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4.5. Deploying Red Hat Openshift Container Storage in Converged mode for Applications with Registry, Logging, and Metrics
- In your inventory file, set the following variables under
[OSEv3:vars]:[OSEv3:vars] ... openshift_hosted_registry_selector='node-role.kubernetes.io/infra=true' openshift_hosted_registry_storage_volume_size=5Gi openshift_hosted_registry_storage_kind=glusterfs [OSEv3:vars] ... openshift_metrics_install_metrics=true openshift_metrics_storage_kind=dynamic openshift_metrics_hawkular_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_metrics_cassandra_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_metrics_heapster_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_metrics_storage_volume_size=10Gi openshift_metrics_cassandra_pvc_storage_class_name="glusterfs-registry-block" openshift_logging_install_logging=true openshift_logging_es_pvc_dynamic=true openshift_logging_kibana_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_logging_curator_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_logging_es_nodeselector={"node-role.kubernetes.io/infra": "true"} openshift_logging_es_pvc_size=10Gi openshift_logging_es_pvc_storage_class_name="glusterfs-registry-block" openshift_storage_glusterfs_namespace=app-storage openshift_storage_glusterfs_storageclass=true openshift_storage_glusterfs_storageclass_default=false openshift_storage_glusterfs_block_deploy=false openshift_storage_glusterfs_registry_namespace=infra-storage openshift_storage_glusterfs_registry_storageclass=false openshift_storage_glusterfs_registry_storageclass_default=false openshift_storage_glusterfs_registry_block_deploy=true openshift_storage_glusterfs_registry_block_host_vol_create=true openshift_storage_glusterfs_registry_block_host_vol_size=100 openshift_storage_glusterfs_registry_block_storageclass=true openshift_storage_glusterfs_registry_block_storageclass_default=false - Add
glusterfsandglusterfs_registryin the[OSEv3:children]section to enable the[glusterfs]and[glusterfs_registry]groups:[OSEv3:children] ... glusterfs glusterfs_registry - Add
[glusterfs]and[glusterfs_registry]sections with entries for each storage node that will host the GlusterFS storage. For each node, setglusterfs_devicesto a list of raw block devices that will be completely managed as part of a GlusterFS cluster. There must be at least one device listed. Each device must be bare, with no partitions or LVM PVs. Specifying the variable takes the form:<hostname_or_ip> glusterfs_devices='[ "</path/to/device1/>", "</path/to/device2>", ... ]'For example:[glusterfs] node11.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' node12.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' node13.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' node14.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' [glusterfs_registry] node15.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' node16.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' node17.example.com glusterfs_devices='[ "/dev/xvdc", "/dev/xvdd" ]' - Add the hosts listed under
[glusterfs]and[glusterfs_registry]to the[nodes]group:[nodes] ... node11.example.com openshift_node_group_name="node-config-compute" node12.example.com openshift_node_group_name="node-config-compute" node13.example.com openshift_node_group_name="node-config-compute" node14.example.com openshift_node_group_name="node-config-compute" node15.example.com openshift_node_group_name="node-config-infra" node16.example.com openshift_node_group_name="node-config-infra" node17.example.com openshift_node_group_name="node-config-infra" - The preceding steps detail options that need to be added to a larger, complete inventory file. To use the complete inventory file to deploy {gluster} provide the file path as an option to the following playbooks:
- For an initial OpenShift Container Platform installation:
ansible-playbook -i <path_to_inventory_file> /usr/share/ansible/openshift-ansible/playbooks/prerequisites.yml ansible-playbook -i <path_to_inventory_file> /usr/share/ansible/openshift-ansible/playbooks/deploy_cluster.yml - For a standalone installation onto an existing OpenShift Container Platform cluster:
ansible-playbook -i <path_to_inventory_file> /usr/share/ansible/openshift-ansible/playbooks/openshift-glusterfs/config.yml ansible-playbook -i <path_to_the_inventory_file> /usr/share/ansible/openshift-ansible/playbooks/openshift-logging/config.yml ansible-playbook -i <path_to_the_inventory_file> /usr/share/ansible/openshift-ansible/playbooks/openshift-metrics/config.yml
- To verify the deployment see, Section 4.6, “Verify your Deployment”.
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