support db migrations

compose.yaml

@@ -1,6 +1,6 @@
 services:
   web.mongo:
-    image: git.loyso.art/devsim:latest
+    image: git.loyso.art/devsim-web:latest
     ports:
       - 9124:80
     depends_on:
@@ -11,16 +11,26 @@ services:
       DEVSIM_STORE_TYPE: mongo
 
   web.pg:
-    image: git.loyso.art/devsim:latest
+    image: git.loyso.art/devsim-web:latest
     ports:
       - 9123:80
     depends_on:
       - postgres
       - mongo
+      - postgres-migrator
     environment:
       DEVSIM_PG_DSN: "postgres://devsim:devsim@postgres:5432/devsim?sslmode=disable"
       DEVSIM_STORE_TYPE: pg
 
+  postgres-migrator:
+    image: git.loyso.art/devsim-migrator:latest
+    depends_on:
+      postgres:
+        condition: service_healthy
+        restart: true
+    environment:
+      DEVSIM_PG_DSN: "postgres://devsim:devsim@postgres:5432/devsim?sslmode=disable"
+
   postgres:
     image: postgres:15-alpine
     environment:
@@ -28,6 +38,12 @@ services:
       POSTGRES_PASSWORD: devsim
       POSTGRES_USER: devsim
     ports: ["5432:5432"]
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U devsim -d devsim"]
+      interval: 10s
+      retries: 5
+      start_period: 30s
+      timeout: 10s
 
   mongo:
     image: mongo:7