Bindings for libsystemd-daemon #

Dependencies ##

* build-essential
* pkg-config
* libsystemd-dev or libsystemd-daemon-dev

Install ##

``bash
npm install sd-daemon
`

$3

`bash
sudo apt-get install devscripts
sudo mk-build-deps -ir
debuild
sudo dpkg -i ../node-sd-daemon_*.deb
`

$3

`bash
sudo yum install systemd-devel
`

Test ##

$3

test.service:
`ini
...
[Service]
WatchdogSec=10s
`

test.js:
`javascript
...
sd.startWatchdogPing();
`

`bash
systemctl --user link "$PWD/test/test.service"
systemctl --user start test.service

curl localhost:8089
systemctl --user status test.service
curl localhost:8089/block

...
systemctl --user status test.service

systemctl --user stop test.service
systemctl --user disable test.service
`

$3

test-socket.socket:
`ini
...
[Socket]
ListenStream=8088
`

test-socket.service:
`ini
...
[Service]
ExecStart=/usr/bin/nodejs test-socket.js
NonBlocking=yes
`

test-socket.js:
`javascript
var listeners = sd.listeners();
if (listeners.length) {
server.listen(listeners[0]);
}
`

`bash
systemctl --user link "$PWD/test/test-socket.socket" "$PWD/test/test-socket.service"
systemctl --user start test-socket.socket

curl localhost:8088
systemctl --user status test-socket.service
...

systemctl --user stop test-socket.socket test-socket.service
systemctl --user disable test-socket.socket
`

$3

test-s3@.service
`ini
[Service]
ExecStart=/usr/bin/nodejs test-s3.js %i
NonBlocking=yes
Sockets=test-s3.socket
`

test-s3.socket:
`ini
[Socket]
ListenStream=8087
Service=test-s3@1.service
Service=test-s3@2.service
`

`bash
$ systemctl --user link "$PWD/test/test-s3@.service" "$PWD/test/test-s3.socket"
$ systemctl --user start test-s3@1.service test-s3@2.service

$ systemctl --user list-units --all test-s3*
UNIT LOAD ACTIVE SUB DESCRIPTION
test-s3@1.service loaded active running Test-S3 Service
test-s3@2.service loaded active running Test-S3 Service
test-s3.socket loaded active running Test S3 Socket

$ systemctl --user list-sockets test-s3*
LISTEN UNIT ACTIVATES
[::]:8087 test-s3.socket test-s3@2.service, test-s3@1.service

$ ss -tlp
LISTEN 0 128 :::8087 :::* users:(("nodejs",pid=...,fd=3),("nodejs",pid=...,fd=3),("systemd",pid=...,fd=...))

$ curl localhost:8087
Hello 2

$ curl localhost:8087
Hello 1

$ curl localhost:8087
Hello 1

$ curl localhost:8087
Hello 2

$ systemctl --user stop test-s3@1.service test-s3@2.service test-s3.socket
$ systemctl --user disable test-s3@.service test-s3.socket
``