Effective ansible
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The document discusses effective ways to use Ansible including setting up passwordless SSH authentication, limiting playbooks to single machines, managing private keys, using roles for scalability, and tuning Ansible for performance. The objective is to deploy Kubernetes from scratch with one command using best practices for Ansible configuration, authentication, and organization.
Effective ansible
- 1. Effective ansible Wu Hong-Guang Helion engineer
- 2. Objetive: Deploy a kubernetes on HOS3.0 deployment just with one command 2
- 3. ONE-TIME EFFORT FOR PASSWORDLESS ANSIBLE Passwordless ssh 3
- 4. Set ansible to work with password ssh – Set ansible.cfg to work with password 4
- 5. Upload pub key – Upload the public key 5
- 6. Safely limiting Ansible playbooks to a single machine a cute little trick to specify a single host on the command line (or multiple hosts) without an intermediary inventory: $ansible-playbook -i “hlm101," site.yml – Note the comma (,) at the end; this signals that it's a list, not a file 6
- 7. $ansible-playbook authorize-key.yml Input your ssh password then start to play 7
- 8. Use ssh-agent or keychain to manage and secure your private key 8
- 9. Quick tip 1: Passwordless putty 9
- 10. Quick tip 2: clone github with proxy using netcat 10
- 11. Sacle ansible in Roles way 11
- 12. Ansible out-source role using galaxy 12
- 13. Galaxy to Building Role Scaffolding 13
- 14. Tuning up ansible to run faster 14
- 15. Ansible should be deployed as close as possible to the remote node 15
- 16. Check what you have learned: Deploy a kubernetes from scratch 16