f125a8b892
This change addresses a long-standing issue in rST documentation imported from XML.
That import process added backslash escapes in front of various characters. The three
most common being '(', ')', and '_'.
These instances are removed.
Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Id43a9337ffcd505ccbdf072d7b29afdb5d2c997e
103 lines
3.1 KiB
ReStructuredText
103 lines
3.1 KiB
ReStructuredText
|
|
.. rqy1582055871598
|
|
.. _kubernetes-user-tutorials-create-readwriteonce-persistent-volume-claims:
|
|
|
|
=============================================
|
|
Create ReadWriteOnce Persistent Volume Claims
|
|
=============================================
|
|
|
|
Container images have an ephemeral file system by default. For data to survive
|
|
beyond the lifetime of a container, it can read and write files to a persistent
|
|
volume obtained with a Persistent Volume Claim (PVC) created to provide
|
|
persistent storage.
|
|
|
|
.. rubric:: |context|
|
|
|
|
For the use case of a single container mounting a specific |PVC|, create a PVC
|
|
with accessMode of ReadWriteOnce (RWO).
|
|
|
|
The following steps show an example of creating two 1GB |PVCs| with
|
|
ReadWriteOnce accessMode.
|
|
|
|
.. rubric:: |proc|
|
|
|
|
.. _kubernetes-user-tutorials-creating-persistent-volume-claims-d380e32:
|
|
|
|
#. Create the **rwo-test-claim1** Persistent Volume Claim.
|
|
|
|
#. Create a yaml file defining the claim and its attributes.
|
|
|
|
For example:
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$
|
|
cat <<EOF > rwo-claim1.yaml
|
|
kind: PersistentVolumeClaim
|
|
apiVersion: v1
|
|
metadata:
|
|
name: rwo-test-claim1
|
|
spec:
|
|
accessModes:
|
|
- ReadWriteOnce
|
|
resources:
|
|
requests:
|
|
storage: 1Gi
|
|
storageClassName: general
|
|
EOF
|
|
|
|
#. Apply the settings created above.
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$ kubectl apply -f rwo-claim1.yaml
|
|
persistentvolumeclaim/rwo-test-claim1 created
|
|
|
|
#. Create the **rwo-test-claim2** Persistent Volume Claim.
|
|
|
|
#. Create a yaml file defining the claim and its attributes.
|
|
|
|
For example:
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$ cat <<EOF > rwo-claim2.yaml
|
|
kind: PersistentVolumeClaim
|
|
apiVersion: v1
|
|
metadata:
|
|
name: rwo-test-claim2
|
|
spec:
|
|
accessModes:
|
|
- ReadWriteOnce
|
|
resources:
|
|
requests:
|
|
storage: 1Gi
|
|
storageClassName: general
|
|
EOF
|
|
|
|
#. Apply the settings created above.
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$ kubectl apply -f rwo-claim2.yaml
|
|
persistentvolumeclaim/rwo-test-claim2 created
|
|
|
|
Result: Two 1GB Persistent Volume Claims have been created. You can view the PVCs using
|
|
the following command.
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$ kubectl get persistentvolumeclaims
|
|
|
|
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS
|
|
rwo-test-claim1 Bound pvc-08d8.. 1Gi RWO general
|
|
rwo-test-claim2 Bound pvc-af10.. 1Gi RWO general
|
|
|
|
.. code-block:: none
|
|
|
|
~(keystone_admin)]$ kubectl get persistentvolume
|
|
|
|
NAME CAPACITY ACCESS.. RECLAIM.. STATUS CLAIM STORAGECLASS
|
|
pvc-08d8.. 1Gi RWO Delete Bound default/rwo-test-claim1 general
|
|
pvc-af10.. 1Gi RWO Delete Bound default/rwo-test-claim2 general
|