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[stable/nfs-server-provisioner]: Add nfs-server-provisioner chart (#3870)
* [stable/nfs-provisioner]: Add nfs-provisioner chart Adds a new chart to deploy the kubernetes-incubator nfs-provisioner using a StatefulSet. Additionally, it requested, will define the necessary StorageClass resource needed to make use of the provisioner. * [stable/nfs-provisioner]: Update image tag to v1.0.9 * [stable/nfs-server-provisioner]: Move stable/nfs-provisioner to stable/nfs-server-provisioner * [stable/nfs-server-provisioner]: Update Chart.yaml and README.md for name change
This commit is contained in:
Kiall Mac Innes
committed by
k8s-ci-robot
k8s-ci-robot
parent
d9f690a7e9
commit
294015f83d
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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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apiVersion: v1
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appVersion: 1.0.8
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description: nfs-server-provisioner is an out-of-tree dynamic provisioner for Kubernetes. You can use it to quickly & easily deploy shared storage that works almost anywhere.
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name: nfs-server-provisioner
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version: 0.1.0
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maintainers:
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- name: kiall
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email: kiall@macinnes.ie
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sources:
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- https://github.com/kubernetes-incubator/external-storage/tree/master/nfs
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keywords:
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- nfs
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- storage
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approvers:
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- kiall
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reviewers:
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- kiall
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# NFS Server Provisioner
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[NFS Server Provisioner](https://github.com/kubernetes-incubator/external-storage/tree/master/nfs)
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is an out-of-tree dynamic provisioner for Kubernetes. You can use it to quickly
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& easily deploy shared storage that works almost anywhere.
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This chart will deploy the Kubernetes [external-storage projects](https://github.com/kubernetes-incubator/external-storage)
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`nfs` provisioner. This provisioner includes a built in NFS server, and is not intended for connecting to a pre-existing
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NFS server. If you have a pre-existing NFS Server, please consider using the [NFS Client Provisioner](https://github.com/kubernetes-incubator/external-storage/tree/master/nfs-client)
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instead.
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## TL;DR;
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```console
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$ helm install stable/nfs-server-provisioner
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```
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> **Warning**: While installing in the default configuration will work, any data stored on
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the dynamic volumes provisioned by this chart will not be persistent!
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## Introduction
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This chart bootstraps a [nfs-server-provisioner](https://github.com/kubernetes-incubator/external-storage/tree/master/nfs)
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deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh)
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package manager.
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## Installing the Chart
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To install the chart with the release name `my-release`:
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```console
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$ helm install stable/nfs-server-provisioner --name my-release
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```
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The command deploys nfs-server-provisioner on the Kubernetes cluster in the default
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configuration. The [configuration](#configuration) section lists the parameters
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that can be configured during installation.
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## Uninstalling the Chart
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To uninstall/delete the `my-release` deployment:
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```console
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$ helm delete my-release
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```
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The command removes all the Kubernetes components associated with the chart and
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deletes the release.
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## Configuration
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The following tables lists the configurable parameters of the kibana chart and
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their default values.
