63cd4f5fdc
Incorporated patchset 1 review comments Updated patchset 5 review comments Updated patchset 6 review comments Fixed merge conflicts Updated patchset 8 review comments Change-Id: Icd7b08ab69273f6073b960a13cf59905532f851a Signed-off-by: Juanita-Balaraj <juanita.balaraj@windriver.com>
221 lines
13 KiB
ReStructuredText
221 lines
13 KiB
ReStructuredText
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.. wyf1616954377690
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.. _enable-readwritemany-pvc-support-in-additional-namespaces:
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=========================================================
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Enable ReadWriteMany PVC Support in Additional Namespaces
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=========================================================
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The default general **cephfs-provisioner** storage class is enabled for the
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default, kube-system, and kube-public namespaces. To enable an additional
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namespace, for example for an application-specific namespace, a modification
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to the configuration \(Helm overrides\) of the **cephfs-provisioner** service
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is required.
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.. rubric:: |context|
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The following example illustrates the configuration of three additional
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application-specific namespaces to access the **cephfs-provisioner**
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**cephfs** storage class.
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.. note::
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Due to limitations with templating and merging of overrides, the entire
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storage class must be redefined in the override when updating specific
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values.
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.. rubric:: |proc|
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#. List installed Helm chart overrides for the platform-integ-apps.
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.. code-block:: none
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~(keystone_admin)]$ system helm-override-list platform-integ-apps
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+--------------------+----------------------+
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| chart name | overrides namespaces |
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+--------------------+----------------------+
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| ceph-pools-audit | [u'kube-system'] |
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| cephfs-provisioner | [u'kube-system'] |
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| helm-toolkit | [] |
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| rbd-provisioner | [u'kube-system'] |
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+--------------------+----------------------+
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#. Review existing overrides for the cephfs-provisioner chart. You will refer
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to this information in the following step.
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.. code-block:: none
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~(keystone_admin)]$ system helm-override-show platform-integ-apps cephfs-provisioner kube-system
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+--------------------+----------------------------------------------------------+
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| Property | Value |
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+--------------------+----------------------------------------------------------+
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| attributes | enabled: true |
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| | |
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| combined_overrides | classdefaults: |
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| | adminId: admin |
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| | adminSecretName: ceph-secret-admin |
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| | monitors: |
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| | - 192.168.204.3:6789 |
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| | - 192.168.204.1:6789 |
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| | - 192.168.204.2:6789 |
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| | classes: |
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| | - additionalNamespaces: |
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| | - default |
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| | - kube-public |
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| | chunk_size: 64 |
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| | claim_root: /pvc-volumes |
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| | crush_rule_name: storage_tier_ruleset |
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| | data_pool_name: kube-cephfs-data |
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| | fs_name: kube-cephfs |
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| | metadata_pool_name: kube-cephfs-metadata |
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| | name: cephfs |
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| | replication: 2 |
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| | userId: ceph-pool-kube-cephfs-data |
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| | userSecretName: ceph-pool-kube-cephfs-data |
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| | global: |
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| | replicas: 2 |
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| | |
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| name | cephfs-provisioner |
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| namespace | kube-system |
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| system_overrides | classdefaults: |
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| | adminId: admin |
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| | adminSecretName: ceph-secret-admin |
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| | monitors: ['192.168.204.3:6789', '192.168.204.1:6789', |
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| | '192.168.204.2:6789'] |
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| | classes: |
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| | - additionalNamespaces: [default, kube-public] |
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| | chunk_size: 64 |
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| | claim_root: /pvc-volumes |
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| | crush_rule_name: storage_tier_ruleset |
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| | data_pool_name: kube-cephfs-data |
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| | fs_name: kube-cephfs |
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| | metadata_pool_name: kube-cephfs-metadata |
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| | name: cephfs |
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| | replication: 2 |
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| | userId: ceph-pool-kube-cephfs-data |
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| | userSecretName: ceph-pool-kube-cephfs-data |
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| | global: {replicas: 2} |
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| | |
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| user_overrides | None |
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+--------------------+----------------------------------------------------------+
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#. Create an overrides yaml file defining the new namespaces.
