`AdvertiseAddrs` has been introduced as a configuration option, which
duplicates a few other options, namely `AdvertiseAddrWan`. We need to
use this value elsewhere, so rather than doing a precedence check every
time we need to access it, rectify the value of `AdvertiseAddrWan` to
match
Consolidate code duplication and tests into a single lib package. Most of these functions were from various **/util.go functions that couldn't be imported due to cyclic imports. The consul/lib package is intended to be a terminal node in an import DAG and a place to stash various consul-only helper functions. Pulled in hashicorp/go-uuid instead of consolidating UUID access.
* A batch of updates is done all in a single transaction.
* We no longer need to get an update to kick things, there's a periodic flush.
* If incoming updates overwhelm the configured flush rate they will be dumped with an error.
Adds the ability to simply check whether a TCP socket accepts
connections to determine if it is healthy. This is a light-weight -
though less comprehensive than scripting - method of checking network
service health.
The check parameter `tcp` should be set to the `address:port`
combination for the service to be tested. Supports both IPv6 and IPv4,
in the case of a hostname that resolves to both, connections will be
attempted via both protocol versions, with the first successful
connection returning a successful check result.
Example check:
```json
{
"check": {
"id": "ssh",
"name": "SSH (TCP)",
"tcp": "example.com:22",
"interval": "10s"
}
}
```
Fixes#550.
This will make it possible to configure the advertised adresses for
SerfLan, SerfWan and RPC. It will enable multiple consul clients on a
single host which is very useful in a container environment.
This option might override advertise_addr and advertise_addr_wan
depending on the configuration.
It will be configureable with advertise_addrs. Example:
{
"advertise_addrs": {
"serf_lan": "10.0.120.91:4424",
"serf_wan": "201.20.10.61:4423",
"rpc": "10.20.10.61:4424"
}
}
Wim