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+---
+- name: create docker config directory
+ file:
+ name: /etc/docker
+ state: directory
+ mode: 0700
+
+- name: disable docker iptables and bridge
+ copy:
+ src: daemon.json
+ dest: /etc/docker/daemon.json
+
+- name: create network config directory
+ file:
+ name: /var/lib/kubenet/
+ state: directory
+
+- name: configure wireguard port
+ set_fact:
+ kubenet_wireguard_port: "{{ kubernetes.wireguard_port | default(51820) }}"
+
+- name: install ifupdown script
+ template:
+ src: ifupdown.sh.j2
+ dest: /var/lib/kubenet/ifupdown.sh
+ mode: 0755
+ # TODO: notify reload... this is unfortunately already to late because
+ # it must probably be brought down by the old version of the script
+
+- name: generate wireguard private key
+ shell: "umask 077; wg genkey > /var/lib/kubenet/kube-wg0.privatekey"
+ args:
+ creates: /var/lib/kubenet/kube-wg0.privatekey
+
+- name: fetch wireguard public key
+ shell: "wg pubkey < /var/lib/kubenet/kube-wg0.privatekey"
+ register: kubenet_wireguard_pubkey
+ changed_when: false
+ check_mode: no
+
+- name: install systemd service unit for network interfaces
+ copy:
+ src: kubenet-interfaces.service
+ dest: /etc/systemd/system/kubenet-interfaces.service
+ # TODO: notify: reload???
+
+- name: make sure kubenet interfaces service is started and enabled
+ systemd:
+ daemon_reload: yes
+ name: kubenet-interfaces.service
+ state: started
+ enabled: yes
+
+- name: get list of currently installed kubenet peers installed
+ find:
+ path: /etc/systemd/system/
+ pattern: "kubenet-peer-*.service"
+ register: kubenet_peers_installed
+
+- name: compute list of peers to be added
+ set_fact:
+ kubenet_peers_to_add: "{{ kubernetes_nodes | difference(inventory_hostname) }}"
+
+- name: compute list of peers to be removed
+ set_fact:
+ kubenet_peers_to_remove: "{{ kubenet_peers_installed.files | map(attribute='path') | map('replace', '/etc/systemd/system/kubenet-peer-', '') | map('replace', '.service', '') | difference(kubenet_peers_to_add) }}"
+
+- name: stop/disable systemd units for stale kubenet peers
+ with_items: "{{ kubenet_peers_to_remove }}"
+ systemd:
+ name: "kubenet-peer-{{ item }}.service"
+ state: stopped
+ enabled: no
+
+- name: remove systemd units for stale kubenet peers
+ with_items: "{{ kubenet_peers_to_remove }}"
+ file:
+ name: "/etc/systemd/system/kubenet-peer-{{ item }}.service"
+ state: absent
+
+- name: install systemd units for every kubenet peer
+ with_items: "{{ kubenet_peers_to_add }}"
+ template:
+ src: kubenet-peer.service.j2
+ dest: "/etc/systemd/system/kubenet-peer-{{ item }}.service"
+ # TODO: notify restart for peers that change...
+
+- name: make sure kubenet peer services are started and enabled
+ with_items: "{{ kubenet_peers_to_add }}"
+ systemd:
+ daemon_reload: yes
+ name: "kubenet-peer-{{ item }}.service"
+ state: started
+ enabled: yes
+
+- name: enable IPv4 forwarding
+ sysctl:
+ name: net.ipv4.ip_forward
+ value: 1
+ sysctl_set: yes
+ state: present
+ reload: yes
+
+- name: create cni config directory
+ file:
+ name: /etc/cni/net.d
+ state: directory
+
+- name: install cni config
+ template:
+ src: k8s.json.j2
+ dest: /etc/cni/net.d/k8s.json