feat: initial landing page with K8s deploy config

- Nginx static serving with APP_URL env var
- K8s manifests for prod and staging
- Gitea Actions CI/CD pipeline

k8s/prod.yaml

@@ -0,0 +1,52 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: batida-landing
+  namespace: prod
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: batida-landing
+  template:
+    metadata:
+      labels:
+        app: batida-landing
+    spec:
+      tolerations:
+        - key: prod
+          operator: Equal
+          value: "true"
+          effect: NoSchedule
+      nodeSelector:
+        dedicated: prod
+      containers:
+        - name: batida-landing
+          image: git.batida.io/batida/batida-landing:latest
+          ports:
+            - containerPort: 80
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 5
+            periodSeconds: 30
+          resources:
+            requests:
+              memory: "16Mi"
+              cpu: "10m"
+            limits:
+              memory: "64Mi"
+              cpu: "100m"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: batida-landing
+  namespace: prod
+spec:
+  selector:
+    app: batida-landing
+  ports:
+    - port: 80
+      targetPort: 80

k8s/staging.yaml

@@ -0,0 +1,52 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: batida-landing
+  namespace: staging
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: batida-landing
+  template:
+    metadata:
+      labels:
+        app: batida-landing
+    spec:
+      tolerations:
+        - key: staging
+          operator: Equal
+          value: "true"
+          effect: NoSchedule
+      nodeSelector:
+        dedicated: staging
+      containers:
+        - name: batida-landing
+          image: git.batida.io/batida/batida-landing:staging-latest
+          ports:
+            - containerPort: 80
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 5
+            periodSeconds: 30
+          resources:
+            requests:
+              memory: "16Mi"
+              cpu: "10m"
+            limits:
+              memory: "64Mi"
+              cpu: "100m"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: batida-landing
+  namespace: staging
+spec:
+  selector:
+    app: batida-landing
+  ports:
+    - port: 80
+      targetPort: 80