/fty-mdns-sd

fty-mdns-sd manages network announcement(mDNS) and discovery (DNS-SD)

Primary LanguageC++OtherNOASSERTION

fty-mdns-sd

Manages network announcement(mDNS) and discovery (DNS-SD) by collecting information from fty-info agent, then publishing it through avahi-deamon

limitation: discovery is not yet managed

How to build

To build, run:

mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=usr -DBUILD_TESTING=On ..
make
sudo make install

How to run

To run fty-mdns-sd project:

  • from within the source tree, run:
./build/agent/fty-mdns-sd

For the other options available, refer to the manual page of fty-mdns-sd

  • from an installed base, using systemd, run:
systemctl start fty-info
systemctl start avahi-daemon
systemctl start fty-mdns-sd

Configuration file

The default configuration values are in fty-mdns-sd.cfg file.

  • section server:

    • verbose - sets verbosity of the agent

  • section fty-info

    • name - sets name of fty-info agent
    • command - sets command sent to fty-info agent

  • section malamute: standard directives

Architecture

Overview

fty-mdns-sd has 1 actor:

  • fty-mdns-sd-server: main actor

Protocols

Published metrics

Agent doesn't publish any metrics.

Published alerts

Agent doesn't publish any alerts.

Mailbox requests

Agent doesn't accept any mailbox requests.

Stream subscriptions

On startup, agent send INFO request to fty-info agent, and sets default service definition and TXT properties via avahi.

In addition to that, agent is subscribed to ANNOUNCE stream (special stream where up-to-date INFO messages are periodically published).

On each INFO message, agent updates service definition and TXT properties, and publishes them to mDNS-SD via avahi.