[syslog-ng] Add syslog-ng Chart (#1567)

Co-authored-by: Devin Buhl <onedr0p@users.noreply.github.com>

charts/stable/syslog-ng/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
+# OWNERS file for Kubernetes
+OWNERS
+# helm-docs templates
+*.gotmpl

charts/stable/syslog-ng/Chart.yaml

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+---
+apiVersion: v2
+appVersion: 3.30.1
+description: syslog-ng allows you to flexibly collect, parse, classify, rewrite and correlate logs.
+name: syslog-ng
+version: 1.0.0
+kubeVersion: ">=1.16.0-0"
+keywords:
+  - syslog-ng
+home: https://github.com/k8s-at-home/charts/tree/master/charts/stable/syslog-ng
+icon: https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/syslog-ng-logo.png
+sources:
+  - https://hub.docker.com/r/linuxserver/syslog-ng
+maintainers:
+  - name: simoncaron
+    email: simon.caron@protonmail.com
+dependencies:
+  - name: common
+    repository: https://library-charts.k8s-at-home.com
+    version: 4.4.2
+annotations:
+  artifacthub.io/changes: |-
+    - kind: added
+      description: Initial version

charts/stable/syslog-ng/README.md

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+# syslog-ng
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![AppVersion: 3.30.1](https://img.shields.io/badge/AppVersion-3.30.1-informational?style=flat-square)
+
+syslog-ng allows you to flexibly collect, parse, classify, rewrite and correlate logs.
+
+**Homepage:** <https://github.com/k8s-at-home/charts/tree/master/charts/stable/syslog-ng>
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| simoncaron | simon.caron@protonmail.com |  |
+
+## Source Code
+
+* <https://hub.docker.com/r/linuxserver/syslog-ng>
+
+## Requirements
+
+Kubernetes: `>=1.16.0-0`
+
+| Repository | Name | Version |
+|------------|------|---------|
+| https://library-charts.k8s-at-home.com | common | 4.4.2 |
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| env | object | See below | environment variables. See more environment variables in the [syslog-ng documentation](https://syslog-ng.org/docs). |
+| env.PGID | string | `"1001"` | Set the container group id |
+| env.PUID | string | `"1001"` | Set the container user id |
+| env.TZ | string | `"UTC"` | Set the container timezone |
+| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
+| image.repository | string | `"linuxserver/syslog-ng"` | image repository |
+| image.tag | string | `"3.30.1"` | image tag |
+| persistence | object | See values.yaml | Configure persistence settings for the chart under this key. |
+| service | object | See values.yaml | Configures service settings for the chart. |
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v0.1.1](https://github.com/k8s-at-home/helm-docs/releases/v0.1.1)

charts/stable/syslog-ng/README_CONFIG.md.gotmpl

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+{{- define "custom.custom.configuration.header" -}}
+## Custom configuration
+{{- end -}}
+
+{{- define "custom.custom.configuration" -}}
+{{ template "custom.custom.configuration.header" . }}
+
+N/A
+{{- end -}}

charts/stable/syslog-ng/templates/NOTES.txt

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+{{- include "common.notes.defaultNotes" . -}}

charts/stable/syslog-ng/templates/common.yaml

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+{{ include "common.all" . }}

charts/stable/syslog-ng/values.yaml

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+#
+# IMPORTANT NOTE
+#
+# This chart inherits from our common library chart. You can check the default values/options here:
+# https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml
+#
+
+image:
+  # -- image repository
+  repository: ghcr.io/linuxserver/syslog-ng
+  # -- image tag
+  # @default -- chart.appVersion
+  tag:
+  # -- image pull policy
+  pullPolicy: IfNotPresent
+
+# -- environment variables. See more environment variables in the [syslog-ng documentation](https://syslog-ng.org/docs).
+# @default -- See below
+env:
+  # -- Set the container timezone
+  TZ: UTC
+  # -- Set the container user id
+  PUID: "1001"
+  # -- Set the container group id
+  PGID: "1001"
+
+# -- Configures service settings for the chart.
+# @default -- See values.yaml
+service:
+  main:
+    ports:
+      http:
+        enabled: false
+        primary: false
+      syslog-tcp:
+        primary: true
+        enabled: true
+        port: 601
+        targetPort: 6601
+      syslog-udp:
+        enabled: true
+        port: 514
+        targetPort: 5514
+        protocol: UDP
+      syslog-tls:
+        enabled: false
+        port: 6514
+
+# -- Configure persistence settings for the chart under this key.
+# @default -- See values.yaml
+persistence:
+  config:
+    enabled: true
+    mountPath: /config
+
+  logs:
+    enabled: false
+    mountPath: /var/log