Need help adding custom runners for performance benchmarks

[codeboten]

Part of the work to get performance benchmarks requires us to use self-hosted github runners. Adding these, now that we have the hardware, is pretty easy. We just need someone w/ admin access to the open-telemetry org to help.

Related to #1617

[tylerbenson]

CC @jpkrohling @alolita as the listed TC/GC sponsors.

[trask]

We just need someone w/ admin access to the open-telemetry org to help.

this would be @open-telemetry/technical-committee

[cartersocha]

We also need a TC owner on the equinix compute account

[jpkrohling]

Who's the TC sponsor for the performance benchmark WG?

[cartersocha]

Haven’t had a chance to find one yet. But would love suggestions or volunteers

[tylerbenson]

@arminru helped me with this. I think this can be closed now.

[arminru]

For future reference, these are steps we followed to set up and enroll a new runner in our org:

1. create the machine in Equinix
2. ssh into the machine by using the IP shown in the Equinix console
   • if your personal ssh key was in your Equinix profile at the time of machine creation, it will be in authorized_keys already
   • otherwise you can generate a temporary root password to log in and append your ssh key manually to authorized_keys
3. create a new user to execute the runner instead of root: adduser --disabled-password ghrunner
4. su ghrunner
5. follow instructions from https://github.com/organizations/open-telemetry/settings/actions/runners/new?arch=x64&os=linux
6. the config wizard asks for a group name - add the runner to "Benchmark Bare Metal Runners"
7. provide some name (e.g. github-benchmark-runner-<n>), no extra labels
8. ./run.sh to run it once and check if it succeeds
9. exit to go back to the root user
10. ./svc.sh install ghrunner to install the runner as a service
11. ./svc.sh start
12. check the Github UI at https://github.com/organizations/open-telemetry/settings/actions/runner-groups/8
    • --> the new runner should show up and report as "🟢 idle"