Upstream and replace github-actions-runner with `eks/actions-runner…

…-controller` (cloudposse#485)

* replaced github-actions-runner with eks/actions-runner-controller

* corrected variable description

* moved github-actions-runner to deprecrated, rather than deleted

* added README reference

* PR comments

* added documentation for github tokens

* corrected webhook_enabled

.pre-commit-config.yaml

@@ -6,8 +6,9 @@ repos:
  exclude: |
  (?x)^(
  modules/cert-manager/cert-manager-issuer/templates/.*.yaml |
- modules/github-actions-runner/runners/actions-runner/chart/templates/.*.yaml |
- modules/echo-server/charts/eks/echo-server/templates/.*.yaml
+ modules/eks/actions-runner-controller/charts/actions-runner/templates/.*.yaml |
+ modules/echo-server/charts/eks/echo-server/templates/.*.yaml |
+ deprecated/github-actions-runner/runners/actions-runner/chart/templates/.*.yaml
  )$
  - repo: https://github.com/antonbabenko/pre-commit-terraform
  rev: v1.71.0

modules/eks/actions-runner-controller/charts/actions-runner/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

modules/eks/actions-runner-controller/charts/actions-runner/Chart.yaml

@@ -0,0 +1,22 @@
+apiVersion: v2
+name: actions-runner
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This chart only deploys Resources for actions-runner-controller, so app version does not really apply.
+# We use Resource API version instead.
+appVersion: "v1alpha1"

modules/eks/actions-runner-controller/charts/actions-runner/templates/horizontalrunnerautoscaler.yaml

@@ -0,0 +1,35 @@
+apiVersion: actions.summerwind.dev/v1alpha1
+kind: HorizontalRunnerAutoscaler
+metadata:
+ name: {{ .Values.release_name }}
+spec:
+ # Runners in the targeted RunnerDeployment won't be scaled down
+ # for 5 minutes instead of the default 10 minutes now
+ scaleDownDelaySecondsAfterScaleOut: {{ .Values.scale_down_delay_seconds }}
+ scaleTargetRef:
+ name: {{ .Values.release_name }}
+ minReplicas: {{ .Values.min_replicas }}
+ maxReplicas: {{ .Values.max_replicas }}
+ {{- if .Values.pull_driven_scaling_enabled }}
+ metrics:
+ - type: PercentageRunnersBusy
+ scaleUpThreshold: {{ .Values.scale_up_threshold | quote }}
+ scaleDownThreshold: {{ .Values.scale_down_threshold | quote }}
+ {{- if .Values.scale_up_factor }}
+ scaleUpFactor: {{ .Values.scale_up_factor | quote }}
+ {{- else }}
+ scaleUpAdjustment: {{ .Values.scale_up_adjustment | quote }}
+ {{- end }}
+ {{- if .Values.scale_down_factor }}
+ scaleDownFactor: {{ .Values.scale_down_factor | quote }}
+ {{- else }}
+ scaleUpAdjustment: {{ .Values.scale_down_adjustment | quote }}
+ {{- end }}
+ {{- end }}
+ {{- if .Values.webhook_driven_scaling_enabled }}
+ scaleUpTriggers:
+ - githubEvent:
+ workflowJob: {}
+ amount: 1
+ duration: "{{ .Values.scale_down_delay_seconds }}s"
+ {{- end }}

modules/eks/actions-runner-controller/charts/actions-runner/templates/runnerdeployment.yaml

@@ -0,0 +1,47 @@
+apiVersion: actions.summerwind.dev/v1alpha1
+kind: RunnerDeployment
+metadata:
+ name: {{ .Values.release_name }}
+spec:
+ # Do not use `replicas` with HorizontalRunnerAutoscaler
+ # See https://github.com/actions-runner-controller/actions-runner-controller/issues/206#issuecomment-748601907
+ # replicas: 1
+ template:
+ spec:
+ # You could reserve nodes for runners by labeling and tainting nodes with
+ # node-role.kubernetes.io/actions-runner
+ # and then adding the following to this RunnerDeployment
+ #
+ # nodeSelector:
+ # node-role.kubernetes.io/actions-runner: ""
+ #
+ # tolerations:
+ # - effect: NoSchedule
+ # key: node-role.kubernetes.io/actions-runner
+ # operator: Exists
+
+ {{ if eq .Values.type "organization" }}
+ organization: {{ .Values.scope }}
+ {{ end }}
+ {{ if eq .Values.type "repository" }}
+ repository: {{ .Values.scope }}
+ {{ end }}
+ # You can use labels to create subsets of runners.
+ # See https://github.com/summerwind/actions-runner-controller#runner-labels
+ # and https://docs.github.com/en/free-pro-team@latest/actions/hosting-your-own-runners/using-self-hosted-runners-in-a-workflow
+ labels:
+ # It appears that the webhook autoscaler requires the runner deployment
+ # to explicitly include the "self-hosted" label in order to match the
+ # workflow_job to it.
+ - self-hosted
+ {{- range .Values.labels }}
+ - {{ . | quote }}
+ {{- end }}
+ # dockerdWithinRunnerContainer = false means access to a Docker daemon is provided by a sidecar container.
+ dockerdWithinRunnerContainer: {{ .Values.dind_enabled }}
+ image: {{ .Values.image | quote }}
+ imagePullPolicy: IfNotPresent
+ serviceAccountName: {{ .Values.service_account_name }}
+ resources:
+ {{- toYaml .Values.resources | nindent 8 }}
+