feat(ops): define production Kubernetes resources

k8s/base/ci-rbac.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: ci-deployer
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: ci
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: ci-deployer
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: ci
+rules:
+  - apiGroups: [""]
+    resources: ["configmaps"]
+    resourceNames: ["buzz-sheet-config"]
+    verbs: ["get", "patch", "update"]
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources: ["pods/log"]
+    verbs: ["get"]
+  - apiGroups: ["apps"]
+    resources: ["deployments"]
+    resourceNames: ["buzz-sheet", "buzz-sheet-worker"]
+    verbs: ["get", "patch", "update"]
+  - apiGroups: ["apps"]
+    resources: ["replicasets"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["batch"]
+    resources: ["jobs"]
+    verbs: ["create", "get", "list", "watch", "delete"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: ci-deployer
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: ci
+subjects:
+  - kind: ServiceAccount
+    name: ci-deployer
+    namespace: buzz-sheet
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: ci-deployer

k8s/base/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: buzz-sheet-config
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+data:
+  BETTER_AUTH_URL: https://sheet.sudloh.com
+  BUZZ_DEMO_MODE: "false"
+  DATABASE_POOL_SIZE: "10"
+  HEALTHCHECK_TIMEOUT_MS: "2500"
+  NEXT_DEPLOYMENT_ID: replace-me
+  OUTBOX_BATCH_SIZE: "20"
+  OUTBOX_LEASE_MS: "30000"
+  OUTBOX_POLL_MS: "1000"
+  REDIS_CACHE_MAX_ENTRY_BYTES: "5242880"
+  REDIS_CACHE_PREFIX: buzz:next-cache
+  REDIS_EVENT_PREFIX: buzz:events
+  S3_REGION: auto
+  S3_VIRTUAL_HOSTED_STYLE: "false"

k8s/base/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: web
+spec:
+  replicas: 2
+  revisionHistoryLimit: 3
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: buzz-sheet
+      app.kubernetes.io/component: web
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: buzz-sheet
+        app.kubernetes.io/component: web
+    spec:
+      automountServiceAccountToken: false
+      terminationGracePeriodSeconds: 30
+      securityContext:
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: app
+          image: buzz-sheet-app
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: http
+              containerPort: 3000
+              protocol: TCP
+          envFrom:
+            - configMapRef:
+                name: buzz-sheet-config
+            - secretRef:
+                name: buzz-sheet-env
+          env:
+            - name: NEXT_DEPLOYMENT_ID
+              valueFrom:
+                configMapKeyRef:
+                  name: buzz-sheet-config
+                  key: NEXT_DEPLOYMENT_ID
+          resources:
+            requests:
+              cpu: 500m
+              memory: 512Mi
+            limits:
+              cpu: "1"
+              memory: 1Gi
+          startupProbe:
+            httpGet:
+              path: /api/health
+              port: http
+            failureThreshold: 30
+            periodSeconds: 2
+          readinessProbe:
+            httpGet:
+              path: /api/health?ready=1
+              port: http
+            failureThreshold: 3
+            periodSeconds: 10
+            timeoutSeconds: 4
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: http
+            failureThreshold: 3
+            periodSeconds: 20
+            timeoutSeconds: 3
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop: ["ALL"]
+            readOnlyRootFilesystem: true
+          volumeMounts:
+            - name: next-cache
+              mountPath: /app/.next/cache
+            - name: temporary
+              mountPath: /tmp
+      volumes:
+        - name: next-cache
+          emptyDir: {}
+        - name: temporary
+          emptyDir: {}

k8s/base/hpa.yaml

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+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: buzz-sheet
+  minReplicas: 2
+  maxReplicas: 6
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+    scaleUp:
+      stabilizationWindowSeconds: 30
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 70

k8s/base/ingress.yaml

@@ -0,0 +1,26 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+spec:
+  ingressClassName: traefik
+  tls:
+    - hosts:
+        - sheet.sudloh.com
+      secretName: sheet-sudloh-com-tls
+  rules:
+    - host: sheet.sudloh.com
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: buzz-sheet
+                port:
+                  number: 3000

k8s/base/kustomization.yaml

@@ -0,0 +1,17 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: buzz-sheet
+resources:
+  - namespace.yaml
+  - configmap.yaml
+  - deployment.yaml
+  - worker-deployment.yaml
+  - service.yaml
+  - ingress.yaml
+  - hpa.yaml
+  - pdb.yaml
+  - ci-rbac.yaml
+images:
+  - name: buzz-sheet-app
+    newName: registry.neko-piranha.ts.net/astral/buzz-sheet
+    newTag: replace-me

k8s/base/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet

k8s/base/pdb.yaml

@@ -0,0 +1,12 @@
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+spec:
+  minAvailable: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: buzz-sheet
+      app.kubernetes.io/component: web

k8s/base/service.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: buzz-sheet
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: web
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: web
+  ports:
+    - name: http
+      port: 3000
+      targetPort: http
+      protocol: TCP

k8s/base/worker-deployment.yaml

@@ -0,0 +1,65 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: buzz-sheet-worker
+  labels:
+    app.kubernetes.io/name: buzz-sheet
+    app.kubernetes.io/component: worker
+spec:
+  replicas: 1
+  revisionHistoryLimit: 3
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: buzz-sheet
+      app.kubernetes.io/component: worker
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: buzz-sheet
+        app.kubernetes.io/component: worker
+    spec:
+      automountServiceAccountToken: false
+      terminationGracePeriodSeconds: 35
+      securityContext:
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: worker
+          image: buzz-sheet-app
+          imagePullPolicy: IfNotPresent
+          command: ["bun", "worker/outbox-worker.js"]
+          envFrom:
+            - configMapRef:
+                name: buzz-sheet-config
+            - secretRef:
+                name: buzz-sheet-env
+          env:
+            - name: NEXT_DEPLOYMENT_ID
+              valueFrom:
+                configMapKeyRef:
+                  name: buzz-sheet-config
+                  key: NEXT_DEPLOYMENT_ID
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop: ["ALL"]
+            readOnlyRootFilesystem: true
+          volumeMounts:
+            - name: temporary
+              mountPath: /tmp
+      volumes:
+        - name: temporary
+          emptyDir: {}