There is also a RPM SPEC file provided, if you like to build an RPM before you install.
Script which the user runs and then answers a list of questions to create set of inventory_file options to be incorporated into their larger inventory_file for running openshift-ansible playbooks. The goal is to reduce the complexity and error prone nature of needing to know the correct inventory_file options for a particular OCP version. CIC will generate inventory file options for OCP 3.9, OCP 3.10 and OCP 3.11.
Embedded in the answers will be calculations or ‘pre-flight checks’. An example is the minimum size for the block_host_vol_size (GB). The minimum size is equal to all of the blockvolume PVs added up for metrics and logging + 30% overhead which is a good practice for file system overhead. Also, there is a calculation done for the Total available storage compared to the Total allocated storage as well as a check to make sure the size of any Persistent Volume (PV) does not exceed the size of the raw storage devices. Both of these conditions, if violated, will print out a Warning message and the user will need to try again.
$ cic -o <filename>
What version of OpenShift Container Platform are you deploying (3.9, 3.10 or 3.11)?: 3.9
------------------------------------------------------------
CNS - Inventory File Creator
------------------------------------------------------------
''
The output is NOT A COMPLETE Inventory File.
Created Inventory file options should be copied and pasted into
the larger openshift-ansible inventory file for your deployment.
''
1. Storage for Applications + Registry
2. Storage for Applications + Logging
3. Storage for Applications + Metrics
4. Storage for Applications + Registry + Logging + Metrics
5. Storage for Applications Only
------------------------------------------------------------
Enter your choice [1-5] : 4
------------------------------------------------------------
For this configuration 7 nodes are recommended
With a minimum of 3 required
------------------------------------------------------------
How many nodes are available ?: 6
What hosts will be used for application storage (IP/FQDN) ?: ip-172-16-17-219.us-west-2.compute.internal ip-172-16-47-113.us-west-2.compute.internal ip-172-16-61-81.us-west-2.compute.internal
What are the raw storage devices for these hosts(/dev/<device>) ?: /dev/xvdf /dev/xvdg
What is the size of each raw storage device (GB) ?: 100
What is the size for the registry persistent volume (GB)?: 10
How many replicas for logging ?: 3
What is the size for each logging persistent volume (GB) ?: 40
What is the size for each metrics persistent volume (GB) ?: 20
What hosts will be used for CNS logging + metrics backend storage (IP/FQDN) ?: ip-172-16-17-115.us-west-2.compute.internal ip-172-16-17-68.us-west-2.compute.internal ip-172-16-28-160.us-west-2.compute.internal
What are the raw storage devices for logging + metrics backend on these hosts (/dev/<device>) ?: /dev/xvdf /dev/xvdg
What is the size of each raw storage device (GB) ? : 100
# Cluster 1
# Total Storage allocated (GB) = 0
# Total Storage available (GB) = 200
# Cluster 2
# Total Storage allocated (GB) = 192
# Total Storage available (GB) = 200
[OSEv3:children]
glusterfs
glusterfs_registry
[OSEv3:vars]
# registry
openshift_hosted_registry_storage_kind=glusterfs
openshift_hosted_registry_storage_volume_size=10Gi
openshift_hosted_registry_selector="region=infra"
# logging
openshift_logging_install_logging=true
openshift_logging_es_pvc_dynamic=true
openshift_logging_es_pvc_size=40Gi
openshift_logging_es_cluster_size=3
openshift_logging_es_pvc_storage_class_name='glusterfs-registry-block'
openshift_logging_kibana_nodeselector={"region":"infra"}
openshift_logging_curator_nodeselector={"region":"infra"}
openshift_logging_es_nodeselector={"region":"infra"}
# metrics
openshift_metrics_install_metrics=true
openshift_metrics_storage_kind=dynamic
openshift_metrics_storage_volume_size=20Gi
openshift_metrics_cassanda_pvc_storage_class_name='glusterfs-registry-block'
openshift_metrics_hawkular_nodeselector={"region":"infra"}
openshift_metrics_cassandra_nodeselector={"region":"infra"}
openshift_metrics_heapster_nodeselector={"region":"infra"}
# Container image to use for glusterfs pods
openshift_storage_glusterfs_image=registry.access.redhat.com/rhgs3/rhgs-server-rhel7
openshift_storage_glusterfs_version=v3.9
# Container image to use for glusterblock-provisioner pod
openshift_storage_glusterfs_block_image=registry.access.redhat.com/rhgs3/rhgs-gluster-block-prov-rhel7
openshift_storage_glusterfs_block_version=v3.9
# Container image to use for heketi pods
openshift_storage_glusterfs_heketi_image=registry.access.redhat.com/rhgs3/rhgs-volmanager-rhel7
openshift_storage_glusterfs_heketi_version=v3.9
# CNS storage cluster
openshift_storage_glusterfs_namespace=app-storage
openshift_storage_glusterfs_storageclass=true
openshift_storage_glusterfs_storageclass_default=false
# CNS storage for OpenShift infrastructure
openshift_storage_glusterfs_registry_namespace=infra-storage
openshift_storage_glusterfs_registry_storageclass=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=182
openshift_storage_glusterfs_registry_block_storageclass=true
openshift_storage_glusterfs_registry_block_storageclass_default=false
[glusterfs]
ip-172-16-17-219.us-west-2.compute.internal glusterfs_zone=1 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'
ip-172-16-47-113.us-west-2.compute.internal glusterfs_zone=2 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'
ip-172-16-61-81.us-west-2.compute.internal glusterfs_zone=3 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'
[glusterfs_registry]
ip-172-16-17-115.us-west-2.compute.internal glusterfs_zone=1 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'
ip-172-16-17-68.us-west-2.compute.internal glusterfs_zone=2 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'
ip-172-16-28-160.us-west-2.compute.internal glusterfs_zone=3 glusterfs_devices='["/dev/xvdf", "/dev/xvdg"]'