CI on planet

[wipfli]

I rent a hetzner 12 core 128 gb dedicated host. Sometimes I do planet rendering runs but most of the time it sits idle.

We could use this machine for planet scale ci if you are interested, @msbarry.

[msbarry]

Cool thanks! What do you think would make the most sense? Run it nightly against main? Or try to run against branches?

[wipfli]

I think the instance could only handle on run at a time, and the openmaptiles profile would take roughly 6 hours to complete. So a nightly run could make sense based on the code in main. What do you think?

[wipfli]

I will see if I can set it up on my planetiler fork and if it works, I share the results here...

[msbarry]

OK that sounds good to me! Feel free to submit a PR, or let me know if I need to add any credentials to the repo to get this to work.

[wipfli]

Monaco on workflow_dispatch worked well. Now I am running it on the planet in my fork:

https://github.com/wipfli/planetiler/actions/runs/4450904601/jobs/7816916993

Let's see how that goes...

[wipfli]

Run out of disk space. Cleaned up some files and here is the new run: https://github.com/wipfli/planetiler/actions/runs/4450904601/jobs/7817607121

[wipfli]

After 4h36min yesterday's planet run on my github actions self hosted runner finished. See above link for details. The workflow uploads log.txt containing all the planetiler log output as an artifact.

What whould I do now? Should I check the the log file does not contain any warnings or errors?

[msbarry]

Hmm I guess what I'd be interested in is if it finishes successfully, the summary of timings at the end, and any warnings/errors it emits (except for maybe tile size warnings). This prints all of the warnings for me:

cat logs.txt | grep -E '^[:0-9]+ [^DI]' | grep -v uncompressed

And this is what I use to create a file with the summary when I test each branch:

cat logs.txt | sed -n '/^.*Tile stats/,$p' > branchsummary.txt
cat logs.txt | sed -n '/^.*Exception in thread/,$p' >> branchsummary.txt

I'm not sure what it would make sense to do with those logs though? Since it's not attached to a PR that it can post them to or anything...

[wipfli]

I am not sure what to do with them either. Since the compute is not sufficient for running on every push to main or even push to pull request, I think running it periodically is the best solution.

We could define some criteria for failure such that the workflow would exit as failed and create an alert notification. Some criteria for failure which come to mind are:

• produces an error
• produces a warning, or type of warning, or more warnings than usual
• is significantly slower than usual

In general, I think it would be cool to have some automatic alerts for things like #511

[msbarry]

Hmm I wonder if it could create a new issue on warnings or failures, keep updating the issue each time it runs until you close it then open a new issue if it fails later?

Alternatively it could send an email or slack notification? Or if the action just fails will people subscribed to the repo get an email?

[wipfli]

When actions fail on my repos, I get a notification at github.com/notifications. You can subscribe to those by email but I found checking the github notifications page is easier.

I think it would be enough to get the notification from the failed workflow run.

[msbarry]

Sounds good to me!