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| Parameter | Description | Default |
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|:-------------------------------|:----------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------|
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| `imagePullSecrets` | Specify image pull secrets | `nil` (does not add image pull secrets to deployed pods) |
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| `image.repository` | The image repository to pull from | `quay.io/kubernetes_incubator/nfs-provisioner` |
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| `image.tag` | The image tag to pull from | `v1.0.8` |
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| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
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| `service.type` | service type | `ClusterIP` |
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| `service.nfsPort` | TCP port on which the nfs-server-provisioner NFS service is exposed | `2049` |
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| `service.mountdPort` | TCP port on which the nfs-server-provisioner mountd service is exposed | `20048` |
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| `service.rpcbindPort` | TCP port on which the nfs-server-provisioner RPC service is exposed | `51413` |
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| `service.nfsNodePort` | if `service.type` is `NodePort` and this is non-empty, sets the nfs-server-provisioner node port of the NFS service | `nil` |
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| `service.mountdNodePort` | if `service.type` is `NodePort` and this is non-empty, sets the nfs-server-provisioner node port of the mountd service | `nil` |
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| `service.rpcbindNodePort` | if `service.type` is `NodePort` and this is non-empty, sets the nfs-server-provisioner node port of the RPC service | `nil` |
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| `persistence.enabled` | Enable config persistence using PVC | `false` |
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| `persistence.storageClass` | PVC Storage Class for config volume | `nil` |
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| `persistence.accessMode` | PVC Access Mode for config volume | `ReadWriteOnce` |
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| `persistence.size` | PVC Storage Request for config volume | `1Gi` |
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| `storageClass.create` | Enable creation of a StorageClass to consume this nfs-server-provisioner instance | `true` |
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| `storageClass.provisionerName` | The provisioner name for the storageclass | `cluster.local/{release-name}-{chart-name}` |
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| `storageClass.defaultClass` | Whether to set the created StorageClass as the clusters default StorageClass | `false` |
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| `storageClass.name` | The name to assign the created StorageClass | `nfs` |
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| `resources` | Resoure limits for nfs-server-provisioner pod | `{}` |
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| `nodeSelector` | Map of node labels for pod assignment | `{}` |
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| `tolerations` | List of node taints to tolerate | `[]` |
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| `affinity` | Map of node/pod affinities | `{}` |
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```console
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$ helm install stable/nfs-server-provisioner --name my-release \
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--set=image.tag=v1.0.8,resources.limits.cpu=200m
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```
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Alternatively, a YAML file that specifies the values for the above parameters
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can be provided while installing the chart. For example,
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```console
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$ helm install stable/nfs-server-provisioner --name my-release -f values.yaml
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```
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> **Tip**: You can use the default [values.yaml](values.yaml) as an example
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## Persistence
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The nfs-server-provisioner image stores it's configuration data, and importantly, **the dynamic volumes it
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manages** `/export` path of the container.
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The chart mounts a [Persistent Volume](http://kubernetes.io/docs/user-guide/persistent-volumes/)
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volume at this location. The volume can be created using dynamic volume
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provisioning. However, **it is highly recommended** to explicitly specify
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a storageclass to use rather than accept the clusters default, or pre-create
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a volume for each replica.
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If this chart is deployed with more than 1 replica, `storageClass.defaultClass=true`
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and `persistence.storageClass`, then the 2nd+ replica will end up using the 1st
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replica to provision storage - which is likely never a desired outcome.
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## Recommended Persistence Configuration Examples
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The following is a recommended configration example when another storage class
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exists to provide persistence:
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persistence:
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enabled: true
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storageClass: "standard"
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size: 200Gi
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storageClass:
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defaultClass: true
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On many clusters, the cloud provider integration will create a "standard" storage
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class which will create a volume (e.g. a Google Compute Engine Persistent Disk or
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Amazon EBS volume) to provide persistence.
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---
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The following is a recommended configration example when another storage class
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does not exist to provide persistence:
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persistence:
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enabled: true
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storageClass: "-"
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size: 200Gi
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storageClass:
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defaultClass: true
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In this configuration, a `PersistentVolume` must be created for each replica
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to use. Installing the Helm chart, and then inspecting the `PersistentVolumeClaim`'s
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created will provide the necessary names for your `PersistentVolume`'s to bind to.
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An example of the necessary `PersistentVolume`:
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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name: data-nfs-server-provisioner-0
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spec:
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capacity:
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storage: 200Gi
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accessModes:
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- ReadWriteOnce
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gcePersistentDisk:
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fsType: "ext4"
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pdName: "data-nfs-server-provisioner-0"
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claimRef:
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namespace: kube-system
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name: data-nfs-server-provisioner-0
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---
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The following is a recommended configration example for running on bare metal with a hostPath volume:
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persistence:
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enabled: true
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storageClass: "-"
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size: 200Gi
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storageClass:
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defaultClass: true
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nodeSelector:
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kubernetes.io/hostname: {node-name}
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In this configuration, a `PersistentVolume` must be created for each replica
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to use. Installing the Helm chart, and then inspecting the `PersistentVolumeClaim`'s
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created will provide the necessary names for your `PersistentVolume`'s to bind to.
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An example of the necessary `PersistentVolume`:
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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name: data-nfs-server-provisioner-0
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spec:
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capacity:
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storage: 200Gi
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accessModes:
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- ReadWriteOnce
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hostPath:
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path: /srv/volumes/data-nfs-server-provisioner-0
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claimRef:
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namespace: kube-system
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name: data-nfs-server-provisioner-0
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> **Warning**: `hostPath` volumes cannot be migrated between machines by Kubernetes, as such,
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in this example, we have restricted the `nfs-server-provisioner` pod to run on a single node. This
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is unsuitable for production deployments.
