ceea9dda0d
Applied review feedback. Fixed 'grey bars' formatting. Fixed gerunds and lists Added abbreviations and references Change-Id: I104d678ce3ea52bddcbc141f8aad49ea1e1971db Signed-off-by: Keane Lim <keane.lim@windriver.com>
107 lines
3.8 KiB
ReStructuredText
107 lines
3.8 KiB
ReStructuredText
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.. vgr1561030583228
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.. _install-additional-rbd-provisioners:
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===================================
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Install Additional RBD Provisioners
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===================================
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You can launch additional dedicated rdb-provisioners to support specific
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applications using dedicated pools, storage classes, and namespaces.
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.. rubric:: |context|
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This can be useful if, for example, to allow an application to have control
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over its own persistent volume provisioner, that is, managing the Ceph
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pool, storage tier, allowed namespaces, and so on, without requiring the
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kubernetes admin to modify the default rbd-provisioner service in the
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kube-system namespace.
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This procedure uses standard Helm mechanisms to install a second
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rbd-provisioner.
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.. rubric:: |proc|
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#. Capture a list of monitors.
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This will be stored in the environment variable ``<MON\_LIST>`` and
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used in the following step.
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.. code-block:: none
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~(keystone_admin)$ MON_LIST=$(ceph mon dump 2>&1 | awk /^[0-2]:/'{print $2}' | awk -F'/' '{print " - "$1}')
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#. Create an overrides yaml file defining the new provisioner.
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In this example we will create the file
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/home/sysadmin/my-second-provisioner-overrides.yaml.
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.. code-block:: none
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~(keystone_admin)$ cat <<EOF > /home/sysadmin/my-second-provisioner-overrides.yaml
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global:
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adminId: admin
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adminSecretName: ceph-admin
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name: 2nd-provisioner
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provisioner_name: "ceph.com/2nd-rbd"
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classdefaults:
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monitors:
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${MON_LIST}
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classes:
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- name: 2nd-storage
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pool_name: another-pool
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chunk_size: 64
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crush_rule_name: storage_tier_ruleset
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replication: 1
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userId: 2nd-user-secret
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userSecretName: 2nd-user-secret
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rbac:
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clusterRole: 2nd-provisioner
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clusterRoleBinding: 2nd-provisioner
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role: 2nd-provisioner
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roleBinding: 2nd-provisioner
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serviceAccount: 2nd-provisioner
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EOF
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#. Install the chart.
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.. code-block:: none
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~(keystone_admin)$ helm upgrade --install my-2nd-provisioner stx-platform/rbd-provisioner --namespace=isolated-app --values=/home/sysadmin/my-second-provisioner-overrides.yaml
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Release "my-2nd-provisioner" does not exist. Installing it now.
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NAME: my-2nd-provisioner
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LAST DEPLOYED: Mon May 27 05:04:51 2019
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NAMESPACE: isolated-app
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STATUS: DEPLOYED
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...
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.. note::
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Helm automatically created the namespace **isolated-app** while
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installing the chart.
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#. Confirm that **my-2nd-provisioner** has been deployed.
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.. code-block:: none
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~(keystone_admin)$ helm list -a
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NAME REVISION UPDATED STATUS CHART APP VERSION NAMESPACE
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my-2nd-provisioner 1 Mon May 27 05:04:51 2019 DEPLOYED rbd-provisioner-0.1.0 isolated-app
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my-app3 1 Sun May 26 22:52:16 2019 DEPLOYED mysql-1.1.1 5.7.14 new-app3
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my-new-sc-app 1 Sun May 26 23:11:37 2019 DEPLOYED mysql-1.1.1 5.7.14 new-sc-app
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my-release 1 Sun May 26 22:31:08 2019 DEPLOYED mysql-1.1.1 5.7.14 default
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...
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#. Confirm that the **2nd-storage** storage class was created.
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.. code-block:: none
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~(keystone_admin)$ kubectl get sc --all-namespaces
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NAME PROVISIONER AGE
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2nd-storage ceph.com/2nd-rbd 61s
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general (default) ceph.com/rbd 6h39m
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special-storage-class ceph.com/rbd 5h58m
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You can now create and mount PVCs from the new rbd-provisioner's
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**2nd-storage** storage class, from within the **isolated-app**
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namespace.
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