Cannot change http and https ports

[tfroidcoeur]

using the ubuntu 24.04 snap. I already have a services running on ports 8080 and 8843, so I want openhab to use different ports (I temporarily disabled those services while installing openhab).

$ sudo snap install openhab
openhab 4.1.1 from openHAB Foundation e.V. (openhab) installed

I need to change the http port, so

$ sudo snap set openhab openhab.http-port.value='8088'
2024-06-01T10:16:49+02:00 INFO Waiting for "snap.openhab.openhab.service" to stop.
$ sudo snap set openhab openhab.https-port.value='8843'
2024-06-01T10:18:40+02:00 INFO Waiting for "snap.openhab.openhab.service" to stop.

but the service is still configured on port 8080/8443:

$ sudo ss -tlpn | grep -e 8080 -e 8088 -e 8843 -e 8443
LISTEN 0      50                            *:8080             *:*    users:(("java",pid=472890,fd=155))                                                                                                                                             
LISTEN 0      50                            *:8443             *:*    users:(("java",pid=472890,fd=53))    

$ sudo snap logs openhab
2024-06-01T10:23:26+02:00 openhab.openhab[470584]: /snap/openhab/2629/runtime/bin/stop: 81: [: {: unexpected operator
2024-06-01T10:23:26+02:00 openhab.openhab[470584]: /snap/openhab/2629/runtime/bin/karaf: 75: [: {: unexpected operator
2024-06-01T10:23:26+02:00 openhab.openhab[470584]: /snap/openhab/2629/runtime/bin/karaf: 81: [: {: unexpected operator
2024-06-01T10:23:55+02:00 systemd[1]: snap.openhab.openhab.service: Deactivated successfully.
2024-06-01T10:23:55+02:00 systemd[1]: Stopped snap.openhab.openhab.service - Service for snap application openhab.openhab.
2024-06-01T10:23:55+02:00 systemd[1]: snap.openhab.openhab.service: Consumed 47.830s CPU time, 605.6M memory peak, 0B memory swap peak.
2024-06-01T10:23:55+02:00 systemd[1]: Started snap.openhab.openhab.service - Service for snap application openhab.openhab.
2024-06-01T10:24:00+02:00 openhab.openhab[471764]: openHAB is not running, check if influxdb should be started/stopped
2024-06-01T10:24:01+02:00 openhab.openhab[471764]: /snap/openhab/2629/runtime/bin/karaf: 75: [: {: unexpected operator
2024-06-01T10:24:01+02:00 openhab.openhab[471764]: /snap/openhab/2629/runtime/bin/karaf: 81: [: {: unexpected operator

apparently 8088 is the port internally used by influxdb, at least I think thats why this fails:

/snap/openhab/current/conf/influxdb.conf:# bind-address = "127.0.0.1:8088"

I guess it would be good to at least document that this port is reserved

I started over again:

$ sudo snap remove openhab
$ sudo snap install openhab
$ sudo snap set openhab openhab.http-port.value='8082'
$ sudo snap set openhab openhab.https-port.value='8843'

it was still using ports 8080 and 8843. I tried to restart, getting error messages mostly:

$ openhab.stop
/snap/openhab/2629/runtime/bin/stop: 75: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/stop: 81: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/karaf: 75: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/karaf: 81: [: {: unexpected operator
$ openhab.start
/snap/openhab/2629/runtime/bin/karaf: 75: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/karaf: 81: [: {: unexpected operator
There is a Root instance already running with name openhab and pid 494419. If you know what you are doing and want to force the run anyway, export CHECK_ROOT_INSTANCE_RUNNING=false and re run the command.
fraco@froidcoeur-pc:~/ws/openhab-snap$ sudo snap restart openhab
2024-06-01T10:36:33+02:00 INFO Waiting for "snap.openhab.openhab.service" to stop.
Restarted.
$ openhab.status
/snap/openhab/2629/runtime/bin/status: 75: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/status: 81: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/karaf: 75: [: {: unexpected operator
/snap/openhab/2629/runtime/bin/karaf: 81: [: {: unexpected operator

but still running on port 8080/8843

[aryanmandal20]

1. Clear Previous Configuration:

First, ensure that no previous configurations or services are preventing the new port configurations from being applied.

• Remove the current snap installation:

  sudo snap remove openhab

• Clear any residual configurations (especially for ports):

  sudo rm -rf /snap/openhab

This ensures a fresh start without lingering configurations from previous installations.

---

2. Reinstall OpenHAB:

Now, let's install OpenHAB from Snap again:

• Install OpenHAB:

  sudo snap install openhab

---

3. Check for Existing Conflicts:

• Check for existing services using the ports you want to assign to OpenHAB:

  sudo ss -tlpn | grep -e 8080 -e 8843

If the ports 8080 or 8843 are being used by other services, change them as needed.

---

4. Setting Custom Ports for OpenHAB:

To avoid port conflicts, explicitly set different ports for OpenHAB:

• Set the HTTP port:

  sudo snap set openhab openhab.http-port.value=8082

• Set the HTTPS port:

  sudo snap set openhab openhab.https-port.value=8844

---

5. Restart OpenHAB Service:

After setting the custom ports, restart the OpenHAB service.

• Restart OpenHAB:

  sudo snap restart openhab

• Check the status:

  sudo snap logs openhab

If there are still errors related to the port configuration, proceed to the next steps.

---

6. Manually Edit Configurations (If Needed):

In some cases, Snap might not fully honor the port settings through snap set commands. You can manually edit the OpenHAB configuration files:

• Locate the OpenHAB configuration file:

  sudo nano /snap/openhab/current/conf/openhab.cfg

• Modify the relevant HTTP/HTTPS ports:

  # Change HTTP port
  http.port=8082
  
  # Change HTTPS port
  https.port=8844
  

• Save the file and exit.

---

7. Resolve the “Unexpected Operator” Error:

The error message [: {: unexpected operator indicates an issue with the shell script. This is typically caused by using a shell that doesn't support certain syntax. Snap may be using sh or dash, which causes this issue.

To resolve this, force OpenHAB to use bash instead:

• Create a symbolic link to use bash:

  sudo ln -sf /bin/bash /snap/openhab/current/runtime/bin/sh

This will ensure that OpenHAB runs scripts using bash, which should resolve the unexpected operator error.

---

8. Confirm the New Port Configuration:

Check the ports again to verify the changes were applied:

• Run:

  sudo ss -tlpn | grep -e 8082 -e 8844

If you see OpenHAB listening on the new ports, the change was successful.

---

9. Possible Additional Troubleshooting:

• Remove Docker Services: Sometimes Docker can interfere with Snap installations, as it might occupy common ports like 8080. Temporarily stop Docker if you're using it.

  sudo systemctl stop docker

• Check System Logs: If OpenHAB is still not starting, check the logs for more detailed information on any other issues:

  sudo journalctl -u snap.openhab.openhab.service

---

Summary of Steps:

1. Clear Previous Installation: sudo snap remove openhab and sudo rm -rf /snap/openhab
2. Reinstall OpenHAB: sudo snap install openhab
3. Set Custom Ports: sudo snap set openhab openhab.http-port.value=8082 and sudo snap set openhab openhab.https-port.value=8844
4. Restart OpenHAB: sudo snap restart openhab
5. Manually Edit Configurations if necessary.
6. Fix Shell Errors by setting the shell to bash: sudo ln -sf /bin/bash /snap/openhab/current/runtime/bin/sh
7. Verify Ports with sudo ss -tlpn | grep -e 8082 -e 8844.

This should resolve the issue with port conflicts and the unexpected operator error in your OpenHAB Snap installation.