Update - 3 June 2023

The links listed below for OpenJDK-8 no longer works.  Omada SDN Controller will run on OpenJDK-11, but that requires JSVC 1.1.0 which is not in the official Raspberry Pi OS repos.  It is possible to solve the dependecies to install JSVC 1.1.0, but I have not had time to update the instructions

Also see this FAQ with good info about installing the Omada SDN Controller on a number of Linux distros.

Update - 22 January 2023

Bare metal install on 64 bit Raspberry Pi OS - no Ubuntu server, no Docker.  Tested with version 4 and now the latest version 5.7.4 of the Controller software. I have it running on a Model 3B+ with 1G RAM.  Also running on Model 4 w/ 4G RAM.

Links have been updated and verified on most recent install

Instructions:

1. Download & install latest 64 bit version of Raspberry pi OS to new sd card of your choice from the link below. 
    https://downloads.raspberrypi.org/raspios_arm64/images/
    This is not a guide to installing Raspberry Pi OS so I won't provide detailed instructions on that.

2. Download and install version 4.4.18 of MongoDB mongodb-server from https://www.mongodb.com/download-center/community/releases/archive
   wget https://repo.mongodb.org/apt/ubuntu/dists/focal/mongodb-org/4.4/multiverse/binary-arm64/mongodb-org-server_4.4.18_arm64.deb
   sudo apt install /home/pi/mongodb-org-server_4.4.18_arm64.deb

   Note this post explaining that MongoDB V4.4.19 will not work.

3. Mongodb server would normally be run as a service by doing the following commands  
   sudo systemctl daemon-reload
   sudo systemctl enable mongod
   sudo systemctl start mongod
   In this case not required, as Omada controller starts the server as required.
   
4. Check that curl is installed

   apt list curl

5. Download and install openjdk-8-jre
   wget http://security.debian.org/debian-security/pool/updates/main/o/openjdk-8/openjdk-8-jre-headless_8u332-ga-1~deb9u1_arm64.deb
   sudo apt install /home/pi/openjdk-8-jre-headless_8u332-ga-1~deb9u1_arm64.deb

6. Install jsvc
   sudo apt install jsvc
   
6. If you install JSVC before OpenJDK-8-JRE then JSVC by default installs openjdk-11-jre, which does not work with Omada controller.

7. If you have both OpenJDK-8-JRE and OpenJDK-11-JRE installed then you need to tell system which java to use
   sudo update-alternatives --config java

  Selection    Path                                            Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/java-11-openjdk-arm64/bin/java      1111      auto mode
  1            /usr/lib/jvm/java-11-openjdk-arm64/bin/java      1111      manual mode
* 2            /usr/lib/jvm/java-8-openjdk-arm64/jre/bin/java   1081      manual mode

Press <enter> to keep the current choice[*], or type selection number:

   Now select Option 2 pointing to java-8

8. Download and install latest version Omada SDN controller
   wget https://static.tp-link.com/upload/software/2022/202211/20221121/Omada_SDN_Controller_v5.7.4_Linux_x64.deb
   sudo apt install /home/pi/Omada_SDN_Controller_v5.7.4_Linux_x64.deb

If all went well the controller should start and you should get the following message

Install Omada Controller succeeded!
==========================
Omada Controller will start up with system boot. You can also control it by [/usr/bin/tpeap].
check omada
Starting Omada Controller. Please wait.........................................................................................................................
Started successfully.
You can visit http://localhost:8088 on this host to manage the wireless network.
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