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The NFS Provisioner service has now been installed.
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{{ if .Values.storageClass.create -}}
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A storage class named '{{ .Values.storageClass.name }}' has now been created
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and is available to provision dynamic volumes.
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You can use this storageclass by creating a `PersistentVolumeClaim` with the
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correct storageClassName attribute. For example:
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---
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kind: PersistentVolumeClaim
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apiVersion: v1
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metadata:
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name: test-dynamic-volume-claim
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spec:
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storageClassName: "{{ .Values.storageClass.name }}"
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accessModes:
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- ReadWriteOnce
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resources:
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requests:
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storage: 100Mi
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{{ else -}}
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A storage class has NOT been created. You may create a custom `StorageClass`
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resource with a `provisioner` attribute of `{{ template "nfs-provisioner.provisionerName" . }}`.
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{{ end -}}
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@@ -0,0 +1,43 @@
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{{/* vim: set filetype=mustache: */}}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "nfs-provisioner.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "nfs-provisioner.fullname" -}}
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{{- if .Values.fullnameOverride -}}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- $name := default .Chart.Name .Values.nameOverride -}}
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{{- if contains $name .Release.Name -}}
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{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "nfs-provisioner.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "nfs-provisioner.provisionerName" -}}
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{{- if .Values.storageClass.provisionerName -}}
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{{- printf.Values.storageClass.provisionerName -}}
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{{- else -}}
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cluster.local/{{ template "nfs-provisioner.fullname" . -}}
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{{- end -}}
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{{- end -}}
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@@ -0,0 +1,31 @@
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{{ if .Values.rbac.create -}}
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: {{ template "nfs-provisioner.fullname" . }}
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labels:
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app: {{ template "nfs-provisioner.name" . }}
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chart: {{ template "nfs-provisioner.chart" . }}
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heritage: {{ .Release.Service }}
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release: {{ .Release.Name }}
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rules:
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- apiGroups: [""]
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resources: ["persistentvolumes"]
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verbs: ["get", "list", "watch", "create", "delete"]
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- apiGroups: [""]
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resources: ["persistentvolumeclaims"]
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verbs: ["get", "list", "watch", "update"]
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- apiGroups: ["storage.k8s.io"]
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resources: ["storageclasses"]
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verbs: ["get", "list", "watch"]
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- apiGroups: [""]
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resources: ["events"]
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verbs: ["list", "watch", "create", "update", "patch"]
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- apiGroups: [""]
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resources: ["services", "endpoints"]
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verbs: ["get"]
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- apiGroups: ["extensions"]
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resources: ["podsecuritypolicies"]
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resourceNames: ["nfs-provisioner"]
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verbs: ["use"]
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{{- end -}}
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@@ -0,0 +1,19 @@
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{{- if .Values.rbac.create }}
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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labels:
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app: {{ template "nfs-provisioner.name" . }}
