---
- name: Calico | Write Calico cni config
  template:
    src: "cni-calico.conflist.j2"
    dest: "/etc/cni/net.d/{% if calico_version is version('v3.3.0', '>=') %}calico.conflist.template{% else %}10-calico.conflist{% endif %}"
    owner: kube
  register: calico_conflist
  notify: reset_calico_cni

- name: Calico | Create calico certs directory
  file:
    dest: "{{ calico_cert_dir }}"
    state: directory
    mode: 0750
    owner: root
    group: root

- name: Calico | Link etcd certificates for calico-node
  file:
    src: "{{ etcd_cert_dir }}/{{ item.s }}"
    dest: "{{ calico_cert_dir }}/{{ item.d }}"
    state: hard
    force: yes
  with_items:
    - {s: "{{ kube_etcd_cacert_file }}", d: "ca_cert.crt"}
    - {s: "{{ kube_etcd_cert_file }}", d: "cert.crt"}
    - {s: "{{ kube_etcd_key_file }}", d: "key.pem"}

- name: Calico | Install calicoctl container script
  template:
    src: calicoctl-container.j2
    dest: "{{ bin_dir }}/calicoctl"
    mode: 0755
    owner: root
    group: root
  changed_when: false

- name: Calico | wait for etcd
  uri:
    url: "{{ etcd_access_addresses.split(',') | first }}/health"
    validate_certs: no
    client_cert: "{{ etcd_cert_dir }}/node-{{ inventory_hostname }}.pem"
    client_key: "{{ etcd_cert_dir }}/node-{{ inventory_hostname }}-key.pem"
  register: result
  until: result.status == 200 or result.status == 401
  retries: 10
  delay: 5
  run_once: true

- name: Calico | Check if calico network pool has already been configured
  shell: >
    {{ bin_dir }}/calicoctl get ippool | grep -w "{{ calico_pool_cidr | default(kube_pods_subnet) }}" | wc -l
  register: calico_conf
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  delegate_to: "{{ groups['kube-master'][0] }}"
  run_once: true
  changed_when: false

- name: Calico | Ensure that calico_pool_cidr is within kube_pods_subnet when defined
  assert:
    that: "[calico_pool_cidr] | ipaddr(kube_pods_subnet) | length == 1"
    msg: "{{ calico_pool_cidr }} is not within or equal to {{ kube_pods_subnet }}"
  delegate_to: localhost
  run_once: true
  when:
    - 'calico_conf.stdout == "0"'
    - calico_pool_cidr is defined

- name: Calico | Configure calico network pool (v3.0.0 <= version < v3.3.0)
  shell: >
    echo "
      { "kind": "IPPool",
        "apiVersion": "projectcalico.org/v3",
        "metadata": {
          "name": "{{ calico_pool_name }}",
        },
        "spec": {
          "cidr": "{{ calico_pool_cidr | default(kube_pods_subnet) }}",
          "ipipMode": "{{ ipip_mode }}",
          "natOutgoing": {{ nat_outgoing|default(false) and not peer_with_router|default(false) }} }} " | {{ bin_dir }}/calicoctl create -f -
  run_once: true
  delegate_to: "{{ groups['kube-master'][0] }}"
  when:
    - 'calico_conf.stdout == "0"'
    - calico_version is version("v3.0.0", ">=")
    - calico_version is version("v3.3.0", "<")

- name: Calico | Configure calico network pool (version >= v3.3.0)
  shell: >
    echo "
      { "kind": "IPPool",
        "apiVersion": "projectcalico.org/v3",
        "metadata": {
          "name": "{{ calico_pool_name }}",
        },
        "spec": {
          "blockSize": "{{ kube_network_node_prefix }}",
          "cidr": "{{ calico_pool_cidr | default(kube_pods_subnet) }}",
          "ipipMode": "{{ ipip_mode }}",
          "natOutgoing": {{ nat_outgoing|default(false) and not peer_with_router|default(false) }} }} " | {{ bin_dir }}/calicoctl create -f -
  run_once: true
  delegate_to: "{{ groups['kube-master'][0] }}"
  when:
    - 'calico_conf.stdout == "0"'
    - calico_version is version("v3.3.0", ">=")

