You do not need to install the ZEDSDK because this is done by Dockerfile.zed.
Note
You must install the ZEDdriver.
Plug in the USB cable of your ZED camera before launching the Docker container in the next step.
Configure the container created by isaac_ros_common/scripts/run_dev.sh to include Dockerfile.zed. Create the .isaac_ros_common-config file in the isaac_ros_common/scripts directory:
This rebuilds the container image using Dockerfile.zed in one of its layered stage. It takes some time for rebuilding.
After the container image is rebuilt and you are inside the container, you can run /usr/local/zed/tools/ZED_Explorer to check that the ZED camera is connected.
/usr/local/zed/tools/ZED_Explorer
If everything is working as expected, you should see something similar to the following: