Daemond

overview

Daemond is an infrastructure for managing daemons, services, and systems. It can be utilized for overseeing development environments, servers, cloud services, IoT devices, container orchestration, and more.

Daemond operates using the concept of units, representing any daemon, service, or system that it can control and manage, similar to systemctl units.

Supporting modern C++ for specifying units, Daemond offers greater flexibility and convenience compared to other popular daemon managers that rely on their own text file syntax.

architecture

Daemond is composed out of two components:

• the main daemond program, which internally manages units
• daemond_ctl, a companion program providing easy access and querying of the main daemond program. this combination is similar to the way systemd and systemctl interact.

in order to use Daemond:

1. run the main daemond program on the machine (in the background or separate process etc...)
2. specify various units in any file you want
3. run the daemond_ctl program which will interact with the daemond program (via various communication channels like).

usage

Daemond supports the following operations on units:

• load a unit (preparing it)
• start a loaded unit
• stop a loaded unit
• query the status of a unit
• unload a unit

all of these operations can be done using the daemond_ctl program.

unit specification

look at the struct under src/abstract/unit/data/unit_data.h. to specify a unit that can be manged by daemond, write any valid C++ source file that contain a unit_data struct named unit, with your own values in it.

you can look at sample units under samples.

build

to build the daemond program, execute ./build.sh daemond. the daemond program will be found under build directory.

to build the daemond_ctl side program, execute ./build.sh daemond_ctl. the daemond_ctl program will be found under build directory.

to clean all builds, execute ./build.sh clean.

samples

the project contains sample units found under samples.

to start one of these units:

1. build daemond and daemond_ctl
2. execute daemond in the background
3. to load the unit, execute daemond_ctl -c load -p samples/unit_name
4. to start the unit, execute daemond_ctl -c start -p samples/unit_name

dependencies

Daemond uses the libboost library for serialization of data and for command line parsing. make sure you have libboost when compiling the project.

future TODOs

• add support for unit dependencies
• add netlink IPC channel to integrate with kernel level code
• add external network IPC channel to integrate with remote systems
• add support for Windows