- name: Calico | Configure calico network pool (legacy)
  shell: >
    echo '
      { "kind": "ipPool",
        "spec": {"disabled": false, "ipip": {"enabled": {{ ipip }}, "mode": "{{ ipip_mode|lower }}"},
                 "nat-outgoing": {{ nat_outgoing|default(false) and not peer_with_router|default(false) }}},
        "apiVersion": "v1",
        "metadata": {"cidr": "{{ calico_pool_cidr | default(kube_pods_subnet) }}"}
      }' | {{ bin_dir }}/calicoctl apply -f -
  environment:
    NO_DEFAULT_POOLS: true
  run_once: true
  delegate_to: "{{ groups['kube-master'][0] }}"
  when:
    - 'calico_conf.stdout == "0"'
    - calico_version is version("v3.0.0", "<")

- name: "Determine nodeToNodeMesh needed state"
  set_fact:
    nodeToNodeMeshEnabled: "false"
  when:
    - peer_with_router|default(false) or peer_with_calico_rr|default(false)
    - inventory_hostname in groups['k8s-cluster']
  run_once: yes

- name: Calico | Set global as_num
  shell: >
    echo '
    { "kind": "BGPConfiguration",
    "apiVersion": "projectcalico.org/v3",
    "metadata": {
        "name": "default",
    },
    "spec": {
        "logSeverityScreen": "Info",
        "nodeToNodeMeshEnabled": {{ nodeToNodeMeshEnabled|default('true') }} ,
        "asNumber": {{ global_as_num }} }} ' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  run_once: true
  delegate_to: "{{ groups['kube-master'][0] }}"
  when:
    - calico_version is version('v3.0.0', '>=')

- name: Calico | Set global as_num (legacy)
  command: "{{ bin_dir}}/calicoctl config set asNumber {{ global_as_num }}"
  run_once: true
  when:
    - calico_version is version('v3.0.0', '<')

- name: Calico | Disable node mesh (legacy)
  command: "{{ bin_dir }}/calicoctl config set nodeToNodeMesh off"
  run_once: yes
  when:
    - calico_version is version('v3.0.0', '<')
    - nodeToMeshEnabled|default(True)

- name: Calico | Configure node asNumber for per node peering
  shell: >
   echo '{
   "apiVersion": "projectcalico.org/v3",
   "kind": "Node",
   "metadata": {
      "name": "{{ inventory_hostname }}"
   },
   "spec": {
      "bgp": {
        "asNumber": "{{ local_as }}"
      },
      "orchRefs":[{"nodeName":"{{ inventory_hostname }}","orchestrator":"k8s"}]
   }}' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  when:
    - calico_version is version('v3.0.0', '>=')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']
    - local_as is defined
    - groups['calico-rr'] | default([]) | length == 0

- name: Calico | Configure node asNumber for per node peering (legacy)
  shell: >
   echo '{
   "apiVersion": "v1",
   "kind": "node",
   "metadata": {
      "name": "{{ inventory_hostname }}"
   },
   "spec": {
      "bgp": {
        "asNumber": "{{ local_as }}"
      },
      "orchRefs":[{"nodeName":"{{ inventory_hostname }}","orchestrator":"k8s"}]
   }}' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  when:
    - calico_version is version('v3.0.0', '<')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']
    - local_as is defined
    - groups['calico-rr'] | default([]) | length == 0

- name: Calico | Configure peering with router(s) at node scope
  shell: >
   echo '{
   "apiVersion": "projectcalico.org/v3",
   "kind": "BGPPeer",
   "metadata": {
      "name": "{{ inventory_hostname }}-{{ item.router_id }}"
   },
   "spec": {
      "asNumber": "{{ item.as }}",
      "node": "{{ inventory_hostname }}",
      "peerIP": "{{ item.router_id }}"
   }}' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items:
    - "{{ peers|selectattr('scope','undefined')|list|default([]) | union(peers|selectattr('scope','defined')|selectattr('scope','equalto', 'node')|list|default([])) }}"
  when:
    - calico_version is version('v3.0.0', '>=')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']