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In this example, create the file /home/sysadmin/update-namespaces.yaml with the following content:
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.. code-block:: none
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~(keystone_admin)]$ cat <<EOF > ~/update-namespaces.yaml
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classes:
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- additionalNamespaces: [default, kube-public, new-app, new-app2, new-app3]
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chunk_size: 64
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claim_root: /pvc-volumes
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crush_rule_name: storage_tier_ruleset
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data_pool_name: kube-cephfs-data
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fs_name: kube-cephfs
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metadata_pool_name: kube-cephfs-metadata
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name: cephfs
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replication: 2
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userId: ceph-pool-kube-cephfs-data
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userSecretName: ceph-pool-kube-cephfs-data
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EOF
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#. Apply the overrides file to the chart.
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.. code-block:: none
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~(keystone_admin)]$ system helm-override-update --values /home/sysadmin/update-namespaces.yaml platform-integ-apps cephfs-provisioner kube-system
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+----------------+----------------------------------------------+
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| Property | Value |
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+----------------+----------------------------------------------+
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| name | cephfs-provisioner |
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| namespace | kube-system |
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| user_overrides | classes: |
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| | - additionalNamespaces: |
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| | - default |
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| | - kube-public |
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| | - new-app |
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| | - new-app2 |
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| | - new-app3 |
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| | chunk_size: 64 |
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| | claim_root: /pvc-volumes |
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| | crush_rule_name: storage_tier_ruleset |
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| | data_pool_name: kube-cephfs-data |
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| | fs_name: kube-cephfs |
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| | metadata_pool_name: kube-cephfs-metadata |
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| | name: cephfs |
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| | replication: 2 |
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| | userId: ceph-pool-kube-cephfs-data |
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| | userSecretName: ceph-pool-kube-cephfs-data |
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+----------------+----------------------------------------------+
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#. Confirm that the new overrides have been applied to the chart.
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The following output has been edited for brevity.
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.. code-block:: none
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~(keystone_admin)]$ system helm-override-show platform-integ-apps cephfs-provisioner kube-system
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+--------------------+---------------------------------------------+
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| Property | Value |
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+--------------------+---------------------------------------------+
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| user_overrides | classes: |
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| | - additionalNamespaces: |
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| | - default |
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| | - kube-public |
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| | - new-app |
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| | - new-app2 |
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| | - new-app3 |
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| | chunk_size: 64 |
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| | claim_root: /pvc-volumes |
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| | crush_rule_name: storage_tier_ruleset |
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| | data_pool_name: kube-cephfs-data |
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| | fs_name: kube-cephfs |
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| | metadata_pool_name: kube-cephfs-metadata |
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| | name: cephfs |
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| | replication: 2 |
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| | userId: ceph-pool-kube-cephfs-data |
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| | userSecretName: ceph-pool-kube-cephfs-data|
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+--------------------+---------------------------------------------+
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#. Apply the overrides.
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#. Run the :command:`application-apply` command.
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.. code-block:: none
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~(keystone_admin)]$ system application-apply platform-integ-apps
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+---------------+----------------------------------+
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| Property | Value |
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+---------------+----------------------------------+
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| active | True |
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| app_version | 1.0-24 |
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| created_at | 2019-05-26T06:22:20.711732+00:00 |
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| manifest_file | manifest.yaml |
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| manifest_name | platform-integration-manifest |
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| name | platform-integ-apps |
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| progress | None |
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| status | applying |
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| updated_at | 2019-05-26T22:27:26.547181+00:00 |
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+---------------+----------------------------------+
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#. Monitor progress using the :command:`application-list` command.
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.. code-block:: none
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~(keystone_admin)]$ system application-list
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+-------------+---------+---------------+---------------+---------+-----------+
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| application | version | manifest name | manifest file | status | progress |
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+-------------+---------+---------------+---------------+---------+-----------+
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| platform- | 1.0-24 | platform | manifest.yaml | applied | completed |
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| integ-apps | | -integration | | | |
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| | | -manifest | | | |
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+-------------+---------+---------------+---------------+---------+-----------+
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You can now create and mount PVCs from the default |RBD| provisioner's
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**general** storage class, from within these application-specific
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namespaces.
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