
till

Metis commit:

59f7191 Collect inventory for Ubuntu worker

Collected inventory:

• OS: Ubuntu 22.10
• Kernel: Linux 6.4.0-060400-generic
• CPU: Intel Core i3-5005U, 2 cores / 4 threads
• Memory: 7.7 GiB
• Swap: 2.0 GiB
• Disk: 931.5G TOSHIBA MQ01ABD100M
• GPU: Intel HD Graphics 5500
• Python: 3.10.7
• Primary interface: enp3s0
• Primary MAC: ec:aa:a0:2e:16:6c
• Wi-Fi interface: wlp2s0
• Wi-Fi MAC: a0:d3:7a:58:19:89
• Battery: present, charging, observed at 12%, health about 87.7%

Metis status changed from ssh-auth-pending to inventory-collected.

Open checks:

• Wake-on-LAN support is still unknown because ethtool is not installed.
• Ubuntu 22.10 is end-of-life; this worker should be upgraded before unattended work.
• Docker/container runtime is not installed.

[SaJaToGu]

Power-management update:

The Till Ubuntu laptop is now configured to stay reachable when the lid is closed.

Applied over SSH:

• GNOME lid-close-ac-action: nothing
• GNOME lid-close-battery-action: nothing
• Battery inactive sleep timeout: 0
• User service: metis-lid-inhibit.service
• Inhibitor: sleep:handle-lid-switch
• loginctl linger for user till: yes

Verification:

systemctl --user is-active metis-lid-inhibit.service -> active
loginctl show-user till -p Linger -> Linger=yes
systemd-inhibit --list includes Metis sleep:handle-lid-switch block

Metis commit:

e0e221b Keep Ubuntu worker awake on lid close

Worker status is now available in examples/home-cluster.yaml.

[SaJaToGu]

Migrated and split across three Metis issues: https://github.com/SaJaToGu/metis/issues/10 (lid-close behavior on first Ubuntu worker), https://github.com/SaJaToGu/metis/issues/7 (ethtool + Wake-on-LAN check), and https://github.com/SaJaToGu/metis/issues/11 (Ubuntu 22.10 → supported LTS upgrade). This AIS issue stays open until the user verifies the migration.