Before running the kubespray playbook, let's check whether hosts.ini and Ansible itself work properly or not:
- To do that, use the Ansible ad hoc command, using the ping module, as shown in the following screenshot:
- This result indicates SUCCESS. But if you see the following error, probably the IP address is wrong or the target machine is down, so please the check target machine first:
- Next, check your authority whether you can escalate a privilege on the target machine or not. In other words, whether you can run sudo or not. This is because you will need to install Kubernetes, Docker, and some related binaries, and configurations that need a root privilege. To confirm that, add the -b (become) option, as shown in the following screenshot:
- With the -b option, it actually tries to perform sudo on the target machine. If you see SUCCESS, you are all set! Go to the How it works… section to run kubespray.
If you're unfortunate enough to see some errors, please refer to the following section to solve Ansible issues.