Keep fabio registered in consul

[robholland]

If consul goes away and comes back while fabio is running then fabio's service registration can be lost. If the connection to consul is lost, I think fabio should check if it needs to re-register when re-connected to consul.

[magiconair]

yep, it should :)

[robholland]

We got bitten by this again today. We use a wildcard DNS entry to point at fabio.service.consul and if consul goes down and comes back, that service entry will stop working even though consul and fabio are both up. I'll see if I can create a PR.

[robholland]

Actually we can use the patch in #99 as registrator will automatically maintain a fabio service for us.

[magiconair]

I'll have a look later today whether I can fix this properly.

[magiconair]

Any idea why your consul servers are going down? We don't really have that issue.

[magiconair]

That should fix it.

[robholland]

It's because we restart it sometimes to adjust configuration.

[magiconair]

Merged it to master. Pls reopen if it causes issues.