testnodeaccess
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testnodeaccess [2026/04/03 15:12] djgalloway [SSH Config] |
testnodeaccess [2026/09/14 14:25] (current) djgalloway |
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| ====== Testnode Access ====== | ====== Testnode Access ====== | ||
| ===== Summary ===== | ===== Summary ===== | ||
| - | We have about 250 baremetal testnodes that get automatically reserved (locked) and unlocked by teuthology "workers." Workers are daemons on the ''teuthology.front.sepia.ceph.com'' VM that are fed jobs via a beanstalk queue. This page will cover setting up your workstation to lock and unlock testnodes as well as schedule teuthology suites. | + | We have about 400 baremetal testnodes that get automatically reserved (locked) and unlocked by teuthology "workers" or "dispatchers." Workers are daemons on the ''teuthology.front.sepia.ceph.com'' host that are fed jobs via a beanstalk queue. This page will cover setting up your workstation to lock and unlock testnodes as well as schedule teuthology suites. |
| Baremetal testnodes get OSes automatically "installed" using [[services:FOG]] when you lock them either via ''teuthology-lock'' or ''teuthology-suite''. | Baremetal testnodes get OSes automatically "installed" using [[services:FOG]] when you lock them either via ''teuthology-lock'' or ''teuthology-suite''. | ||
| ===== Teuthology Config ===== | ===== Teuthology Config ===== | ||
| - | Most developers schedule suites from the ''teuthology.front.sepia.ceph.com'' VM which automatically locks/unlocks machines. | + | Most developers schedule suites from the ''teuthology.front.sepia.ceph.com'' host which automatically locks/unlocks machines. |
| However, if you wish to run ''teuthology'' commands from your workstation, see https://docs.ceph.com/projects/teuthology/en/latest/INSTALL.html#installation-and-setup. | However, if you wish to run ''teuthology'' commands from your workstation, see https://docs.ceph.com/projects/teuthology/en/latest/INSTALL.html#installation-and-setup. | ||
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| ===== SSH Config ===== | ===== SSH Config ===== | ||
| - | Baremetal testnodes get reprovisioned with an already-configured OS image including a home dir for your user account. Your ssh public key should be in your user's **and** the ''/home/ubuntu/.ssh/authorized_keys'' file on each testnode. You should always SSH as your username. | + | Baremetal testnodes get reprovisioned with an already-configured OS image including a home dir for your user account. Your SSH public key should be in your user's **and** the ''/home/ubuntu/.ssh/authorized_keys'' file on each testnode. You should always SSH as your username. |
| **Example** | **Example** | ||
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| ForwardAgent yes # <- This is the important part | ForwardAgent yes # <- This is the important part | ||
| - | host smithi* mira* gibba* trial* | + | host smithi* gibba* trial* |
| StrictHostKeyChecking no | StrictHostKeyChecking no | ||
| UserKnownHostsFile=/dev/null | UserKnownHostsFile=/dev/null | ||
| Line 44: | Line 44: | ||
| StrictHostKeyChecking no | StrictHostKeyChecking no | ||
| UserKnownHostsFile=/dev/null | UserKnownHostsFile=/dev/null | ||
| - | </code> | ||
| - | |||
| - | ===== VPSes ===== | ||
| - | VPS (Virtual Private Servers) are ephemeral KVM virtual machines that are spun up on demand using, for example: | ||
| - | \\ ''%%teuthology-lock --lock-many 1 --machine-type vps --os-type ubuntu --os-version 14.04%%'' | ||
| - | |||
| - | **More Information** | ||
| - | * http://docs.ceph.com/teuthology/docs/downburst_vms.html | ||
| - | * https://github.com/ceph/downburst | ||
| - | |||
| - | Their hostnames are ''vpm{001..200}.front.sepia.ceph.com''. A few [[hardware:mira]] are set aside as hypervisors. See [[services:vpshosts]]. | ||
| - | |||
| - | You must create an RSA SSH keypair (named id_rsa/id_rsa.pub) to ssh to VPSes from the teuthology host. We also recommend you have us add the public key to your pubkey file in the [[https://github.com/ceph/keys|keys repo]]. | ||
| - | |||
| - | //Note: You still need a keypair even when using SSH agent forwarding from your workstation.// | ||
| - | |||
| - | The following ''~/.ssh/config'' is required for you to lock VPSes from the teuthology host. | ||
| - | |||
| - | <code> | ||
| - | Host * | ||
| - | StrictHostKeyChecking no | ||
| - | UserKnownHostsFile /dev/null | ||
| - | |||
| - | Host vpm* | ||
| - | User ubuntu | ||
| </code> | </code> | ||
testnodeaccess.txt ยท Last modified: 2026/09/14 14:25 by djgalloway
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