K3s Inventory Matrix - Initial Install

1

Hello,
I am newbie to K3s so, this might be a dumb question.

I am working on an Ansible playbook to standup a single node K3s, validate it is operational, & then install a 3rd-party pod.

The issue I am running into is the validate operations. The big questions I have is:

  • I need a list of ‘expected’ pods (inventory) prior to deployment. Does this information exists somewhere?
  • How do I know all the expected pods have been initialized before continuing with any operation?

Currently, the playbook will:

  • deploy the K3s via https://get.k3s.io
  • wait for 60 secs
  • run the equivalent of 'kubectl get pods -all-namespaces [uses the kubernetes.core module]
  • parse the above output for only the pod full names (minus the helm-install-traefik)
    • should result in the following pods
      • local-path-provisioner-{{uid}}
      • coredns-{{uid}}
      • metrics-server-{{uid}}
      • svclb-traefik-{{uid}}
      • traefik-{{uid}}
  • loop through the above list and wait for each pod to be in a ‘running’ state

The problem with this solution is:

  • No idea how many pods are to be expected
  • Without an “inventory matrix”, no way to validate.
    • If I hardcode the names, then any changes to the base install pods will break the workflow.

Solution (if something possible or already exists):

  • Read a single file with list each scenario and the associated pods
    • Single node deployment
      • pod#1
      • pod#2
      • pod#3
    • Cluster node deployment
      • All pods of single node
      • pod#4

OR

Have Ansible read any appropriate manifest files to parse the base name of the pod and build the inventory matrix (list).

Any suggestions would be helpful.
Tx