diff options
| author | Erin A Boyd <eboyd@redhat.com> | 2017-10-31 13:43:36 -0600 |
|---|---|---|
| committer | Erin A Boyd <eboyd@redhat.com> | 2017-11-09 09:30:12 -0700 |
| commit | 03f5a04785c97c873c35e1656b0d03019679a487 (patch) | |
| tree | 91811c14db6664eeaa27ef8fdcb90b349efe6205 | |
| parent | 8903c1c64231c6532eb51e21ea8cf2433ebae93d (diff) | |
Update RawBock proposal with read-only use case
| -rw-r--r-- | contributors/design-proposals/storage/raw-block-pv.md | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/contributors/design-proposals/storage/raw-block-pv.md b/contributors/design-proposals/storage/raw-block-pv.md index d4132c78..aaaa4cf4 100644 --- a/contributors/design-proposals/storage/raw-block-pv.md +++ b/contributors/design-proposals/storage/raw-block-pv.md @@ -528,6 +528,40 @@ spec: name: my-nginx-data readOnly: false ``` +## UC9: + +DESCRIPTION: +* A user wishes to read data from a read-only raw block device, an example might be a database for analytics processing. + +ADMIN: +* Admin creates a 1 block devices and with the intention consumption of read-only. + +USER: +* User creates pod and specifies 'readOnly' as a parameter in the persistent volume claim to indicate they would +like to be bound to a PV with this setting enabled. + +``` +apiVersion: v1 +kind: Pod +metadata: + name: nginx-pod-block-001 +spec: + containers: + - name: nginx-container + image: nginx:latest + ports: + - containerPort: 80 + volumeDevices: + - name: data + devicePath: /dev/xvda + volumes: + - name: data + persistentVolumeClaim: + claimName: block-pvc001 + readOnly: true #flag indicating read-only for container runtime +``` +*** Note: the readOnly field already exists in the PersistentVolumeClaimVolumeSource above and will dictate the values set by the container runtime options *** + # Container Runtime considerations It is important the values that are passed to the container runtimes are valid and support the current implementation of these various runtimes. Listed below are a table of various runtime and the mapping of their values to what is passed from the kubelet. @@ -734,4 +768,4 @@ Feature: Discovery of block devices Milestone 3: Plugin changes with dynamic provisioning support (GCE, AWS & GlusterFS) - Milestone 4: Flex volume update
\ No newline at end of file + Milestone 4: Flex volume update |