Purestorage Instructions

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purestorage-instructions.md

3/7/2019

DockerEE Pure Storage Install
Notes:
The Kubernetes plugin depends on the purestorage/docker-plugin this is installed automatically
but reuires it's own dependencies.
Latest linux multipath software package for your operating system (Required)
Latest iSCSI initiator software for your operating system (Optional, required for iSCSI connectivity)
Latest NFS software package for your operating system (Optional, required for NFS connectivity)
Latest FC initiator software for your operating system (Optional, requied for FC connectivity)
Latest Filesystem utilities/drivers (XFS by default, Required)
References:
https://blog.2vcps.io/2018/03/08/kubernetes-and-the-pure-storage-flexvolume-plugin/
https://github.com/purestorage/helm-charts/tree/master/pure-k8s-plugin
https://support.purestorage.com/Solutions/Kubernetes/Kubernetes%2C_Persistent_Volumes%2C_and
_Pure_Storage
https://hub.docker.com/r/purestorage/docker-plugin

Step 0:
Ensure any machine that mounts a Pure volume has the reuired drivers mentioned in the above notes.
Ensure you have the correct context for your cluster kubectl get nodes

Step 1: Install Helm
1. Download binary release
2. chmod +x $file && mv $file /usr/bin/helm
3. helm init (this will install tiller on the Kubernetes cluster)

Step 2: Add Pure Storage helm repo (cloning to your own repository and
adding is also an option)
helm repo add pure https://purestorage.github.io/helm-charts
helm repo update
helm search pure-k8s-plugin

Step 3: Configure Service Accounts
1. kubectl create clusterrolebinding add-on-cluster-admin -clusterrole=cluster-admin --serviceaccount=${TILLER_NAMESPACE}:default
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Step 4: Confiigure the Helm configuration.
1. Copy the values.yml from https://github.com/purestorage/helm-charts/blob/master/pure-k8splugin/values.yaml into a local dir`
2. Modify the values.yml these are the configurable values in the chart that will template the
deployment. Below are some snippets of imprtant configuration vaules that may reuire additinal support
from Pure or the storage team. They are included in this document for discussion purposes. See
https://github.com/purestorage/helm-charts/tree/master/pure-k8s-plugin#configuration for detailed info
about these config values.

arrays:
#FlashArrays:
# - MgmtEndPoint: "1.2.3.4"
#
APIToken: "a526a4c6-18b0-a8c9-1afa-3499293574bb"
# #Labels can be used to schedule pods on certain nodes.
help keep workloads near the storage
#
Labels:
#
rack: "22"
#
env: "prod"
# - MgmtEndPoint: "1.2.3.5"
#
APIToken: "b526a4c6-18b0-a8c9-1afa-3499293574bb"
#FlashBlades:
# - MgmtEndPoint: "1.2.3.6"
#
APIToken: "T-c4925090-c9bf-4033-8537-d24ee5669135"
#
NfsEndPoint: "1.2.3.7"
#
Labels:
#
rack: "7b"
#
env: "dev"
# - MgmtEndPoint: "1.2.3.8"
#
APIToken: "T-d4925090-c9bf-4033-8537-d24ee5669135"
#
NfsEndPoint: "1.2.3.9"
#
Labels:
#
rack: "6a"

This can

# support ISCSI or FC, not case sensitive
flasharray:
sanType: ISCSI
defaultMountOpt: ""
preemptAttachments: "true"

Step 5: Install the plugin
1. Do a dry run
helm install --name pure-storage-driver pure/pure-k8s-plugin --namespace pure -f
/yourvalues.yaml --dry-run --debug

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2. Install the plugin
helm install --name pure-storage-driver pure/pure-k8s-plugin --namespace pure -f
/yourvalues.yaml

Step 6: Test
Enter the following, you should get the output shown

kubectl get sc

NAME TYPE
pure pure-provisioner
pure-block pure-provisioner
pure-file pure-provisioner

Create the following objects with kubectl create -f

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
name: pure-block
labels:
kubernetes.io/cluster-service: “true”
provisioner: pure-provisioner
parameters:
backend: block

kind: PersistentVolume
apiVersion: v1
metadata:
name: pure-pv-volume
spec:
storageClassName: pure-block
capacity:
storage: 10Gi
accessModes:
- ReadWriteOnce
hostPath:
path: “/tmp/data”

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pure-volume
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spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
storageClassName: pure-block

Now ensure that the Claim is bound kubectl get pvc
At this point you a are able to provision storage for workloads using the pure storage k8s plugin.

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