Added semaphore docker stack

docker-stacks/app-server/semaphore.yml

@@ -0,0 +1,24 @@
+services:
+  semaphore:
+    image: semaphoreui/semaphore:latest
+    container_name: semaphore
+    restart: unless-stopped
+    ports:
+      - "{PORT}:3000"
+    environment:
+      SEMAPHORE_DB_USER: {SEMAPHORE_DB_USER}
+      SEMAPHORE_DB_PASS: {SEMAPHORE_PASSWORD}
+      SEMAPHORE_DB_HOST: {SEMAPHORE_DB_HOST}
+      SEMAPHORE_DB_PORT: 5432
+      SEMAPHORE_DB_DIALECT: postgres
+      SEMAPHORE_DB: {SEMAPHORE_DB_NAME}
+      
+      SEMAPHORE_ADMIN: {SEMAPHORE_ADMIN_USERNAME}
+      SEMAPHORE_ADMIN_PASSWORD: {SEMAPHORE_ADMIN_PASSWORD}
+      SEMAPHORE_ADMIN_NAME: Administrator
+      SEMAPHORE_ADMIN_EMAIL: {SEMAPHORE_ADMIN_EMAIL}
+      
+      SEMAPHORE_ACCESS_KEY_ENCRYPTION: {SEMAPHORE_ACCESS_KEY_ENCRYPTION}
+      
+    volumes:
+      - /tmp/semaphore:/tmp/semaphore