106 lines
2.9 KiB
ReStructuredText
106 lines
2.9 KiB
ReStructuredText
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.. xco1564696647432
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.. _storage-configuration-create-readwriteonce-persistent-volume-claims:
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=============================================
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Create ReadWriteOnce Persistent Volume Claims
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=============================================
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Container images have an ephemeral file system by default. For data to
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survive beyond the lifetime of a container, it can read and write files to
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a persistent volume obtained with a |PVC| created to provide persistent
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storage.
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.. rubric:: |context|
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The following steps show an example of creating two 1GB |PVCs| with
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ReadWriteOnce accessMode.
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.. rubric:: |proc|
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.. _storage-configuration-create-readwriteonce-persistent-volume-claims-d891e32:
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#. Create the **rwo-test-claim1** Persistent Volume Claim.
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#. Create a yaml file defining the claim and its attributes.
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For example:
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.. code-block:: none
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~(keystone_admin)]$ cat <<EOF > rwo-claim1.yaml
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kind: PersistentVolumeClaim
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apiVersion: v1
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metadata:
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name: rwo-test-claim1
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spec:
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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: 1Gi
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storageClassName: general
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EOF
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#. Apply the settings created above.
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.. code-block:: none
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~(keystone_admin)]$ kubectl apply -f rwo-claim1.yaml
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persistentvolumeclaim/rwo-test-claim1 created
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#. Create the **rwo-test-claim2** Persistent Volume Claim.
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#. Create a yaml file defining the claim and its attributes.
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For example:
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.. code-block:: none
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~(keystone_admin)]$ cat <<EOF > rwo-claim2.yaml
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kind: PersistentVolumeClaim
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apiVersion: v1
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metadata:
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name: rwo-test-claim2
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spec:
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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: 1Gi
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storageClassName: general
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EOF
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#. Apply the settings created above.
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.. code-block:: none
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~(keystone_admin)]$ kubectl apply -f rwo-claim2.yaml
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persistentvolumeclaim/rwo-test-claim2 created
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.. rubric:: |result|
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Two 1Gb |PVCs| have been created. You can view the |PVCs| using
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the following command.
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.. code-block:: none
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~(keystone_admin)]$ kubectl get persistentvolumeclaims
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NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS
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rwo-test-claim1 Bound pvc-aaca.. 1Gi RWO general
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rwo-test-claim2 Bound pvc-e93f.. 1Gi RWO general
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.. code-block:: none
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~(keystone_admin)]$ kubectl get persistentvolume
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NAME CAPACITY ACCESS.. RECLAIM.. STATUS CLAIM STORAGECLASS
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pvc-08d8.. 1Gi RWO Delete Bound default/rwo-test-claim1 general
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pvc-af10.. 1Gi RWO Delete Bound default/rwo-test-claim2 general
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