Files
home-network-k3s-impl/infra/ansible/roles/node_baseline/tasks/main.yml
T

84 lines
2.9 KiB
YAML

---
- name: Install baseline packages (guest agent, Longhorn/iscsi/nfs prereqs)
ansible.builtin.apt:
name: "{{ node_baseline_packages }}"
state: present
update_cache: true
cache_valid_time: 3600
- name: Persist kernel modules for k3s/Cilium/Longhorn
ansible.builtin.copy:
dest: /etc/modules-load.d/k3s-cilium-longhorn.conf
owner: root
group: root
mode: "0644"
content: "{{ node_baseline_kernel_modules | join('\n') }}\n"
- name: Load kernel modules now
community.general.modprobe:
name: "{{ item }}"
state: present
loop: "{{ node_baseline_kernel_modules }}"
- name: Install sysctl tuning for k3s/Cilium
ansible.builtin.copy:
dest: /etc/sysctl.d/99-k3s-cilium.conf
owner: root
group: root
mode: "0644"
content: |
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
net.ipv6.conf.all.forwarding = 1
fs.inotify.max_user_instances = 8192
fs.inotify.max_user_watches = 524288
notify: Reload sysctl
- name: Enable and start iscsid (Longhorn prerequisite)
ansible.builtin.systemd:
name: iscsid
enabled: true
state: started
# qemu-guest-agent binds to the virtio-serial channel /dev/virtio-ports/org.qemu.guest_agent.0,
# which Proxmox attaches only when the VM's `agent` option is enabled. Our tofu keeps agent
# DISABLED on purpose (enabling it makes `tofu apply` block up to 15m waiting for an agent the
# stock Debian cloud image hasn't installed yet — bpg gotcha). So we ENABLE the unit for the day
# a channel exists, but only START it when the channel is actually present — never fail the
# baseline over a missing hypervisor channel.
- name: Check whether the qemu guest-agent virtio channel is attached
ansible.builtin.stat:
path: /dev/virtio-ports/org.qemu.guest_agent.0
register: node_baseline_qga_channel
- name: Enable qemu-guest-agent (start only when its virtio channel is present)
ansible.builtin.systemd:
name: qemu-guest-agent
enabled: true
state: "{{ 'started' if node_baseline_qga_channel.stat.exists else 'stopped' }}"
- name: Create ext4 filesystem on the Longhorn data disk (data-safe; skips if present)
community.general.filesystem:
fstype: ext4
dev: "{{ node_baseline_longhorn_device }}"
opts: "-L {{ node_baseline_longhorn_fs_label }}"
- name: Mount the Longhorn data disk
ansible.posix.mount:
path: "{{ node_baseline_longhorn_mount }}"
src: "LABEL={{ node_baseline_longhorn_fs_label }}"
fstype: ext4
opts: "defaults,nofail,x-systemd.device-timeout=5s"
state: mounted
- name: Disable swap now
ansible.builtin.command: swapoff -a
changed_when: false
- name: Neutralize swap entries in fstab (kubelet requires swap off)
ansible.builtin.replace:
path: /etc/fstab
regexp: '^([^#].*\sswap\s.*)$'
replace: '# \1 # disabled for k3s/kubelet'