feat: Add feature to enable dynamic instance types via workflow labels

[npalm]

Description

This PR adds an option to define the required instance type via the workflow labels. This could be all tricky, since in the end GH decides which workflo runs on a runner.

By adding a label to the workflow starting with ghr-ec2- and followed by the instance type a runenr for the required instance type is caled (only if the teature is enabled).

For example: ghr-ec2-m5.xlarge

Limitiation

• No support for pool (since not scaled by eventts)

Status

Early draft, just a POC, no tests, no docs, requires rerfactoing.

Todo

• Decide if this should enter the main line? If yes
• Refactor feature config to an object, containing enable and prefix
• Add docs including limitations
• Add unit tests
• Adjust an example, enable feature. Ephemeral case with job retry.
• Adjust logging

[github-actions]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed if no further activity occurs. Thank you for your contributions.

[edersonbrilhante]

@npalm can you revisit? This feature is a great addition to the project

[github-actions]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed if no further activity occurs. Thank you for your contributions.

[npalm]

@npalm can you revisit? This feature is a great addition to the project

due to lack of time, it is still in this state. @edersonbrilhante let me know if you have interest to collaborate on the feature. Feel free to DM me on discord.

[edersonbrilhante]

I have interest in help with this feature. We could extend this to AMI name, ami owner, ami kms key, volume, etc.
Allowing to override many ec2 options dynamically.
But would be nice to have a boundary rule(allowed owners, allowed ami filters, volume size, etc)

[npalm]

created a thread on discord to discuss the PR and directions:
https://discord.com/channels/1308914716847898644/1445743650280702072

[edersonbrilhante]

I don't have access. Can I join?