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Merge pull request #43 from leakingtapan/sts
Add example stateful sets
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## Use in Stateful Set | ||
This example shows how to consume EFS filesystem from StatefulSets using the driver. Before the example, refer to [StatefulSets](https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/) for what it is. | ||
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## Deploy the example | ||
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```sh | ||
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-efs-csi-driver/master/examples/kubernetes/statefulset/specs/example.yaml | ||
``` | ||
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## Check the StatefulSets Application | ||
Check StatefulSets is deployed successfully: | ||
```sh | ||
$ kubectl get sts | ||
NAME READY AGE | ||
efs-app-sts 3/3 70m | ||
``` | ||
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Check the pods are running: | ||
```sh | ||
$ kubectl get po | ||
NAME READY STATUS RESTARTS AGE | ||
efs-app-sts-0 1/1 Running 0 71m | ||
efs-app-sts-1 1/1 Running 0 71m | ||
efs-app-sts-2 1/1 Running 0 71m | ||
``` | ||
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Check data are written onto EFS filesystem: | ||
```sh | ||
$ kubectl exec -ti efs-app-sts-0 -- tail -f /efs-data/out.txt | ||
Mon May 6 00:50:15 UTC 2019 | ||
Mon May 6 00:50:18 UTC 2019 | ||
Mon May 6 00:50:19 UTC 2019 | ||
Mon May 6 00:50:20 UTC 2019 | ||
Mon May 6 00:50:23 UTC 2019 | ||
Mon May 6 00:50:24 UTC 2019 | ||
Mon May 6 00:50:25 UTC 2019 | ||
Mon May 6 00:50:28 UTC 2019 | ||
Mon May 6 00:50:29 UTC 2019 | ||
Mon May 6 00:50:30 UTC 2019 | ||
``` | ||
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apiVersion: v1 | ||
kind: PersistentVolume | ||
metadata: | ||
name: efs-pv | ||
spec: | ||
capacity: | ||
storage: 5Gi | ||
volumeMode: Filesystem | ||
accessModes: | ||
- ReadWriteMany | ||
persistentVolumeReclaimPolicy: Retain | ||
storageClassName: efs-sc | ||
csi: | ||
driver: efs.csi.aws.com | ||
volumeHandle: fs-4af69aab | ||
--- | ||
apiVersion: v1 | ||
kind: PersistentVolumeClaim | ||
metadata: | ||
name: efs-claim | ||
spec: | ||
accessModes: | ||
- ReadWriteMany | ||
storageClassName: efs-sc | ||
resources: | ||
requests: | ||
storage: 5Gi | ||
--- | ||
apiVersion: apps/v1 | ||
kind: StatefulSet | ||
metadata: | ||
name: efs-app-sts | ||
spec: | ||
selector: | ||
matchLabels: | ||
app: test-efs | ||
serviceName: efs-app | ||
replicas: 3 | ||
template: | ||
metadata: | ||
labels: | ||
app: test-efs | ||
spec: | ||
terminationGracePeriodSeconds: 10 | ||
containers: | ||
- name: linux | ||
image: amazonlinux:2 | ||
command: ["/bin/sh"] | ||
args: ["-c", "while true; do echo $(date -u) >> /efs-data/out.txt; sleep 5; done"] | ||
volumeMounts: | ||
- name: efs-storage | ||
mountPath: /efs-data | ||
volumes: | ||
- name: efs-storage | ||
persistentVolumeClaim: | ||
claimName: efs-claim |