Add health check and fix dangerous checks

- docker-compose: added service health checks

- dockerfile: added if logic for sed command so missing files do not cause build fail

- entrypoint.celery: change migration detection to not continue until ALL migrations are applied

- entrypoint: trim django key and change external postgres check to python in case postgres binaries are missing

docker/Dockerfile

@@ -30,10 +30,12 @@ WORKDIR /app
 COPY . /app
 # Copy nginx configuration
 COPY ./docker/nginx.conf /etc/nginx/sites-enabled/default
-# Verify entrypoint scripts exist, fix line endings, and make them executable
-RUN ls -la /app/docker/entrypoint*.sh && \
-    sed -i 's/\r$//' /app/docker/entrypoint.sh /app/docker/entrypoint.celery.sh /app/docker/entrypoint.aio.sh && \
-    chmod +x /app/docker/entrypoint.sh /app/docker/entrypoint.celery.sh /app/docker/entrypoint.aio.sh
+# Fix line endings and make entrypoint scripts executable
+RUN for f in /app/docker/entrypoint*.sh; do \
+        if [ -f "$f" ]; then \
+            sed -i 's/\r$//' "$f" && chmod +x "$f"; \
+        fi; \
+    done
 # Clean out existing frontend folder
 RUN rm -rf /app/frontend
 # Copy built frontend assets

docker/docker-compose.yml

@@ -7,8 +7,10 @@ services:
     volumes:
       - ./data:/data
     depends_on:
-      - db
-      - redis
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
     environment:
       - DISPATCHARR_ENV=modular
       - POSTGRES_HOST=db
@@ -50,9 +52,12 @@ services:
     image: ghcr.io/dispatcharr/dispatcharr:latest
     container_name: dispatcharr_celery
     depends_on:
-      - db
-      - redis
-      - web
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      web:
+        condition: service_started
     volumes:
       - ./data:/data
     extra_hosts:
@@ -85,10 +90,20 @@ services:
       - POSTGRES_PASSWORD=secret
     volumes:
       - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U dispatch -d dispatcharr"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
 
   redis:
     image: redis:latest
     container_name: dispatcharr_redis
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
 
 volumes:
   postgres_data:

docker/entrypoint.celery.sh

@@ -7,11 +7,11 @@ source /dispatcharrpy/bin/activate
 # Wait for Django secret key
 echo 'Waiting for Django secret key...'
 while [ ! -f /data/jwt ]; do sleep 1; done
-export DJANGO_SECRET_KEY=$(cat /data/jwt)
+export DJANGO_SECRET_KEY="$(tr -d '\r\n' < /data/jwt)"
 
-# Wait for migrations to complete
+# Wait for migrations to complete (check that NO unapplied migrations remain)
 echo 'Waiting for migrations to complete...'
-until python manage.py showmigrations 2>&1 | grep -q '\[X\]'; do
+until ! python manage.py showmigrations 2>&1 | grep -q '\[ \]'; do
     echo 'Migrations not ready yet, waiting...'
     sleep 2
 done

docker/entrypoint.sh

@@ -66,7 +66,7 @@ PY
   mv -f "$tmpfile" "$SECRET_FILE" || { echo "move failed"; rm -f "$tmpfile"; exit 1; }
   umask $old_umask
 fi
-export DJANGO_SECRET_KEY="$(cat "$SECRET_FILE")"
+export DJANGO_SECRET_KEY="$(tr -d '\r\n' < "$SECRET_FILE")"
 
 # Process priority configuration
 # UWSGI_NICE_LEVEL: Absolute nice value for uWSGI/streaming (default: 0 = normal priority)
@@ -174,9 +174,20 @@ if [[ "$DISPATCHARR_ENV" != "modular" ]]; then
     pids+=("$postgres_pid")
 else
     echo "🔗 Modular mode: Using external PostgreSQL at ${POSTGRES_HOST}:${POSTGRES_PORT}"
-    # Wait for external PostgreSQL to be ready
+    # Wait for external PostgreSQL to be ready using Python (no pg_isready needed)
     echo_with_timestamp "Waiting for external PostgreSQL to be ready..."
-    until su - postgres -c "$PG_BINDIR/pg_isready -h ${POSTGRES_HOST} -p ${POSTGRES_PORT}" >/dev/null 2>&1; do
+    until python3 -c "
+import socket
+import sys
+try:
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.settimeout(2)
+    s.connect(('${POSTGRES_HOST}', ${POSTGRES_PORT}))
+    s.close()
+    sys.exit(0)
+except Exception:
+    sys.exit(1)
+" 2>/dev/null; do
         echo_with_timestamp "Waiting for PostgreSQL at ${POSTGRES_HOST}:${POSTGRES_PORT}..."
         sleep 1
     done