Alpine: test fails "Call to flock failed"

[mudler]

C3OS version:
Current master, not released

CPU architecture, OS, and Version:

Describe the bug
Test failure: https://github.com/c3os-io/c3os/runs/7554332112?check_suite_focus=true

To Reproduce
N/A

Expected behavior

Logs

      <string>: {"level":"info","ts":1658989504.254293,"caller":"provider/bootstrap.go:96","msg":"Configuring VPN"}
      {"level":"info","ts":1658989504.3057752,"caller":"provider/bootstrap.go:96","msg":"Configuring VPN"}
      Provider c3os at /usr/bin/agent-provider-c3os had an error: Failed setup VPN: could not start svc: failed starting service: edgevpn.  * Call to flock failed: Resource temporarily unavailable
       * WARNING: edgevpn is already starting
       (exit status 1)

Additional context
Maybe a /run / /var/run issue?