From 572844bc738fa775ddbb0b420caf6fce44ed06b6 Mon Sep 17 00:00:00 2001
From: nobswebdev <nobswebdev@noreply.git.nobswebdev.com>
Date: Sun, 27 Sep 2026 23:06:19 +0200
Subject: [PATCH] add backend Docker dev service with hot reload.

Wire Nest into dev compose with src bind mount and health-check probe.
---
 backend/Dockerfile.dev | 13 +++++++++++++
 docker-compose.dev.yml | 22 ++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 backend/Dockerfile.dev

diff --git a/backend/Dockerfile.dev b/backend/Dockerfile.dev
new file mode 100644
index 0000000..40195d9
--- /dev/null
+++ b/backend/Dockerfile.dev
@@ -0,0 +1,13 @@
+FROM node:20-alpine
+
+WORKDIR /backend
+
+RUN apk add --no-cache curl
+
+COPY package*.json .
+
+RUN npm ci
+
+COPY . .
+
+CMD ["npm", "run", "start:dev"]
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index fc949aa..1d0d394 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -30,6 +30,28 @@ services:
             postgres:
                 condition: service_healthy
 
+    backend:
+        build:
+            context: ./backend
+            dockerfile: Dockerfile.dev
+        container_name: ${COMPOSE_PROJECT_NAME}_backend
+        restart: unless-stopped
+        depends_on:
+            postgres:
+                condition: service_healthy
+        env_file:
+            - .env.dev
+        ports:
+            - '${BACKEND_PORT}:${BACKEND_PORT}'
+        volumes:
+            - ./backend/src:/backend/src
+        healthcheck:
+            test: ['CMD-SHELL', 'curl -f http://backend:${BACKEND_PORT}/api/health-check/']
+            interval: 1s
+            timeout: 30s
+            retries: 20
+            start_period: 10s
+
 volumes:
     private_image_postgres_data:
     private_image_pgadmin_data: