Pre-deployment validation

You can validate configuration parameters via the playbooks/pre-checks.yml playbook. The playbook attempts to verify that the configuration parameters defined in the group_vars/all/vars.yml and group_vars/all/vault.yml files contain appropriate values. It validates access to the vCenter instance hosting the HPE SimpliVity cluster and verifies the requested datacenter and vm_portgroup exist. It checks that the configured DNS and NTP servers are valid. It also attempts to ensure the hostnames and IP addresses that will be used when creating the RKE admin cluster (defined in the hosts.yml file) are not already being used elsewhere in the environment.

$ cd ~/Rancher-on-SimpliVity
$ ansible-playbook -i hosts playbooks/pre-checks.yml --vault-password-file .vault_pass

The playbook performs the following checks:

• Test reachability to vCenter host
• Verify vCenter credentials
• Verify existence of datacenter
• Verify existence of portgroup
• Verify IP addresses for RKE admin cluster are not in use
• Verify DNS server(s)
• Verify NTP server(s)