One of the pod recreation conditions has been modified to use hash of runner spec, so that the controller does not keep restarting pods mutated by admission webhooks. This naturally allows us, for example, to use IRSA for EKS that requires its admission webhook to mutate the runner pod to have additional, IRSA-related volumes, volume mounts and env.
Resolves#200
* Adds RUNNER_GROUP argument to the runner registration
Adds the ability to register a runner to a predefined runner_group
Resolves#137
* Update README with runner group example
- Updates the README with instructions of how to add the runner to a
group
- Fix code fencing for shell and yaml blocks in the README
- Use consistent bullet points (dash not asterisk)
* feat: Repository-wide RunnerDeployment Autoscaling
This adds `maxReplicas` and `minReplicas` to the RunnerDeploymentSpec. If and only if both fields are set, the controller computes and sets desired `replicas` automatically depending on the demand.
The number of demanded runner replicas is computed by `queued workflow runs + in_progress workflow runs` for the repository. The support for organizational runners is not included.
Ref https://github.com/summerwind/actions-runner-controller/issues/10
I had observed athe exact issue seen for the 4th option described in https://github.com/elastic/cloud-on-k8s/issues/1822, which resulted in actions-runner-controller is unable to create nor update runners. This fixes that.
I've also updated README to introduce RunnerDeployment and manually tested it to work after the fix.
---
`actions-runner-controller` has been failing while creating and updating runners:
```
2020-03-05T11:05:16.610+0900 ERROR controllers.Runner Failed to update runner {"runner": "default/example-runner", "error": "Runner.actions.summerwind.dev \"example-runner\" is invalid: []: Invalid value: map[string]interface {}{\"apiVersion\":\"actions.summerwind.dev/v1alpha1\", \"kind\":\"Runner\", \"metadata\":map[string]interface {}{\"creationTimestamp\":\"2020-03-05T02:05:16Z\", \"finalizers\":[]interface {}{\"runner.actions.summerwind.dev\"}, \"generation\":2, \"name\":\"example-runner\", \"namespace\":\"default\", \"resourceVersion\":\"911496\", \"selfLink\":\"/apis/actions.summerwind.dev/v1alpha1/namespaces/default/runners/example-runner\", \"uid\":\"48b62d07-ff2c-42d6-878c-d3f951202209\"}, \"spec\":map[string]interface {}{\"env\":interface {}(nil), \"image\":\"\", \"repository\":\"mumoshu/actions-runner-controller-ci\"}}: validation failure list:\nspec.env in body must be of type array: \"null\""}
github.com/go-logr/zapr.(*zapLogger).Error
/Users/c-ykuoka/go/pkg/mod/github.com/go-logr/zapr@v0.1.0/zapr.go:128
github.com/summerwind/actions-runner-controller/controllers.(*RunnerReconciler).Reconcile
/Users/c-ykuoka/p/actions-runner-controller/controllers/runner_controller.go:88
```
This seems like the exact issue seen in the 4th option in https://github.com/elastic/cloud-on-k8s/issues/1822
I also observed the same issue is failing while the runnerset controller is trying to create/update runners:
```
Also while creating runner in the runnerset controller:
2020-03-05T11:15:01.223+0900 ERROR controller-runtime.controller Reconciler error {"controller": "runnerset", "request": "default/example-runnerset", "error": "Runner.actions.summerwind.dev \"example-runnersetgp56m\" is invalid: []: Invalid value: map[string]interface {}{\"apiVersion\":\"actions.summerwind.dev/v1alpha1\", \"kind\":\"Runner\", \"metadata\":map[string]interface {}{\"creationTimestamp\":\"2020-03-05T02:15:01Z\", \"generateName\":\"example-runnerset\", \"generation\":1, \"name\":\"example-runnersetgp56m\", \"namespace\":\"default\", \"ownerReferences\":[]interface {}{map[string]interface {}{\"apiVersion\":\"actions.summerwind.dev/v1alpha1\", \"blockOwnerDeletion\":true, \"controller\":true, \"kind\":\"RunnerSet\", \"name\":\"example-runnerset\", \"uid\":\"e26f7d01-3168-496d-931b-8e6f97b776ea\"}}, \"uid\":\"4ee490f5-9a8c-4f30-86f9-61dea799b972\"}, \"spec\":map[string]interface {}{\"env\":interface {}(nil), \"image\":\"\", \"repository\":\"mumoshu/actions-runner-controller-ci\"}}: validation failure list:\nspec.env in body must be of type array: \"null\""}
github.com/go-logr/zapr.(*zapLogger).Error
```
and while the runnerdeployment controller is trying to create/update runners.
I've fixed it so that the new `RunnerDeployment` example added to README just works.