Andrey Smirnov aa14993539
feat: introduce network probes
Network probes are configured with the specs, and provide their output
as a status.

At the moment only platform code can configure network probes.

If any network probes are configured, they affect network.Status
'Connectivity' flag.

Example, create the probe:

```
talosctl -n 172.20.0.3 meta write 0xa '{"probes": [{"interval": "1s", "tcp": {"endpoint": "google.com:80", "timeout": "10s"}}]}'
```

Watch probe status:

```
$ talosctl -n 172.20.0.3 get probe
NODE         NAMESPACE   TYPE          ID                  VERSION   SUCCESS
172.20.0.3   network     ProbeStatus   tcp:google.com:80   5         true
```

With failing probes:

```
$ talosctl -n 172.20.0.3 get probe
NODE         NAMESPACE   TYPE          ID                  VERSION   SUCCESS
172.20.0.3   network     ProbeStatus   tcp:google.com:80   4         true
172.20.0.3   network     ProbeStatus   tcp:google.com:81   1         false
$ talosctl -n 172.20.0.3 get networkstatus
NODE         NAMESPACE   TYPE            ID       VERSION   ADDRESS   CONNECTIVITY   HOSTNAME   ETC
172.20.0.3   network     NetworkStatus   status   5         true      true           true       true

```

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
2023-03-31 15:20:21 +04:00
..
2023-03-30 23:39:38 +04:00
2023-03-31 15:20:21 +04:00