feat: add Semaphore deployment, database, services, and persistent volume claim

cluster/apps/semaphore/semaphore.yml

@@ -0,0 +1,51 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: semaphore
+  namespace: default
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: semaphore
+  template:
+    metadata:
+      labels:
+        app: semaphore
+    spec:
+      initContainers:
+      - name: wait-for-db
+        image: busybox
+        command:
+        - sh
+        - -c
+        - |
+          until nc -z -v -w30 semaphore-db-service 3306; do
+            echo "Waiting for database to be ready..."
+            sleep 2
+          done
+      containers:
+      - name: semaphore
+        image: semaphoreui/semaphore:v2.13.13
+        ports:
+        - containerPort: 3000
+        envFrom:
+        - configMapRef:
+            name: semaphore-config
+        env:
+        - name: SEMAPHORE_ADMIN_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: semaphore-secrets
+              key: admin_password
+        - name: SEMAPHORE_DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: semaphore-secrets
+              key: mysql_password
+        - name: SEMAPHORE_ACCESS_KEY_ENCRYPTION
+          valueFrom:
+            secretKeyRef:
+              name: semaphore-secrets
+              key: key