[BUG] Kasm Wizard hangs and does not install the selected packages (unRAID 6.12.13)

[iambarney]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Kasm Wizard does not progress and shows a blank terminal screen no matter how long I wait. This appears selecting which applications I want installed on the preceding page. Refreshing the page returns me back to the beginning of the wizard where I'm prompted to agree to the terms and conditions.

Expected Behavior

Selected applications should be installed and the user can confirm this is progressing as expected by seeing a bunch of text appear on the black terminal screen as the selected applications are downloaded and installed.

Steps To Reproduce

1. Install the Kasm docker image via unRAID's "Apps" tab
2. Every part of the template is left at the default settings except for identifying where the appdata should be installed
3. Log into the Kasm webUI, accept the Ts and Cs, create admin and user profile passwords, select apps to install, click on 'Install selected apps' button then I'm presented with black terminal screen and nothing happens.
4. unRAID log shows the following immediately after installing the Docker container:
   Oct 8 16:08:11 Ares kernel: docker0: port 1(veth8d207d9) entered blocking state
   Oct 8 16:08:11 Ares kernel: docker0: port 1(veth8d207d9) entered disabled state
   Oct 8 16:08:11 Ares kernel: device veth8d207d9 entered promiscuous mode
   Oct 8 16:08:12 Ares kernel: eth0: renamed from vethd8a3948
   Oct 8 16:08:12 Ares kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth8d207d9: link becomes ready
   Oct 8 16:08:12 Ares kernel: docker0: port 1(veth8d207d9) entered blocking state
   Oct 8 16:08:12 Ares kernel: docker0: port 1(veth8d207d9) entered forwarding state

A quick Google search of some of the common terms above suggests that there may be other Docker installs using the same ports. This is not the case on my machine. unRAID does a good job at identifying if a port is being used by another container when you first install a new application. I didn't get this warning and manually checking all my Docker containers confirmed there are no issues of shared port usage.

Since removing the Kasm Docker container, I no longer see the error above in my unRAID logs.

Environment

- OS: unRAID 6.12.13
- How docker service was installed: unRAID's Community Apps

CPU architecture

x86-64

Docker creation

Screen shot provided in earlier section.

Container logs

WARNING! Using --password via the CLI is insecure. Use --password-stdin.
Get "https://registry-1.docker.io/v2/": unauthorized: incorrect username or password
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[migrations] started
[migrations] no migrations found
usermod: no changes
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