Awesome
<!-- This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <!-- Copyright 2019 Joyent, Inc. -->Binder
This repository is part of the Joyent Triton and Manta projects. For contribution guidelines, issues, and general documentation, visit the main Triton and Manta project pages.
This repo contains Binder, which is a DNS server implemented on top of ZooKeeper. Hosts use Registrar to register themselves into DNS. Binder's behavior, use in service discovery, and the ZooKeeper record format are described in the Registrar documentation.
Active Branches
There are currently two active branches of this repository, for the two active major versions of Manta. See the mantav2 overview document for details on major Manta versions.
master- For development of mantav2, the latest version of Manta. This is the version used by Triton.mantav1- For development of mantav1, the long term support maintenance version of Manta.
Configuration
As binder is expected to run on the same host as a ZooKeeper server, it is
hard-coded to talk to ::1 to find ZK. You can override this by setting the
environment variable ZK_HOST to some other IP address. This is really only
for testing. Also, it has a fixed in-memory cache of 1000 elements and 60s
expiration time over ZK. These can be overriden with the command line flags of
-s and -a, respectively. Although, again, it's defaulted, and hard-coded
in SMF that way. There is no config file for binder.
Troubleshooting
You can hack the SMF manifest in /opt/smartdc/binder/smf/manifests/binder.xml
and add -d 2 to spew all nature of logs via SMF.
Development
To run the binder server:
git clone git@github.com:joyent/binder.git
cd binder
git submodule update --init
make all
. ./env.sh
ZK_HOST=<ZK IP address> node main.js 2>&1 | bunyan
Testing
ZK_HOST=<ZK IP address> make test