k3s-ansible/roles/k3s_server_post/tasks/calico.yml

---
- name: Deploy Calico to cluster
  when: ansible_hostname == hostvars[groups[group_name_master | default('master')][0]]['ansible_hostname']
  run_once: true
  block:
    - name: Create manifests directory on first master
      ansible.builtin.file:
        path: /tmp/k3s
        state: directory
        owner: root
        group: root
        mode: "0755"

    - name: "Download to first master: Calico CRD bundle for {{ calico_tag }}"
      ansible.builtin.get_url:
        url: https://raw.githubusercontent.com/projectcalico/calico/{{ calico_tag }}/manifests/v1_crd_projectcalico_org.yaml # noqa yaml[line-length]
        dest: /tmp/k3s/v1_crd_projectcalico_org.yaml
        owner: root
        group: root
        mode: "0755"
      register: calico_crd_download
      retries: "{{ download_retries }}"
      delay: "{{ download_delay }}"
      until: calico_crd_download is succeeded

    - name: "Download to first master: manifest for Tigera Operator and Calico CRDs"
      ansible.builtin.get_url:
        url: https://raw.githubusercontent.com/projectcalico/calico/{{ calico_tag }}/manifests/tigera-operator.yaml
        dest: /tmp/k3s/tigera-operator.yaml
        owner: root
        group: root
        mode: "0755"
      register: tigera_operator_download
      retries: "{{ download_retries }}"
      delay: "{{ download_delay }}"
      until: tigera_operator_download is succeeded

    - name: Apply Calico CRD bundle with server-side apply
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }}
        apply --server-side --force-conflicts
        -f /tmp/k3s/v1_crd_projectcalico_org.yaml
      register: apply_crds
      changed_when: >-
        'created' in apply_crds.stdout or
        'configured' in apply_crds.stdout or
        'applied' in apply_crds.stdout
      failed_when: apply_crds.rc != 0

    - name: Apply Tigera Operator manifest idempotently with server-side apply
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }}
        apply --server-side --force-conflicts
        -f /tmp/k3s/tigera-operator.yaml
      register: apply_operator
      changed_when: >-
        'created' in apply_operator.stdout or
        'configured' in apply_operator.stdout or
        'applied' in apply_operator.stdout
      failed_when: apply_operator.rc != 0

    - name: Wait for Tigera Operator and managed CRDs to become available
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }} wait {{ item.type }}/{{ item.name }}
        {% if item.namespace is defined %}--namespace='{{ item.namespace }}'{% endif %}
        --for=condition={{ item.condition }}
        --timeout=30s
      register: tigera_result
      changed_when: false
      until: tigera_result is succeeded
      retries: 7
      delay: 7
      with_items:
        - { name: tigera-operator, type: deployment, namespace: tigera-operator, condition: Available=True }
        - { name: installations.operator.tigera.io, type: crd, condition: Established }
        - { name: apiservers.operator.tigera.io, type: crd, condition: Established }
      loop_control:
        label: "{{ item.type }}/{{ item.name }}"

    - name: Copy Calico custom resources manifest to first master
      ansible.builtin.template:
        src: calico.crs.j2
        dest: /tmp/k3s/custom-resources.yaml
        owner: root
        group: root
        mode: "0755"

    - name: Apply Calico custom resources
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }}
        apply -f /tmp/k3s/custom-resources.yaml
      register: apply_cr
      changed_when: >-
        'configured' in apply_cr.stdout or
        'created' in apply_cr.stdout or
        'unchanged' in apply_cr.stdout
      failed_when: apply_cr.rc != 0

    - name: Wait for Calico system resources to be available
      ansible.builtin.command: >-
        {% if item.type == 'daemonset' %}
        {{ k3s_kubectl_binary | default('k3s kubectl') }} wait pods
        --namespace='{{ item.namespace }}'
        --selector={{ item.selector }}
        --for=condition=Ready
        {% else %}
        {{ k3s_kubectl_binary | default('k3s kubectl') }} wait {{ item.type }}/{{ item.name }}
        --namespace='{{ item.namespace }}'
        --for=condition=Available
        {% endif %}
        --timeout=30s
      register: cr_result
      changed_when: false
      until: cr_result is succeeded
      retries: 60
      delay: 10
      with_items:
        - { name: calico-typha, type: deployment, namespace: calico-system }
        - { name: calico-kube-controllers, type: deployment, namespace: calico-system }
        - name: csi-node-driver
          type: daemonset
          selector: k8s-app=csi-node-driver
          namespace: calico-system
        - name: calico-node
          type: daemonset
          selector: k8s-app=calico-node
          namespace: calico-system
      loop_control:
        label: "{{ item.type }}/{{ item.name }}"

    # The Calico API server is an optional add-on for managing Calico policy via
    # kubectl (the projectcalico.org/v3 Kubernetes API). It is not required for
    # Calico CNI data plane operation and does not reconcile on K3s with recent
    # Calico releases, so it is treated as best-effort here.
    - name: Wait for the optional Calico API server (best effort)
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }} wait deployment/calico-apiserver
        --namespace=calico-apiserver --for=condition=Available --timeout=30s
      register: cr_apiserver
      changed_when: false
      until: cr_apiserver is succeeded
      retries: 30
      delay: 10
      ignore_errors: true

    - name: Verify Calico TigeraStatus reports Available
      ansible.builtin.command: >-
        {{ k3s_kubectl_binary | default('k3s kubectl') }}
        get tigerastatus {{ item }}
        -o jsonpath='{.status.conditions[?(@.type=="Available")].status}'
      register: tigera_status
      changed_when: false
      until: tigera_status.stdout | trim == 'True'
      retries: 30
      delay: 7
      failed_when: tigera_status.rc != 0 or (tigera_status.stdout | trim) != 'True'
      with_items:
        - calico
      loop_control:
        label: "tigerastatus/{{ item }}"

    - name: Patch Felix configuration for eBPF mode
      ansible.builtin.command:
        cmd: >
          {{ k3s_kubectl_binary | default('k3s kubectl') }} patch felixconfiguration default
          --type='merge'
          --patch='{"spec": {"bpfKubeProxyIptablesCleanupEnabled": false}}'
      register: patch_result
      changed_when: "'felixconfiguration.projectcalico.org/default patched' in patch_result.stdout"
      failed_when: "'Error' in patch_result.stderr"
      when: calico_ebpf