80 lines
2.6 KiB
YAML
80 lines
2.6 KiB
YAML
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---
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- name: Install keepalived on 3-node cluster
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hosts: vm1,vm2,vm3
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become: true
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become_user: root
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serial: 1 # Ensure tasks are executed one host at a time
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vars_files:
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- vault.yml
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- vars.yml
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vars:
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tailscale_host: "{{ hostvars[inventory_hostname]['tailscale_host'] }}"
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tasks:
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# - name: Debug gathered facts
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# ansible.builtin.debug:
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# var: ansible_facts
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# - name: List all network interfaces and their IPs
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# ansible.builtin.debug:
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# msg: "{{ item.key }}: {{ item.value.ipv4 | map(attribute='address') | list }}"
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# with_dict: "{{ ansible_facts['network_interfaces'] }}"
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# when: ansible_facts['network_interfaces'] is defined
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- name: Detect interface with the desired IP range
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ansible.builtin.set_fact:
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keepalived_interface: "{{ item.key }}"
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with_dict: "{{ ansible_facts['network_interfaces'] }}"
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when: item.value.ipv4 is defined and item.value.ipv4 | selectattr('address', 'search', '^192\\.168\\.56\\.') | list | length > 0
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register: detected_interface
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- name: Set detected interface fact
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ansible.builtin.set_fact:
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keepalived_interface: "{{ detected_interface.ansible_facts.keepalived_interface }}"
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when: detected_interface is defined and detected_interface.ansible_facts is defined
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- name: Fallback to default interface if no match is found
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ansible.builtin.set_fact:
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keepalived_interface: "enp0s8"
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when: keepalived_interface is not defined
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- name: Fail if no interface is detected even after fallback
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ansible.builtin.fail:
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msg: "No interface with the desired IP range was detected, and fallback to default interface failed."
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when: keepalived_interface is not defined
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- name: Install keepalived
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ansible.builtin.apt:
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name: keepalived
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state: present
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- name: Configure keepalived on each node with decremented priority
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ansible.builtin.copy:
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dest: /etc/keepalived/keepalived.conf
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content: |
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vrrp_instance VI_1 {
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state MASTER
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interface {{ keepalived_interface }}
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virtual_router_id 51
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priority {{ 100 - (groups['vms'].index(inventory_hostname)) }}
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advert_int 1
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authentication {
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auth_type PASS
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auth_pass mysecret
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}
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virtual_ipaddress {
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192.168.56.250
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}
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}
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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 restart keepalived service
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ansible.builtin.systemd:
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name: keepalived
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enabled: true
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state: restarted
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