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Ansible Galaxy @ Berlin Meetup 0415

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Dan Vaida
Dan Vaida

Getting around with Ansible Galaxy. What you should try to look after when writing your own role before submitting it to Galaxy, some high-quality roles examples and some facts on Galaxy at the moment.

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Ansible Galaxy @ Berlin Meetup 0415
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Getting around with 3
4 12511 users and 3325 role in total
ansible-galaxy ¢ init sets up the skeleton of the role ¢ info queries Galaxy API to fetch info about a role ¢ install pulls down a role from Galaxy and installs it ¢ list shows installed roles and their versions ¢ remove rm-rf gracefully removes a role 5
You¨re just starting but you wanna help? ¢ Look for a role on ＾Galaxy￣ before starting from scratch => great time saver ¢ Review the role (mention what doesn¨t work / isn¨t clear or simply give kudos) => it helps a lot! 6
Calling proficient ansiblings: share your roles! ¢ don¨t assume anything ¢ use git tags as role versions (integrates nicely with Galaxy) ¢ don¨t forget: it¨s just a role, so no inventories or playbooks ¢ prefix the vars with rolename_ (ensures no conflicts) ¢ if your role relies on other roles, use meta/main.yml to specify the roles dependencies; requirements.yml is a bonus ¢ consistent naming: github repo name == galaxy role name ¢ use Ansible itself to do unit tests through Jenkins / Travis (with Ansible¨s assert module) 7
Some great roles that I re-use often ¢ ANXS.generic-users ¢ geerlingguy.apache ¢ jdauphant.nginx ¢ f500.elasticsearch ¢ lesmyrmidons.mongodb ¢ graylog2.graylog ¢ geerlingguy.solr ¢ geerlingguy.java ¢ etc. 8
Demo 9
Closing words When installing Galaxy roles, specify the version so that you won¨t run into regressions when the maintainer pushes new versions => predictability 10
Closing words When you write a role that has other Galaxy roles dependencies, don¨t try to overwrite the other roles¨ vars in your role; your role should only have vars for itself => instruct the user to define / include vars in the playbook or pass them as extra vars 11
Questions? 12
Thanks! 際際滷s: tinyurl.com/AnsibleBerlin0415 13

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Ansible Galaxy @ Berlin Meetup 0415

  • 2. 2
  • 4. 4 12511 users and 3325 role in total
  • 5. ansible-galaxy ¢ init sets up the skeleton of the role ¢ info queries Galaxy API to fetch info about a role ¢ install pulls down a role from Galaxy and installs it ¢ list shows installed roles and their versions ¢ remove rm-rf gracefully removes a role 5
  • 6. You¨re just starting but you wanna help? ¢ Look for a role on ＾Galaxy￣ before starting from scratch => great time saver ¢ Review the role (mention what doesn¨t work / isn¨t clear or simply give kudos) => it helps a lot! 6
  • 7. Calling proficient ansiblings: share your roles! ¢ don¨t assume anything ¢ use git tags as role versions (integrates nicely with Galaxy) ¢ don¨t forget: it¨s just a role, so no inventories or playbooks ¢ prefix the vars with rolename_ (ensures no conflicts) ¢ if your role relies on other roles, use meta/main.yml to specify the roles dependencies; requirements.yml is a bonus ¢ consistent naming: github repo name == galaxy role name ¢ use Ansible itself to do unit tests through Jenkins / Travis (with Ansible¨s assert module) 7
  • 8. Some great roles that I re-use often ¢ ANXS.generic-users ¢ geerlingguy.apache ¢ jdauphant.nginx ¢ f500.elasticsearch ¢ lesmyrmidons.mongodb ¢ graylog2.graylog ¢ geerlingguy.solr ¢ geerlingguy.java ¢ etc. 8
  • 10. Closing words When installing Galaxy roles, specify the version so that you won¨t run into regressions when the maintainer pushes new versions => predictability 10
  • 11. Closing words When you write a role that has other Galaxy roles dependencies, don¨t try to overwrite the other roles¨ vars in your role; your role should only have vars for itself => instruct the user to define / include vars in the playbook or pass them as extra vars 11