fix no camera available via udev

Author: rahul-thakoor

Dockerfile.template

@@ -1,7 +1,9 @@
 FROM balenalib/%%BALENA_MACHINE_NAME%%-debian:bullseye
 
 RUN install_packages \
+    libcamera-dev \
     libcamera-apps-lite \
+    python3 \
     v4l-utils
 
 WORKDIR /usr/src/app
@@ -10,4 +12,8 @@ COPY start.sh ./
 
 RUN chmod +x start.sh
 
+# RUN usermod -a -G video root
+
+ENV UDEV=on
+
 CMD ["sh","./start.sh"]

balena.yml

@@ -13,9 +13,10 @@ assets:
       url: ''        
 data:
   applicationConfigVariables:
-    - BALENA_HOST_CONFIG_gpu_mem: 64
+    - BALENA_HOST_CONFIG_gpu_mem: 128
     - BALENA_HOST_CONFIG_dtoverlay: "vc4-kms-v3d"
     - BALENA_HOST_CONFIG_camera_auto_detect: 1
+    - BALENA_HOST_CONFIG_max_framebuffers: 2
   defaultDeviceType: raspberry-pi
   supportedDeviceTypes:
     - raspberry-pi

docker-compose.yml

@@ -0,0 +1,13 @@
+version: "2.1"
+
+services:
+  libcamera:
+    build: ./
+    restart: always
+    privileged: true
+    # labels:
+    #   io.balena.features.kernel-modules: '1'
+    #   io.balena.features.firmware: '1'
+    # group_add:
+    #   - video
+

start.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 
-libcamera-hello --list-cameras
+udevadm control --reload
+
+libcamera-hello --list-cameras -n -v
 
 sleep infinity