Add camera in gazebo classic / publish ros2

I tried to add camera on iris and i did it.
but, I could not receive image ros2 topic.

Does any one know how to get and publish ros2 topic?

PX4 version : 1.14.0
Gazebo : Gazebo classic
ROS2 : Humble

Have you tried GitHub - gazebosim/ros_gz: Integration between ROS (1 and 2) and Gazebo simulation?

Thank you for reply!

But that is package for gazebo ignition.
Do you know how to publish camera ros2 topic in gazebo classic?