[signalclirestapi] Add incubator chart signal-cli-rest-api (#1449)

* [signalclirestapi] New incubator chart for signal-cli-rest-api

Signed-off-by: Tamas Varga <tamas@varga.lu>

* [signalclirestapi] Update README.md with signal-cli-rest-api specific env variable

Signed-off-by: Tamas Varga <tamas@varga.lu>

* [signalclirestapi] Fix appversion and version. Remove image.tag from values.yaml

Signed-off-by: Tamas Varga <tamas@varga.lu>

* [signalclirestapi] Add image.tag to values.yaml, but leave it empty as it will default to appVersion

Signed-off-by: Tamas Varga <tamas@varga.lu>

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

charts/incubator/signal-cli-rest-api/.helmignore

@@ -0,0 +1,26 @@
+# 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/incubator/signal-cli-rest-api/Chart.yaml

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+apiVersion: v2
+version: 1.0.0
+description: Dockerized Signal Messenger REST API
+name: signal-cli-rest-api
+appVersion: "0.57"
+kubeVersion: ">=1.16.0-0"
+keywords:
+  - signal-cli-rest-api
+  - signal-messenger
+  - signal
+home: https://github.com/k8s-at-home/charts/tree/master/charts/stable/signal-cli-rest-api
+icon: https://signal-cli-rest-api.org/icon
+sources:
+  - https://github.com/bbernhard/signal-cli-rest-api
+maintainers:
+  - name: vargat
+    url: https://github.com/tamasv
+dependencies:
+  - name: common
+    repository: https://library-charts.k8s-at-home.com
+    version: 4.3.0
+annotations:
+  artifacthub.io/changes: |
+    - kind: added
+      description: Initial version

charts/incubator/signal-cli-rest-api/README.md

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+# signal-cli-rest-api
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![AppVersion: 1.0.0](https://img.shields.io/badge/AppVersion-1.0.0-informational?style=flat-square)
+
+signal-cli-rest-api helm package
+
+**This chart is not maintained by the upstream project and any issues with the chart should be raised [here](https://github.com/k8s-at-home/charts/issues/new/choose)**
+
+## Source Code
+
+* <https://github.com/signal-cli-rest-api/signal-cli-rest-api-docker>
+
+## Requirements
+
+Kubernetes: `>=1.16.0-0`
+
+## Dependencies
+
+| Repository | Name | Version |
+|------------|------|---------|
+| https://library-charts.k8s-at-home.com | common | 4.0.0 |
+
+## TL;DR
+
+```console
+helm repo add k8s-at-home https://k8s-at-home.com/charts/
+helm repo update
+helm install signal-cli-rest-api k8s-at-home/signal-cli-rest-api
+```
+
+## Installing the Chart
+
+To install the chart with the release name `signal-cli-rest-api`
+
+```console
+helm install signal-cli-rest-api k8s-at-home/signal-cli-rest-api
+```
+
+## Uninstalling the Chart
+
+To uninstall the `signal-cli-rest-api` deployment
+
+```console
+helm uninstall signal-cli-rest-api
+```
+
+The command removes all the Kubernetes components associated with the chart **including persistent volumes** and deletes the release.
+
+## Configuration
+
+Read through the [values.yaml](./values.yaml) file. It has several commented out suggested values.
+Other values may be used from the [values.yaml](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml) from the [common library](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common).
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
+
+```console
+helm install signal-cli-rest-api \
+  --set env.TZ="America/New York" \
+    k8s-at-home/signal-cli-rest-api
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart.
+
+```console
+helm install signal-cli-rest-api k8s-at-home/signal-cli-rest-api -f values.yaml
+```
+
+## Custom configuration
+
+N/A
+
+## Values
+
+**Important**: When deploying an application Helm chart you can add more values from our common library chart [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common)
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| env | object | See below | environment variables. See more environment variables in the [signal-cli-rest-api documentation](https://signal-cli-rest-api.org/docs). |
+| env.TZ | string | `"UTC"` | Set the container timezone |
+| env.MODE | string | `"native"` | Set the Execution mode. See https://github.com/bbernhard/signal-cli-rest-api#execution-modes |
+| env.AUTO_RECEIVE_SCHEDULE | string | `"0 22 * * *"` | Set the Auto receive schedule. See https://github.com/bbernhard/signal-cli-rest-api#auto-receive-schedule |
+| env.SIGNAL_CLI_CONFIG_DIR | string | `"/home/.local/share/signal-cli"` |  Set the config directory for the application. See https://github.com/bbernhard/signal-cli-rest-api#advanced-settings |
+| env.SIGNAL_CLI_UID | string | `"1000"` | Specifies the uid of the signal-api user inside the docker container. Defaults to 1000 |
+| env.SIGNAL_CLI_GID | string | `"1000"` | Specifies the gid of the signal-api group inside the docker container. Defaults to 1000 |
+| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
+| image.repository | string | `"signal-cli-rest-api/signal-cli-rest-api"` | image repository |
+| image.tag | string | `"1.0.0"` | image tag |
+| ingress.main | object | See values.yaml | Enable and configure ingress settings for the chart under this key. |
+| 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. |
+
+## Changelog
+
+### Version 1.0.0
+
+#### Added
+
+- Initial version
+
+#### Changed
+
+N/A
+
+#### Fixed
+
+N/A
+
+## Support
+
+- See the [Docs](https://docs.k8s-at-home.com/our-helm-charts/getting-started/)
+- Open an [issue](https://github.com/k8s-at-home/charts/issues/new/choose)
+- Ask a [question](https://github.com/k8s-at-home/organization/discussions)
+- Join our [Discord](https://discord.gg/sTMX7Vh) community
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.5.0](https://github.com/norwoodj/helm-docs/releases/v1.5.0)