- name: Calico | Configure peering with router(s) at node scope (legacy)
  shell: >
   echo '{
   "kind": "bgpPeer",
   "spec": {"asNumber": "{{ item.as }}"},
   "apiVersion": "v1",
   "metadata": {"node": "{{ inventory_hostname }}", "scope": "node", "peerIP": "{{ item.router_id }}"}
   }'
   | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items: "{{ peers|selectattr('scope','undefined')|list|default([]) | union(peers|selectattr('scope','defined')|selectattr('scope','equalto', 'node')|list|default([])) }}"
  when:
    - calico_version | version_compare('v3.0.0', '<')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']

- name: Calico | Configure peering with router(s) at global scope
  shell: >
   echo '{
   "apiVersion": "projectcalico.org/v3",
   "kind": "BGPPeer",
   "metadata": {
      "name": "global-{{ item.router_id }}"
   },
   "spec": {
      "asNumber": "{{ item.as }}",
      "peerIP": "{{ item.router_id }}"
   }}' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items:
    - "{{ peers|selectattr('scope','defined')|selectattr('scope','equalto', 'global')|list|default([]) }}"
  run_once: true
  when:
    - calico_version | version_compare('v3.0.0', '>=')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']

- name: Calico | Configure peering with router(s) at global scope (legacy)
  shell: >
   echo '{
   "kind": "bgpPeer",
   "spec": {"asNumber": "{{ item.as }}"},
   "apiVersion": "v1",
   "metadata": {"scope": "global", "peerIP": "{{ item.router_id }}"}
   }'
   | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items: "{{ peers|selectattr('scope','defined')|selectattr('scope','equalto', 'global')|default([]) }}"
  run_once: true
  when:
    - calico_version is version('v3.0.0', '<')
    - peer_with_router|default(false)
    - inventory_hostname in groups['k8s-cluster']

- name: Calico | Configure peering with route reflectors
  shell: >
   echo '{
   "apiVersion": "projectcalico.org/v3",
   "kind": "BGPPeer",
   "metadata": {
      "name": "{{ inventory_hostname }}-{{ hostvars[item]["calico_rr_ip"]|default(hostvars[item]["ip"])|default(fallback_ips[item]) }}"
   },
   "spec": {
      "asNumber": "{{ local_as | default(global_as_num)}}",
      "node": "{{ inventory_hostname }}",
      "peerIP": "{{ hostvars[item]["calico_rr_ip"]|default(hostvars[item]["ip"])|default(fallback_ips[item]) }}"
   }}' | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items:
    - "{{ groups['calico-rr'] | default([]) }}"
  when:
    - calico_version is version('v3.0.0', '>=')
    - peer_with_calico_rr|default(false)
    - inventory_hostname in groups['k8s-cluster']
    - hostvars[item]['cluster_id'] == cluster_id

- name: Calico | Configure peering with route reflectors (legacy)
  shell: >
   echo '{
   "kind": "bgpPeer",
   "spec": {"asNumber": "{{ local_as | default(global_as_num)}}"},
   "apiVersion": "v1",
   "metadata": {"node": "{{ inventory_hostname }}",
     "scope": "node",
     "peerIP": "{{ hostvars[item]["calico_rr_ip"]|default(hostvars[item]["ip"])|default(fallback_ips[item]) }}"}
   }'
   | {{ bin_dir }}/calicoctl create --skip-exists -f -
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  with_items: "{{ groups['calico-rr'] | default([]) }}"
  when:
    - calico_version is version('v3.0.0', '<')
    - not calico_upgrade_enabled
    - peer_with_calico_rr|default(false)
    - hostvars[item]['cluster_id'] == cluster_id


- name: Calico | Create calico manifests
  template:
    src: "{{item.file}}.j2"
    dest: "{{kube_config_dir}}/{{item.file}}"
  with_items:
    - {name: calico-config, file: calico-config.yml, type: cm}
    - {name: calico-node, file: calico-node.yml, type: ds}
    - {name: calico, file: calico-node-sa.yml, type: sa}
    - {name: calico, file: calico-cr.yml, type: clusterrole}
    - {name: calico, file: calico-crb.yml, type: clusterrolebinding}
  register: calico_node_manifests
  when:
    - inventory_hostname in groups['kube-master']
    - rbac_enabled or item.type not in rbac_resources