Generating ephermal values in ansible
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The document discusses automating the generation of port numbers and usernames in Ansible to minimize manual effort and reduce human error. It outlines the challenges faced when generating dynamic values and suggests using dynamic includes for solutions. The conclusion emphasizes the benefits of generating values on the fly, leading to simpler data definitions and less manual work.
Generating ephermal values in ansible
- 2. Problem ● Some services needs new port number for new instance, for example php-fpm with Apache pre 2.4.9. ● I can add new port number into website definiton – But it is stupid hand work! – What kind of tool is Ansible, If it cannot do so simple thing?
- 4. Solution ● 2 problems to solve: – Find out new port value. – Save it for later use. ● We need to do several steps per value, which is/was problem in Ansible. ● Dynamic includes to the rescue!
- 5. apache.yml
- 7. What about generating usernames? ● You can use previous solution to generate non- random users base on pattern like user1, user2, …. ● But what if we want usernames to be as random as possible? ● We can take similar approach.
- 8. Ssh.yml
- 10. Conclusion ● You can generate various values on the fly as needed thru Ansible. – Simpler data definitions. – One less place for humans errors. – A little less of stupid work. ● Profit!
- 11. Q/A ● Want to know more about ansible: Doing trainings: www.ansible.cz ● Thanks! David Karban david@karban.eu www.karban.eu https://twitter.com/davidkarban https://github.com/davidkarban/