unraid to swarm migration

stacks/core/postgres/stack.yml

@@ -0,0 +1,27 @@
+services:
+  postgresSQL:
+    image: postgres:17-alpine
+    networks:
+    - homelab
+    environment:
+    - POSTGRES_USER=admin
+    - POSTGRES_PASSWORD=AllOfTheStars+1
+    - PGDATA=/var/lib/postgresql/data
+    volumes:
+    - /home/doc/projects/unraid-appdata/postgres:/var/lib/postgresql/data
+    ports:
+    - target: 5432
+      published: 5434
+      mode: host
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready -U admin -d postgres" ]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+    deploy:
+      replicas: 1
+
+networks:
+  homelab:
+    external: true