zre: ZRE protocol implementation
Peer-to-peer local area networking with reliable group messaging and automatic peer discovery. ZRE protocol implementation according to https://rfc.zeromq.org/spec:36/ZRE/
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- zre-0.1.5.1.tar.gz [browse] (Cabal source package)
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| Versions [RSS] | 0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.1.0, 0.1.2.0, 0.1.3.0, 0.1.4.0, 0.1.5.0, 0.1.5.1 |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | async, attoparsec (>=0.14 && <0.15), base (>=4 && <5), binary (>=0.8), bytestring, cereal, containers, data-default, directory, filepath, lifted-async, lifted-base, monad-control, mtl, network (>=3.1 && <3.2), network-bsd (>=2.8 && <2.9), network-info (>=0.2 && <0.3), network-multicast (>=0.3 && <0.4), optparse-applicative, process, random, repline (>=0.4 && <0.5), sockaddr, stm, text, time, transformers-base, uuid, zeromq4-haskell (>=0.8 && <0.9), zre [details] |
| License | BSD-3-Clause |
| Copyright | 2020 Richard Marko |
| Author | Richard Marko |
| Maintainer | srk@48.io |
| Category | Networking |
| Home page | https://github.com/sorki/haskell-zre/ |
| Source repo | head: git clone https://github.com/sorki/haskell-zre |
| Uploaded | by srk at 2023-11-28T05:56:55Z |
| Distributions | NixOS:0.1.5.1 |
| Executables | zrecat, zretime, zrematch, zgossip-server, zreworker, mzre, zre |
| Downloads | 2315 total (18 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2023-11-28 [all 1 reports] |
Readme for zre-0.1.5.1
[back to package description]zre
ZRE protocol implementation https://rfc.zeromq.org/spec:36/ZRE/
Peer-to-peer local area networking with reliable group messaging and automatic peer discovery.
Usage
Dependencies:
zeromq4
Clone and test
git clone https://github.com/sorki/haskell-zre/
cd haskell-zre
nix-build
./result/bin/zre
# in another terminal or networked computer
./result/bin/zre
Two zre peers should find each other and be able to send message between each other. Firewall needs to allow traffic on UDP port 5670 and TCP port range 41000-41100. Application picks random port from this range and advertises it to network.
Applications
Few applications are provided to get you started:
- zre - interact and dump events
- zrecat - cat messages for group
These can be installed locally using pkgs.haskellPackage.zre.
Try running multiple copies of zre and zrecat on
the same computer or computers on the local network
zre
# another terminal
zrecat test
# now in original terminal you can join testgroup with
> /join test
# or send messages to it
> /shout test msg
Send uptime periodically to uptime group
( while true; do uptime; sleep 1; done ) | zrecat uptime
Cat file to group
cat /etc/os-release | zrecat test
Interact manually
zre
# in zre shell following commands are supported:
> /join time
> /shout time test!
> /leave time
> /join uptime
> /whisper <uuid> message
ZGossip
Implementation of gossip protocol is included in form of key value TTL server.
This allows connecting peers from different networks (or subnets) not reachable via multicast
beacon. This service requires TCP port 31337 and can be started with zgossip-server binary.
Run server
zgossip_server
Pass gossip endpoint to apps with
zre -g <gossip_ip>:31337
Configuration
ZRE applications using runZre will automatically try to load configuration
file if ZRECFG environment variable points to it. See zre.conf for configuration
example::
ZRECFG=./zre.conf zrecat test
To be able to use one config for multiple apps and still be able to distinguish between
them you can also set ZRENAME environment variable which overrides name
from config or default config if ZRECFG is not used::
ZRENAME=zrenode1 zrecat test