mirror of
https://github.com/k3s-io/k3s-ansible.git
synced 2025-12-25 00:12:37 +01:00
103 lines
3.8 KiB
YAML
103 lines
3.8 KiB
YAML
---
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- name: Get k3s installed version
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ansible.builtin.command: k3s --version
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register: k3s_agent_version_output
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changed_when: false
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ignore_errors: true
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- name: Set k3s installed version
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when: not ansible_check_mode and k3s_agent_version_output.rc == 0
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ansible.builtin.set_fact:
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k3s_agent_installed_version: "{{ k3s_agent_version_output.stdout_lines[0].split(' ')[2] }}"
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# If airgapped, all K3s artifacts are already on the node.
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# We should be downloading and installing the newer version only if we are in one of the following cases :
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# - we couldn't get k3s installed version in the first task of this role
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# - the installed version of K3s on the nodes is older than the requested version in ansible vars
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- name: Download artifact only if needed
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when: not ansible_check_mode and airgap_dir is undefined and ( k3s_agent_version_output.rc != 0 or k3s_agent_installed_version is version(k3s_version, '<') )
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block:
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- name: Download K3s install script
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ansible.builtin.get_url:
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url: https://get.k3s.io/
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timeout: 120
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dest: /usr/local/bin/k3s-install.sh
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owner: root
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group: root
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mode: "0755"
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- name: Download K3s binary
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# For some reason, ansible-lint thinks using enviroment with command is an error
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# even though its valid https://ansible.readthedocs.io/projects/lint/rules/inline-env-var/#correct-code
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ansible.builtin.command: # noqa inline-env-var
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cmd: /usr/local/bin/k3s-install.sh
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# Ensures that extra_install_envs are combined with required env vars
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environment: >-
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{{ extra_install_envs | combine({
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"INSTALL_K3S_SKIP_START": "true",
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"INSTALL_K3S_SYSTEMD_DIR": systemd_dir,
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"INSTALL_K3S_VERSION": k3s_version,
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"INSTALL_K3S_EXEC": "agent"
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}) }}
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changed_when: true
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- name: Setup optional config file
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when: agent_config_yaml is defined
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block:
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- name: Make config directory
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ansible.builtin.file:
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path: "/etc/rancher/k3s"
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mode: "0755"
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state: directory
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- name: Copy config values
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# noqa var-naming[no-role-prefix]
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ansible.builtin.copy:
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content: "{{ agent_config_yaml }}"
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dest: "/etc/rancher/k3s/config.yaml"
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mode: "0644"
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register: _agent_config_result
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- name: Get the token from the first server
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# noqa var-naming[no-role-prefix]
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ansible.builtin.set_fact:
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token: "{{ hostvars[groups[server_group][0]].token }}"
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- name: Add service environment variables
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when: extra_service_envs is defined
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ansible.builtin.lineinfile:
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path: "{{ systemd_dir }}/k3s-agent.service.env"
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line: "{{ item }}"
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with_items: "{{ extra_service_envs }}"
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- name: Delete any existing token from the environment if different from the new one
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ansible.builtin.lineinfile:
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state: absent
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path: "{{ systemd_dir }}/k3s-agent.service.env"
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regexp: "^K3S_TOKEN=\\s*(?!{{ token }}\\s*$)"
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- name: Add the token for joining the cluster to the environment
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no_log: true # avoid logging the server token
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ansible.builtin.lineinfile:
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path: "{{ systemd_dir }}/k3s-agent.service.env"
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line: "{{ item }}"
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with_items:
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- "K3S_TOKEN={{ token }}"
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- name: Modify ExecStart in k3s-agent.service to include API endpoint and extra args
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register: k3s_agent_service
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ansible.builtin.replace:
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path: "{{ systemd_dir }}/k3s-agent.service"
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regexp: '^ExecStart=\/usr\/local\/bin\/k3s \\\n\s*agent.*'
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replace: |
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ExecStart=/usr/local/bin/k3s \
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agent \
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--server https://{{ api_endpoint }}:{{ api_port }} \
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{{ extra_agent_args }}
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- name: Enable and check K3s agent service
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ansible.builtin.systemd:
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name: k3s-agent
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daemon_reload: "{{ true if k3s_agent_service.changed else false }}"
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state: "{{ 'restarted' if (k3s_agent_service.changed or _agent_config_result.changed) else 'started' }}"
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enabled: true
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