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chart: {{ template "nfs-provisioner.chart" . }}
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heritage: {{ .Release.Service }}
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release: {{ .Release.Name }}
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name: {{ template "nfs-provisioner.fullname" . }}
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: {{ template "nfs-provisioner.fullname" . }}
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subjects:
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- kind: ServiceAccount
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name: {{ template "nfs-provisioner.fullname" . }}
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namespace: {{ .Release.Namespace }}
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{{- end -}}
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@@ -0,0 +1,47 @@
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apiVersion: v1
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kind: Service
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metadata:
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name: {{ template "nfs-provisioner.fullname" . }}
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labels:
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app: {{ template "nfs-provisioner.name" . }}
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chart: {{ template "nfs-provisioner.chart" . }}
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heritage: {{ .Release.Service }}
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release: {{ .Release.Name }}
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spec:
|
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type: {{ .Values.service.type }}
|
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ports:
|
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- port: {{ .Values.service.nfsPort }}
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targetPort: nfs
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protocol: TCP
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name: nfs
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{{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nfsNodePort))) }}
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nodePort: {{ .Values.service.nfsNodePort }}
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{{- end }}
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- port: {{ .Values.service.mountdPort }}
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targetPort: mountd
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protocol: TCP
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name: mountd
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{{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.mountdNodePort))) }}
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nodePort: {{ .Values.service.mountdNodePort }}
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{{- end }}
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- port: {{ .Values.service.rpcbindPort }}
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targetPort: rpcbind-tcp
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protocol: TCP
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name: rpcbind-tcp
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{{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.rpcbindNodePort))) }}
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nodePort: {{ .Values.service.rpcbindNodePort }}
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{{- end }}
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- port: {{ .Values.service.rpcbindPort }}
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targetPort: rpcbind-udp
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protocol: UDP
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name: rpcbind-udp
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{{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.rpcbindNodePort))) }}
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nodePort: {{ .Values.service.rpcbindNodePort }}
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{{- end }}
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{{- if .Values.service.externalIPs }}
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externalIPs:
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{{ toYaml .Values.service.externalIPs | indent 4 }}
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{{- end }}
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selector:
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app: {{ template "nfs-provisioner.name" . }}
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release: {{ .Release.Name }}
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@@ -0,0 +1,11 @@
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{{- if .Values.rbac.create }}
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apiVersion: v1
|
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kind: ServiceAccount
|
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metadata:
|
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labels:
|
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app: {{ template "nfs-provisioner.name" . }}
|
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chart: {{ template "nfs-provisioner.chart" . }}
|
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heritage: {{ .Release.Service }}
|
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release: {{ .Release.Name }}
|
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name: {{ template "nfs-provisioner.fullname" . }}
|
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{{- end -}}
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@@ -0,0 +1,107 @@
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apiVersion: apps/v1beta2
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kind: StatefulSet
