Only start if needed: wsl-vpnkit status not working

[STiAT]

First of all thank you, this made it possible to reliably use WSL2 via VPN.

To the issue:
In your documentation, you say we could only start the service if required (or not already running).

wsl.exe -d wsl-vpnkit service wsl-vpnkit status >/dev/null || \
  wsl.exe -d wsl-vpnkit service wsl-vpnkit start

The issue is, that wsl-vpnkit in the 0.3.4 release seems to be missing the status option:

Therefore the command fails and it always tries to start the service anyway.

[STiAT]

Update: Seems the docs refer to a feature implemented after the release. Probably should only be there after it was released ;-).

[josesa-xx]

I've added that to the documentation after changing the init scripts (#147), however this will only become effective when there is a new release published.

Alternatively you can build it from source.

Or use the following:

  flock ~ -c '
    if [ -z "$(wsl.exe -d wsl-vpnkit --cd /app ps | grep wsl-vm)" ]; then
        wsl.exe -d wsl-vpnkit --cd /app service wsl-vpnkit start
    fi
  '

I use flock because I use windows terminal with multiple splited panes, so this prevents concurrency starting those external services

[sakai135]

@STiAT @josesa-xx thanks, v0.3.5 v0.3.6 is out as a pre-release now. I'll mark it as release after a few days of use.

[sakai135]

v0.3.8 should resolve this issue.