charts/incubator/signal-cli-rest-api/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/incubator/signal-cli-rest-api/templates/NOTES.txt

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

charts/incubator/signal-cli-rest-api/templates/common.yaml

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

charts/incubator/signal-cli-rest-api/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: bbernhard/signal-cli-rest-api
+  # -- image tag
+  tag:
+  # -- image pull policy
+  pullPolicy: IfNotPresent
+
+# -- environment variables. See more environment variables in the [signal-cli-rest-api documentation](https://github.com/bbernhard/signal-cli-rest-api).
+# @default -- See below
+env:
+  # -- Set the container timezone
+  TZ: UTC
+  # -- Set the Execution mode. See https://github.com/bbernhard/signal-cli-rest-api#execution-modes
+  MODE: native
+  # -- Set the Auto receive schedule. See https://github.com/bbernhard/signal-cli-rest-api#auto-receive-schedule
+  # AUTO_RECEIVE_SCHEDULE="0 22 * * *"
+  # -- Set the config directory for the application. See https://github.com/bbernhard/signal-cli-rest-api#advanced-settings
+  # SIGNAL_CLI_CONFIG_DIR: "/home/.local/share/signal-cli"
+  # --  Specifies the uid of the signal-api user inside the docker container. Defaults to 1000
+  # SIGNAL_CLI_UID: 1000
+  # -- Specifies the gid of the signal-api group inside the docker container. Defaults to 1000
+  # SIGNAL_CLI_GID: 1000
+# -- Configures service settings for the chart.
+# @default -- See values.yaml
+service:
+  main:
+    ports:
+      http:
+        port: 8080
+
+ingress:
+  # -- Enable and configure ingress settings for the chart under this key.
+  # @default -- See values.yaml
+  main:
+    enabled: false
+
+# -- Configure persistence settings for the chart under this key.
+# @default -- See values.yaml
+persistence:
+  config:
+    enabled: false
+    mountPath: /home/.local/share/signal-cli