Changes:
- Switched to use `jq` in startup.sh
- Enable docker registry mirror configuration which is useful when e.g. avoiding the Docker Hub rate-limiting
Check #478 for how this feature is tested and supposed to be used.
* chore: adding Helm app version back
* chore: removing redundant values entry
* chore: bumping to newer version
* chore: bumping app version to latest
Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>
Enable the user to set a limit size on the volume of the runner to avoid some runner pod affecting other resources of the same cluster
Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>
* Cache docker images locally
Cache dind, runner, and kube-rbac-proxy docker image on the host and copy onto the kind node instead of downloading it to the node directly.
* Also cache certmanager docker images
Images for `actions-runner:v${VERSION}` and `actions-runner:latest` tags are upgraded to Ubuntu 20.04.
If you would like not to upgrade Ubuntu in the runner image in the future, migrate to new tags suffixed with `-ubuntu-20.04` like`actions-runner:v${VERSION}-ubuntu-20.04`.
We also keep publishing the existing Ubuntu 18.04 images with new `actions-runner:v${VERSION}-ubuntu-18.04` tags. Please use it when it turned out that you had workflows dependent on Ubuntu 18.04.
Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>
Prevents arguments from being split when e.g. the RUNNER_GROUP variable contains spaces (which is legit. One can create such groups in GitHub).
I've seen that all workers with group names that contain no spaces can register successfully, while all workers with groups that contain spaces will not register.
Furthermore, I suppose also other chars can be used here to inject arbitrary commands in an unsupported way via e.g. pipe symbol.
Quoting the vars correctly should prevent that and allow for e.g. group names and runner labels with spaces and other bash reserved characters.
This makes logging more concise by changing logger names to something like `controllers.Runner` to `actions-runner-controller.runner` after the standard `controller-rutime.controller` and reducing redundant logs by removing unnecessary requeues. I have also tweaked log messages so that their style is more consistent, which will also help readability. Also, runnerreplicaset-controller lacked useful logs so I have enhanced it.
As part of #282, I have introduced some caching mechanism to avoid excessive GitHub API calls due to the autoscaling calculation involving GitHub API calls is executed on each Webhook event.
Apparently, it was saving the wrong value in the cache- The value was one after applying `HRA.Spec.{Max,Min}Replicas` so manual changes to {Max,Min}Replicas doesn't affect RunnerDeployment.Spec.Replicas until the cache expires. This isn't what I had wanted.
This patch fixes that, by changing the value being cached to one before applying {Min,Max}Replicas.
Additionally, I've also updated logging so that you observe which number was fetched from cache, and what number was suggested by either TotalNumberOfQueuedAndInProgressWorkflowRuns or PercentageRunnersBusy, and what was the final number used as the desired-replicas(after applying {Min,Max}Replicas).
Follow-up for #282
Since #392, the runner controller could have taken unexpectedly long time until it finally notices that the runner has been registered to GitHub. This patch fixes the issue, so that the controller will notice the successful registration in approximately 1 minute(hard-coded).
More concretely, let's say you had configured a long sync-period of like 10m, the runner controller could have taken approx 10m to notice the successful registration. The original expectation was 1m, because it was intended to recheck every 1m as implemented in #392. It wasn't working as such due to my misunderstanding in how requeueing work.
We occasionally encountered those errors while the underlying RunnerReplicaSet is being recreated/replaced on RunnerDeployment.Spec.Template update. It turned out to be due to that the RunnerDeployment controller was waiting for the runner pod becomes `Running`, intead of the new replacement runner to have registered to GitHub. This fixes that, by trying to Runner.Status.Phase to `Running` only after the runner in the runner pod appears to be registered.
A side-effect of this change is that runner controller would call more "ListRunners" GitHub Actions API. I've reviewed and improved the runner controller code and Runner CRD to make make the number of calls minimum. In most cases, ListRunners should be called only twice for each runner creation.
This allows you to trigger autoscaling depending on check_run names(i.e. actions job names). If you are willing to differentiate scale amount only for a specific job, or want to scale only on a specific job, try this.
