[octoprint] New chart (#282)

charts/octoprint/Chart.yaml

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+apiVersion: v2
+appVersion: 1.4.2
+description: OctoPrint is the snappy web interface for your 3D printer
+name: octoprint
+version: 1.0.0
+keywords:
+  - octoprint
+  - 3d
+  - printer
+home: https://github.com/k8s-at-home/charts/tree/master/charts/octoprint
+icon: https://avatars3.githubusercontent.com/u/5982294?s=400&v=4
+sources:
+  - https://github.com/OctoPrint/OctoPrint
+  - https://hub.docker.com/r/octoprint/octoprint
+maintainers:
+  - name: billimek
+    email: jeff@billimek.com
+dependencies:
+  - name: common
+    repository: https://k8s-at-home.com/charts/
+    version: 1.7.0

charts/octoprint/OWNERS

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+approvers:
+- billimek
+- onedr0p
+- bjw-s
+reviewers:
+- billimek
+- onedr0p
+- bjw-s

charts/octoprint/README.md

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+# Octoprint
+
+This is a helm chart for [Octoprint](https://github.com/OctoPrint/OctoPrint).
+
+**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/octoprint
+```
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```console
+helm install --name my-release k8s-at-home/octoprint
+```
+
+## 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/octoprint/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 octoprint \
+  --set env.TZ="America/New_York" \
+    k8s-at-home/octoprint
+```
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the
+chart. For example,
+```console
+helm install octoprint k8s-at-home/octoprint --values values.yaml 
+```
+
+```yaml
+image:
+  tag: ...
+```
+
+---
+**NOTE**
+
+If you get
+```console
+Error: rendered manifests contain a resource that already exists. Unable to continue with install: existing resource conflict: ...`
+```
+it may be because you uninstalled the chart with `skipuninstall` enabled, you need to manually delete the pvc or use `existingClaim`.
+
+---

charts/octoprint/ci/ct-values.yaml

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+ingress:
+  enabled: true

charts/octoprint/templates/NOTES.txt

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

charts/octoprint/templates/common.yaml

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

charts/octoprint/values.yaml

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+# Default values for Octoprint.
+
+image:
+  repository: octoprint/octoprint
+  pullPolicy: IfNotPresent
+  tag: 1.4.2
+
+strategy:
+  type: Recreate
+
+securityContext:
+  privileged: true
+
+service:
+  port:
+    port: 5000
+
+env:
+  OCTOPRINT_PORT: "5000"
+  # TZ: UTC
+  # CAMERA_DEV: /dev/video0
+
+persistence:
+  data:
+    enabled: false
+    emptyDir: false
+    mountPath: /home/octoprint/.octoprint
+
+# Paths to your 3D printer and/or camera in the container
+additionalVolumeMounts:
+  - name: printer
+    mountPath: /dev/ttyACM0
+
+# Paths to your 3D printer and/or camera on the host
+additionalVolumes:
+  - name: printer
+    hostPath:
+      path: /dev/ttyACM0