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Use systemd for disabling swap when it's used #10587

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merged 3 commits into from
Dec 7, 2023
Merged

Use systemd for disabling swap when it's used #10587

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58011fb
Mask systemd swap.target do disable swap
VannTen Nov 3, 2023
55b86a5
Unconditionally disable swap
VannTen Nov 3, 2023
25bbfbd
Don't explicitly disable swapOnZram
VannTen Nov 3, 2023
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28 changes: 4 additions & 24 deletions roles/kubernetes/preinstall/tasks/0010-swapoff.yml
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Original file line number Diff line number Diff line change
@@ -1,28 +1,8 @@
---
- name: Remove swapfile from /etc/fstab
ansible.posix.mount:
name: "{{ item }}"
fstype: swap
state: absent
loop:
- swap
- none

# kubelet fails even if ansible_swaptotal_mb = 0
- name: Check swap
command: /sbin/swapon -s
register: swapon
changed_when: no
- name: Mask swap.target (persist swapoff)
ansible.builtin.systemd_service:
name: swap.target
masked: true

- name: Disable swap
command: /sbin/swapoff -a
when:
- swapon.stdout
ignore_errors: "{{ ansible_check_mode }}" # noqa ignore-errors

- name: Disable swapOnZram for Fedora
command: touch /etc/systemd/zram-generator.conf
when:
- swapon.stdout
- ansible_distribution in ['Fedora']
ignore_errors: "{{ ansible_check_mode }}" # noqa ignore-errors