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---
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k3s_server_location: /var/lib/rancher/k3s
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---
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- name: Copy K3s service file
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register: k3s_service
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template:
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src: "k3s.service.j2"
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dest: "{{ systemd_dir }}/k3s.service"
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owner: root
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group: root
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mode: 0644
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- name: Enable and check K3s service
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systemd:
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name: k3s
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daemon_reload: yes
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state: restarted
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enabled: yes
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- name: Wait for node-token
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wait_for:
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path: "{{ k3s_server_location }}/server/node-token"
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- name: Register node-token file access mode
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stat:
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path: "{{ k3s_server_location }}/server/node-token"
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register: p
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- name: Change file access node-token
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file:
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path: "{{ k3s_server_location }}/server/node-token"
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mode: "g+rx,o+rx"
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- name: Read node-token from master
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slurp:
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path: "{{ k3s_server_location }}/server/node-token"
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register: node_token
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- name: Store Master node-token
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set_fact:
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token: "{{ node_token.content | b64decode | regex_replace('\n', '') }}"
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- name: Restore node-token file access
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file:
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path: "{{ k3s_server_location }}/server/node-token"
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mode: "{{ p.stat.mode }}"
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- name: Create directory .kube
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file:
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path: ~{{ ansible_user }}/.kube
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state: directory
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owner: "{{ ansible_user }}"
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mode: "u=rwx,g=rx,o="
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- name: Copy config file to user home directory
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copy:
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src: /etc/rancher/k3s/k3s.yaml
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dest: ~{{ ansible_user }}/.kube/config
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remote_src: yes
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owner: "{{ ansible_user }}"
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mode: "u=rw,g=,o="
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- name: Replace https://localhost:6443 by https://master-ip:6443
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command: >-
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k3s kubectl config set-cluster default
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--server=https://{{ master_ip }}:6443
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--kubeconfig ~{{ ansible_user }}/.kube/config
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changed_when: true
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- name: Create kubectl symlink
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file:
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src: /usr/local/bin/k3s
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dest: /usr/local/bin/kubectl
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state: link
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- name: Create crictl symlink
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file:
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src: /usr/local/bin/k3s
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dest: /usr/local/bin/crictl
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state: link
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[Unit]
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Description=Lightweight Kubernetes
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Documentation=https://k3s.io
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After=network-online.target
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[Service]
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Type=notify
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ExecStartPre=-/sbin/modprobe br_netfilter
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ExecStartPre=-/sbin/modprobe overlay
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ExecStart=/usr/local/bin/k3s server --data-dir {{ k3s_server_location }} {{ extra_server_args | default("") }}
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KillMode=process
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Delegate=yes
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# Having non-zero Limit*s causes performance problems due to accounting overhead
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# in the kernel. We recommend using cgroups to do container-local accounting.
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LimitNOFILE=1048576
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LimitNPROC=infinity
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LimitCORE=infinity
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TasksMax=infinity
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TimeoutStartSec=0
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Restart=always
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RestartSec=5s
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[Install]
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WantedBy=multi-user.target
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roles:
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- role: prereq
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- role: download
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#- hosts: serverctl_master_hosts
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# become: yes
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# roles:
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# - role: "./k3s/master"
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#
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- hosts: serverctl_master_hosts
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become: yes
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roles:
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- role: "./k3s/master"
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#- hosts: serverctl_node_hosts
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# become: yes
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# roles:
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