feat: add Zabbix output plugin

Add output plugin to support sending metrics to Zabbix
(https://www.zabbix.com/).

This output plugin handle sending metrics as traps, generating LLD data
to feed discovery rules and is able to send autoregistration requests.

docs/LICENSE_OF_DEPENDENCIES.md

@@ -108,6 +108,7 @@ following works:
 - github.com/cpuguy83/dockercfg [MIT License](https://github.com/cpuguy83/dockercfg/blob/main/LICENSE)
 - github.com/cpuguy83/go-md2man [MIT License](https://github.com/cpuguy83/go-md2man/blob/master/LICENSE.md)
 - github.com/danieljoos/wincred [MIT License](https://github.com/danieljoos/wincred/blob/master/LICENSE)
+- github.com/datadope-io/go-zabbix [MIT License](https://github.com/datadope-io/go-zabbix/blob/master/LICENSE)
 - github.com/davecgh/go-spew [ISC License](https://github.com/davecgh/go-spew/blob/master/LICENSE)
 - github.com/devigned/tab [MIT License](https://github.com/devigned/tab/blob/master/LICENSE)
 - github.com/dgryski/go-rendezvous [MIT License](https://github.com/dgryski/go-rendezvous/blob/master/LICENSE)

go.mod

@@ -65,6 +65,7 @@ require (
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f
 	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/couchbase/go-couchbase v0.1.1
+	github.com/datadope-io/go-zabbix/v2 v2.0.1
 	github.com/digitalocean/go-libvirt v0.0.0-20221205150000-2939327a8519
 	github.com/dimchansky/utfbom v1.1.1
 	github.com/djherbis/times v1.6.0

go.sum

@@ -1046,6 +1046,8 @@ github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr
 github.com/cyphar/filepath-securejoin v0.2.3/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/danieljoos/wincred v1.2.0 h1:ozqKHaLK0W/ii4KVbbvluM91W2H3Sh0BncbUNPS7jLE=
 github.com/danieljoos/wincred v1.2.0/go.mod h1:FzQLLMKBFdvu+osBrnFODiv32YGwCfx0SkRa/eYHgec=
+github.com/datadope-io/go-zabbix/v2 v2.0.1 h1:kGlyzfFqbwhMph4Mo0hpYxxBHI14eHuV5TVy+7uNonE=
+github.com/datadope-io/go-zabbix/v2 v2.0.1/go.mod h1:hRbQWszykTUPoR6g5fJXfNwPFZpP3nDNSZ9HrEKuKCM=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=

plugins/outputs/all/zabbix.go

@@ -0,0 +1,5 @@
+//go:build !custom || outputs || outputs.zabbix
+
+package all
+
+import _ "github.com/influxdata/telegraf/plugins/outputs/zabbix" // register plugin