ben/gocast
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(gocast_nat): Add listen port option

Browse Source
This commit is contained in:
Daniel Santos
2022-03-16 13:23:35 -06:00
parent f883e4d4b3
commit f1542981d6
3 changed files with 10 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
README.md
View File

@@ -50,6 +50,10 @@ GoCast supports consul for automatic service discovery and healthchecking. For t
If `gocast_monitor=consul` is specified, then GoCast uses the defined healthchecks in consul as the health monitors for the service.
If `gocast_nat=protocol:listenPort:destinationPort` is specified, then GoCast will create NAT rules, via iptables, and map traffic destined to the assigned VIP and the specified `listenport` to the physical IP and `destinationport`.
Example: `gocast_nat=tcp:53:8053` and `gocast_nat=udp:53:8053`
## Docker support
The docker image at mayuresh82/gocast can be used to run GoCast inside a container. In order for GoCast to manipulate the host network stack correctly, the container needs to run with NET_ADMIN capablity and host mode networking. For example:
```
@@ -63,7 +67,7 @@ Certain orchestration solutions such as Nomad run the docker containers with pub
- Start the service container in host networking mode OR
- Register NAT rules for your service with GoCast for the required protocol/port(s). GoCast will then create iptables NAT rules that map traffic destined to the assigned VIP to the physical IP address. This is achieved by adding the `nat=protocol:port` tag(s) in consul or the http query.
- Register NAT rules for your service with GoCast for the required protocol/port(s). GoCast will then create iptables NAT rules that map traffic destined to the assigned VIP to the physical IP address. This is achieved by adding the `nat=protocol:listenPort:destinationPort` in the http query or `gocast_nat=protocol:listenPort:destinationPort` tag(s) in consul, as shown in the Consul integration section above.
**Why not just use ExaBGP or something similar ?**