[Readarr] New Readarr chart (#438)

* V1 of Readarr

* Feedback from PR

* Additional message around early-dev project

charts/readarr/.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
+# OWNERS file for Kubernetes
+OWNERS
+.vscode/

charts/readarr/Chart.yaml

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+apiVersion: v2
+appVersion: 0.1.0.351
+description: A fork of Radarr to work with Books & AudioBooks
+name: readarr
+version: 1.0.0
+keywords:
+  - readarr
+  - torrent
+  - usenet
+  - AudioBooks
+  - ebooks
+home: https://github.com/k8s-at-home/charts/tree/master/charts/readarr
+icon: https://readarr.com/img/logo.png
+sources:
+  - https://github.com/Readarr/Readarr
+  - https://readarr.com
+maintainers:
+  - name: mcmarkj
+    email: mark@markmcw.uk
+dependencies:
+  - name: common
+    repository: https://k8s-at-home.com/charts/
+    version: 2.1.1

charts/readarr/README.md

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+# Readarr
+
+This is a helm chart for [Readarr](https://github.com/Readarr/Readarr).
+
+**Readarr is still in early development, and this chart will install a nightly build of Readarr.
+[See the project readme for more information](https://github.com/Readarr/Readarr#readarr-is-in-early-stages-of-development-alphabeta-binary-builds-are-not-yet-available-use-of-any-test-builds-isnt-recommend-and-may-have-detrimental-effects-on-your-library). Take back-up's if you decide to use this on an existing library as the project is considered unstable**
+
+**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)**
+
+## TL;DR;
+
+```shell
+$ helm repo add k8s-at-home https://k8s-at-home.com/charts/
+$ helm install k8s-at-home/readarr
+```
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```console
+helm install --name my-release k8s-at-home/readarr
+```
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```console
+helm delete my-release --purge
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+Read through the charts [values.yaml](https://github.com/k8s-at-home/charts/blob/master/charts/readarr/values.yaml)
+file. It has several commented out suggested values.
+Additionally you can take a look at the common library [values.yaml](https://github.com/k8s-at-home/charts/blob/master/charts/common/values.yaml) for more (advanced) configuration options.
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+```console
+helm install readarr \
+  --set env.TZ="America/New_York" \
+    k8s-at-home/readarr
+```
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the
+chart. For example,
+```console
+helm install readarr k8s-at-home/readarr --values values.yaml
+```
+
+```yaml
+image:
+  tag: ...
+```

charts/readarr/templates/NOTES.txt

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

charts/readarr/templates/common.yaml

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

charts/readarr/values.yaml

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+# Default values for Radarr.
+
+image:
+  repository: hotio/readarr
+  pullPolicy: IfNotPresent
+  tag: nightly
+
+strategy:
+  type: Recreate
+
+service:
+  port:
+    port: 8787
+
+env: {}
+  # TZ: UTC
+  # PUID: 1001
+  # PGID: 1001
+
+persistence:
+  config:
+    enabled: false
+    emptyDir: false
+
+  media:
+    enabled: false
+    emptyDir: false
+    mountPath: /media
+    ## Persistent Volume Storage Class
+    ## If defined, storageClassName: <storageClass>
+    ## If set to "-", storageClassName: "", which disables dynamic provisioning
+    ## If undefined (the default) or set to null, no storageClassName spec is
+    ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
+    ##   GKE, AWS & OpenStack)
+    # storageClass: "-"
+    # accessMode: ReadWriteOnce
+    # size: 1Gi
+    ## Do not delete the pvc upon helm uninstall
+    # skipuninstall: false
+    # existingClaim: ""