- name: Set Up Redis Cluster
  hosts: init
  become: true
  tasks:
    - name: Create Redis Config Map
      kubernetes.core.k8s:
        state: present
        src: /tmp/k8s/redis/01-config-map.yml
        kubeconfig: /etc/rancher/k3s/k3s.yaml

    - name: Create Redis Nodes
      kubernetes.core.k8s:
        state: present
        src: /tmp/k8s/redis/02-redis.yml
        kubeconfig: /etc/rancher/k3s/k3s.yaml

    - name: Wait for Redis Nodes
      ansible.builtin.command:
        kubectl -n=redis rollout status --timeout=10m sts/redis-cluster
      changed_when: false

    - name: Create ClusterIP Service
      kubernetes.core.k8s:
        state: present
        src: /tmp/k8s/redis/03-cluster-ip.yml
        kubeconfig: /etc/rancher/k3s/k3s.yaml

    - name: Grab Node IPs
      ansible.builtin.shell:
        echo $(kubectl get pods  -l app=redis-cluster -n redis -o json | jq -r '.items | map(.status.podIP) | join(":6379 ")'):6379
      args:
        executable: /bin/bash
      register: redis_node_ips
      changed_when: false
      tags:
        - skip_ansible_lint

    - name: Display Node IPs
      ansible.builtin.debug:
        msg: "{{ redis_node_ips.stdout }}"

    - name: Check if Redis cluster is already active
      ansible.builtin.shell: >
        set -o pipefail
        kubectl exec redis-cluster-0 -n redis -- redis-cli -p 6379 cluster info | grep cluster_state
      args:
        executable: /bin/bash
      register: redis_cluster_state
      changed_when: false
      failed_when: false

    - name: Activate Redis Cluster
      ansible.builtin.shell: >
        kubectl exec redis-cluster-0 -n redis -- redis-cli --cluster create --cluster-replicas 1 {{ redis_node_ips.stdout }} --cluster-yes
      when: "'cluster_state:ok' not in redis_cluster_state.stdout"
      changed_when: false