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[section_request] Testing Kubernetes with Molecule, Kind, and Ansible #36

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geerlingguy opened this issue Mar 12, 2020 · 5 comments · Fixed by #67
Closed

[section_request] Testing Kubernetes with Molecule, Kind, and Ansible #36

geerlingguy opened this issue Mar 12, 2020 · 5 comments · Fixed by #67

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@geerlingguy
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geerlingguy commented Mar 12, 2020

I was just thinking, I don't have a dedicated chapter to testing Kubernetes infrastructure configurations, but that's one thing that's actually easier to do with Molecule + Ansible than (IMO) with most other solutions, especially in CI. I already have things working in GitHub Actions and Travis CI, so I could do a chapter that introduces:

  • Using Kind to create a lightweight Kubernetes environment locally or in CI.
  • Using Molecule to test Ansible playbooks and roles.
  • Using Molecule to create a Kind cluster and test k8s resources on it with Ansible (similar to how I use it for this book's playbooks in some cases, and for tower-operator and other K8s projects).
  • Using Molecule in GitHub Actions (and/or Travis CI) to run tests using CI for your project.
@geerlingguy
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geerlingguy commented Mar 12, 2020

The Molecule setup in the official Ansible Kubernetes Collection is also a pretty good / thorough example: https://github.com/ansible-collections/kubernetes/blob/master/.github/workflows/ci.yml#L64-L95 (the book example would be a bit more lightweight than that, though—that molecule playbook is testing a heck of a lot that we probably wouldn't need to test).

@geerlingguy
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geerlingguy commented Mar 29, 2020

Did some initial work on this tonight. My plan is to build a playbook which deploys some sort of application into Kubernetes (something simple for now, since the point is to show how Molecule + Kind work together, mainly) and have it work with maybe both Kind and also either a regular cluster (with delegated driver and managed: false), or a Minikube cluster (similar to the Kind configuration?).

geerlingguy added a commit that referenced this issue Aug 28, 2020
Issue #36: Add an example testing with Molecule and Kind.
@geerlingguy geerlingguy reopened this Aug 28, 2020
@geerlingguy
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geerlingguy commented Aug 28, 2020

Still working on the prose in chapter 7...

@geerlingguy
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geerlingguy commented Aug 31, 2020

Lots of commits here! I'm just about finished with this chapter. It's been a fun one :)

@geerlingguy
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geerlingguy commented Aug 31, 2020

First draft complete, I'm doing a once-over review and closing this issue. Hopefully will be posting a new version of the book in the next week!

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