mirror of
https://github.com/openshift/openshift-docs.git
synced 2026-02-05 12:46:18 +01:00
76 lines
1.7 KiB
Plaintext
76 lines
1.7 KiB
Plaintext
// Module included in the following assemblies:
|
|
//
|
|
// * nodes/nodes-containers-volumes.adoc
|
|
|
|
:_mod-docs-content-type: PROCEDURE
|
|
[id="nodes-containers-volumes-subpath_{context}"]
|
|
= Configuring volumes for multiple uses in a pod
|
|
|
|
You can configure a volume to share one volume for
|
|
multiple uses in a single pod using the `volumeMounts.subPath` property to specify a `subPath` value inside a volume
|
|
instead of the volume's root.
|
|
|
|
[NOTE]
|
|
====
|
|
You cannot add a `subPath` parameter to an existing scheduled pod.
|
|
====
|
|
|
|
.Procedure
|
|
|
|
. To view the list of files in the volume, run the `oc rsh` command:
|
|
+
|
|
[source,terminal]
|
|
----
|
|
$ oc rsh <pod>
|
|
----
|
|
+
|
|
.Example output
|
|
[source,terminal]
|
|
----
|
|
sh-4.2$ ls /path/to/volume/subpath/mount
|
|
example_file1 example_file2 example_file3
|
|
----
|
|
|
|
. Specify the `subPath`:
|
|
+
|
|
.Example `Pod` spec with `subPath` parameter
|
|
[source,yaml]
|
|
----
|
|
apiVersion: v1
|
|
kind: Pod
|
|
metadata:
|
|
name: my-site
|
|
spec:
|
|
securityContext:
|
|
runAsNonRoot: true
|
|
seccompProfile:
|
|
type: RuntimeDefault
|
|
containers:
|
|
- name: mysql
|
|
image: mysql
|
|
volumeMounts:
|
|
- mountPath: /var/lib/mysql
|
|
name: site-data
|
|
subPath: mysql <1>
|
|
securityContext:
|
|
allowPrivilegeEscalation: false
|
|
capabilities:
|
|
drop: [ALL]
|
|
- name: php
|
|
image: php
|
|
volumeMounts:
|
|
- mountPath: /var/www/html
|
|
name: site-data
|
|
subPath: html <2>
|
|
securityContext:
|
|
allowPrivilegeEscalation: false
|
|
capabilities:
|
|
drop: [ALL]
|
|
volumes:
|
|
- name: site-data
|
|
persistentVolumeClaim:
|
|
claimName: my-site-data
|
|
----
|
|
<1> Databases are stored in the `mysql` folder.
|
|
<2> HTML content is stored in the `html` folder.
|