|
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metadata:
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name: {{ template "nfs-provisioner.fullname" . }}
|
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labels:
|
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app: {{ template "nfs-provisioner.name" . }}
|
||||
chart: {{ template "nfs-provisioner.chart" . }}
|
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heritage: {{ .Release.Service }}
|
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release: {{ .Release.Name }}
|
||||
spec:
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||||
# TODO: Investigate how/if nfs-provisioner can be scaled out beyond 1 replica
|
||||
replicas: {{ .Values.replicaCount }}
|
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selector:
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||||
matchLabels:
|
||||
app: {{ template "nfs-provisioner.name" . }}
|
||||
release: {{ .Release.Name }}
|
||||
serviceName: {{ template "nfs-provisioner.fullname" . }}
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: {{ template "nfs-provisioner.name" . }}
|
||||
chart: {{ template "nfs-provisioner.chart" . }}
|
||||
heritage: {{ .Release.Service }}
|
||||
release: {{ .Release.Name }}
|
||||
spec:
|
||||
# NOTE: This is 10 seconds longer than the default nfs-provisioner --grace-period value of 90sec
|
||||
terminationGracePeriodSeconds: 100
|
||||
serviceAccountName: {{ if .Values.rbac.create }}{{ template "nfs-provisioner.fullname" . }}{{ else }}{{ .Values.rbac.serviceAccountName | quote }}{{ end }}
|
||||
containers:
|
||||
- name: {{ .Chart.Name }}
|
||||
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
|
||||
imagePullPolicy: {{ .Values.image.pullPolicy }}
|
||||
ports:
|
||||
- name: nfs
|
||||
containerPort: 2049
|
||||
protocol: TCP
|
||||
- name: mountd
|
||||
containerPort: 20048
|
||||
protocol: TCP
|
||||
- name: rpcbind-tcp
|
||||
containerPort: 111
|
||||
protocol: TCP
|
||||
- name: rpcbind-udp
|
||||
containerPort: 111
|
||||
protocol: UDP
|
||||
securityContext:
|
||||
capabilities:
|
||||
add:
|
||||
- DAC_READ_SEARCH
|
||||
- SYS_RESOURCE
|
||||
args:
|
||||
- "-provisioner={{ template "nfs-provisioner.provisionerName" . }}"
|
||||
env:
|
||||
- name: POD_IP
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: status.podIP
|
||||
- name: SERVICE_NAME
|
||||
value: {{ .Chart.Name }}
|
||||
- name: POD_NAMESPACE
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.namespace
|
||||
volumeMounts:
|
||||
- name: data
|
||||
mountPath: /export
|
||||
resources:
|
||||
{{- with .Values.resources }}
|
||||
resources:
|
||||
{{ toYaml . | indent 12 }}
|
||||
{{- end }}
|
||||
{{- with .Values.nodeSelector }}
|
||||
nodeSelector:
|
||||
{{ toYaml . | indent 8 }}
|
||||
{{- end }}
|
||||
{{- with .Values.affinity }}
|
||||
affinity:
|
||||
{{ toYaml . | indent 8 }}
|
||||
{{- end }}
|
||||
{{- with .Values.tolerations }}
|
||||
tolerations:
|
||||
{{ toYaml . | indent 8 }}
|
||||
{{- end }}
|
||||
|
||||
{{- if not .Values.persistence.enabled }}
|
||||
volumes:
|
||||
- name: data
|
||||
emptyDir: {}
|
||||
{{- end }}
|
||||
|
||||
{{- if .Values.persistence.enabled }}
|
||||
volumeClaimTemplates:
|
||||
- metadata:
|
||||
name: data
|
||||
spec:
|
||||
accessModes: [ {{ .Values.persistence.accessMode | quote }} ]
|
||||
{{- if .Values.persistence.storageClass }}
|
||||
{{- if (eq "-" .Values.persistence.storageClass) }}
|
||||
storageClassName: ""
|
||||
{{- else }}
|
||||
storageClassName: {{ .Values.persistence.storageClass | quote }}
|
||||
{{- end }}
|
||||
{{- end }}
|
||||
resources:
|
||||
requests:
|
||||
storage: {{ .Values.persistence.size | quote }}
|
||||
{{- end }}
|
||||
@@ -0,0 +1,16 @@
|
||||
{{ if .Values.storageClass.create -}}
|
||||
kind: StorageClass
|
||||
apiVersion: storage.k8s.io/v1
|
||||
metadata:
|
||||
name: {{ .Values.storageClass.name }}
|
||||
labels:
|
||||
app: {{ template "nfs-provisioner.name" . }}
|
||||
chart: {{ template "nfs-provisioner.chart" . }}
|
||||
heritage: {{ .Release.Service }}
|
||||
release: {{ .Release.Name }}
|
||||
{{- if .Values.storageClass.defaultClass }}
|
||||
annotations:
|
||||
storageclass.kubernetes.io/is-default-class: "true"
|
||||
{{- end }}
|
||||
provisioner: {{ template "nfs-provisioner.provisionerName" . }}
|
||||
{{ end -}}
|
||||
@@ -0,0 +1,76 @@
|
||||
# Default values for nfs-provisioner.
|
||||
# This is a YAML-formatted file.
|
||||
# Declare variables to be passed into your templates.
|
||||
|
||||
replicaCount: 1
|
||||
|
||||
# imagePullSecrets:
|
||||
|
||||
image:
|
||||
repository: quay.io/kubernetes_incubator/nfs-provisioner
|
||||
tag: v1.0.9
|
||||
pullPolicy: IfNotPresent
|
||||
|
||||
service:
|
||||
type: ClusterIP
|
||||
|
||||
nfsPort: 2049
|
||||
mountdPort: 20048
|
||||
rpcbindPort: 51413
|
||||
# nfsNodePort:
|
||||
# mountdNodePort:
|
||||
# rpcbindNodePort:
|
||||
|
||||
externalIPs: []
|
||||
|
||||
persistence:
|
||||
enabled: false
|
||||
|
||||
## 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
|
||||
|
||||
## For creating the StorageClass automatically:
|
||||
storageClass:
|
||||
create: true
|
||||
|
||||
## Set a provisioner name. If unset, a name will be generated.
|
||||
# provisionerName:
|
||||
|
||||
## Set StorageClass as the default StorageClass
|
||||
## Ignored if storageClass.create is false
|
||||
defaultClass: false
|
||||
|
||||
## Set a StorageClass name
|
||||
## Ignored if storageClass.create is false
|
||||
name: nfs
|
||||
|
||||
## For RBAC support:
|
||||
rbac:
|
||||
create: true
|
||||
|
||||
## Ignored if rbac.create is true
|
||||
##
|
||||
serviceAccountName: default
|
||||
|
||||
resources: {}
|
||||
# limits:
|
||||
# cpu: 100m
|
||||
# memory: 128Mi
|
||||
# requests:
|
||||
# cpu: 100m
|
||||
# memory: 128Mi
|
||||
|
||||
nodeSelector: {}
|
||||
|
||||
tolerations: []
|
||||
|
||||
affinity: {}
|
||||
Reference in New Issue
Block a user