feat: add gitea actions runner deployment configuration

cluster/apps/gitea/gitea-act.yml

@@ -0,0 +1,58 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: gitea-actions-runner
+  namespace: default
+  labels:
+    app: gitea-actions-runner
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: gitea-actions-runner
+  template:
+    metadata:
+      labels:
+        app: gitea-actions-runner
+    spec:
+      initContainers:
+      - name: wait-for-gitea
+        image: busybox
+        command: ['sh', '-c', 'until nslookup gitea-service 3011; do echo waiting for gitea; sleep 2; done']
+      containers:
+      - name: runner
+        image: gitea/act_runner:latest
+        env:
+        - name: GITEA_INSTANCE_URL
+          value: "http://gitea-service:3011/"
+        - name: GITEA_RUNNER_REGISTRATION_TOKEN
+          valueFrom:
+            secretKeyRef:
+              name: gitea-runner-token
+              key: token
+        - name: GITEA_RUNNER_NAME
+          value: "k3s-dind-runner"
+        - name: GITEA_RUNNER_LABELS
+          value: "ubuntu-latest:docker://node:16-bullseye,ubuntu-22.04:docker://node:16-bullseye,ubuntu-20.04:docker://node:16-bullseye"
+        volumeMounts:
+        - name: var-run
+          mountPath: /var/run
+      - name: dind
+        image: docker:dind
+        securityContext:
+          privileged: true
+        env:
+        - name: DOCKER_TLS_CERTDIR
+          value: ""
+        volumeMounts:
+        - name: dind-storage
+          mountPath: /var/lib/docker
+        - name: var-run
+          mountPath: /var/run
+      volumes:
+      - name: dind-storage
+        persistentVolumeClaim:
+          claimName: longhorn-gitea-dind
+      - name: var-run
+        emptyDir: {}