Add telegraf-ds (imported and updated from old tick-stack charts)

charts/telegraf-ds/.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

charts/telegraf-ds/Chart.yaml

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+apiVersion: v1
+name: telegraf-ds
+version: 1.0.0
+appVersion: 1.13
+deprecated: false
+description: Telegraf is an agent written in Go for collecting, processing, aggregating, and writing metrics.
+keywords:
+- telegraf
+- collector
+- timeseries
+- influxdata
+home: https://www.influxdata.com/time-series-platform/telegraf/
+maintainers:
+- name: rawkode
+  email: [email protected]
+- name: gitirabassi
+  email: [email protected]
+- name: naseemkullah
+  email: [email protected]
+- name: nsteinmetz
+  email: [email protected]
+engine: gotpl

charts/telegraf-ds/OWNER

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+approvers:
+- rawkode
+- gitirabassi
+- naseemkullah
+reviewers:
+- rawkode
+- gitirabassi
+- naseemkullah

charts/telegraf-ds/README.md

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+# Telegraf-DS (DaemonSet)
+
+[Telegraf](https://github.com/influxdata/telegraf) is a plugin-driven server agent written by the folks over at [InfluxData](https://influxdata.com) for collecting & reporting metrics. This chart runs a DaemonSet of Telegraf instances to collect host level metrics for your cluster. If you need to poll individual instances of infrastructure or APIs there is a `telegraf` chart that is more suited to that usecase.
+
+Telegraf input cannot be customised as it aims to provide an opinionated configuration to monitor kubernetes nodes and global kubernetes monitoring.
+
+## TL;DR
+
+```console
+helm repo add influxdata https://helm.influxdata.com/
+helm install influxdata/telegraf-ds
+```
+
+## Introduction
+
+This chart bootstraps a `telegraf-ds` daemonset on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.11+ with Beta APIs enabled
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```console
+helm install --name my-release influxdata/telegraf-ds
+```
+
+The command deploys a Telegraf daemonset on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section as well as the [values.yaml](/values.yaml) file lists the parameters that can be configured during installation.
+
+> **Tip**: List all releases using `helm list`
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```console
+helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The default configuration parameters are listed in `values.yaml`. To change the defaults, specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```console
+helm install --name my-release \
+  --set config.outputs.influxdb.url=http://foo.bar:8086 \
+    influxdata/telegraf-ds
+```
+
+The above command allows the chart to deploy by setting the InfluxDB URL for telegraf to write to.
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
+
+```console
+helm install --name my-release -f values.yaml influxdata/telegraf-ds
+```
+
+## Telegraf Configuration
+
+This chart deploys the following by default:
+
+- `telegraf` (`telegraf-ds`) running in a daemonset with the following plugins enabled
+  * [`cpu`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/cpu)
+  * [`disk`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/disk)
+  * [`diskio`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/diskio)
+  * [`docker`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/docker)
+  * [`kernel`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/kernel)
+  * [`kubernetes`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/kubernetes)
+  * [`mem`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mem)
+  * [`processes`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/processes)
+  * [`swap`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/swap)
+  * [`system`](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/system)

charts/telegraf-ds/templates/NOTES.txt

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+To open a shell session in the container running Telegraf run the following:
+
+- kubectl exec -i -t --namespace {{ .Release.Namespace }} $(kubectl get pods --namespace {{ .Release.Namespace }} -l app.kubernetes.io/name={{ include "telegraf.name" . }} -o jsonpath='{.items[0].metadata.name}') /bin/sh
+
+To tail the logs for a Telegraf pod in the Daemonset run the following:
+
+- kubectl logs -f --namespace {{ .Release.Namespace }} $(kubectl get pods --namespace {{ .Release.Namespace }} -l app.kubernetes.io/name={{ include "telegraf.name" . }} -o jsonpath='{ .items[0].metadata.name }')
+
+To list the running Telegraf instances run the following:
+
+- kubectl get pods --namespace {{ .Release.Namespace }} -l app.kubernetes.io/name={{ include "telegraf.name" . }} -w