Add minikube role for Kubernetes cluster on indri

- Create ansible/roles/minikube for minikube cluster setup
- Use podman driver with cri-o runtime
- Set memory to 7800MB (vs 8192 podman) to account for VM overhead
- Add minikube role to indri playbook
- Update k8s-migration plan with implementation details

Deployed with Kubernetes v1.34.0 and CRI-O 1.24.6.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ansible/playbooks/indri.yml

@@ -105,6 +105,8 @@
       tags: zot_metrics
     - role: podman
       tags: podman
+    - role: minikube
+      tags: minikube
     - role: plex_metrics
       tags: plex_metrics
     - role: postgresql

ansible/roles/minikube/defaults/main.yml

@@ -0,0 +1,8 @@
+---
+# Minikube cluster configuration
+minikube_cpus: 4
+# Note: Must be less than podman machine memory (8192MB) to account for overhead
+minikube_memory: 7800
+minikube_disk_size: "200g"
+minikube_driver: podman
+minikube_container_runtime: cri-o

ansible/roles/minikube/handlers/main.yml

@@ -0,0 +1,9 @@
+---
+# Minikube handlers
+# Note: Restarting minikube is a heavy operation and may require manual intervention
+
+- name: Restart minikube
+  ansible.builtin.shell: |
+    minikube stop 2>/dev/null || true
+    minikube start
+  changed_when: true

ansible/roles/minikube/tasks/main.yml

@@ -0,0 +1,51 @@
+---
+# Minikube installation and cluster setup for indri
+# Requires podman machine to be running (see podman role)
+#
+# NOTE: Similar to podman, minikube start may have issues when run via SSH.
+# If cluster fails to start, manually run on indri:
+#   minikube start --driver=podman --container-runtime=cri-o \
+#     --cpus=4 --memory=8192 --disk-size=200g
+
+- name: Install minikube via homebrew
+  community.general.homebrew:
+    name: minikube
+    state: present
+
+- name: Install kubectl via homebrew
+  community.general.homebrew:
+    name: kubectl
+    state: present
+
+- name: Check if minikube cluster exists
+  ansible.builtin.command:
+    cmd: minikube status --format={% raw %}'{{.Host}}'{% endraw %}
+  register: minikube_status
+  changed_when: false
+  failed_when: false
+
+- name: Start minikube cluster
+  ansible.builtin.command:
+    cmd: >
+      minikube start
+      --driver={{ minikube_driver }}
+      --container-runtime={{ minikube_container_runtime }}
+      --cpus={{ minikube_cpus }}
+      --memory={{ minikube_memory }}
+      --disk-size={{ minikube_disk_size }}
+  register: minikube_start
+  changed_when: minikube_start.rc == 0
+  failed_when: false  # Don't fail - may need manual intervention like podman
+  when: minikube_status.rc != 0 or 'Running' not in minikube_status.stdout
+
+- name: Check minikube status after start attempt
+  ansible.builtin.command:
+    cmd: minikube status --format={% raw %}'{{.Host}}'{% endraw %}
+  register: minikube_final_status
+  changed_when: false
+  failed_when: false
+
+- name: Warn if minikube failed to start
+  ansible.builtin.debug:
+    msg: "WARNING: minikube may not have started properly. Run 'minikube start' manually on indri if needed. Status: {{ minikube_final_status.stdout | default('unknown') }}"
+  when: minikube_final_status.rc != 0 or 'Running' not in minikube_final_status.stdout

plans/k8s-migration.md

@@ -598,6 +598,10 @@ ssh indri 'kubectl get nodes'
 # Expected: minikube   Ready    control-plane   ...
 ```
 
+**Implementation Details:**
+- Changed `minikube_memory` from 8192 to 7800 because podman machine reports slightly less available memory (7908MB) due to VM overhead. Minikube rejects memory requests exceeding what podman reports.
+- Deployed with Kubernetes v1.34.0 and CRI-O 1.24.6.
+
 ---
 
 ### Step 0.10: Configure Kubeconfig on Gilbert