From 96a63c7cc92f0d184484a60aeff02c1ed19ed295 Mon Sep 17 00:00:00 2001
From: Marty Oehme <contact@martyoeh.me>
Date: Sun, 8 Jun 2025 13:04:04 +0200
Subject: [PATCH] feat: Add earlyoom userspace oom killer

---
 roles/base/tasks/main.yaml | 50 ++++++++++++++++++++++++++------------
 1 file changed, 35 insertions(+), 15 deletions(-)

diff --git a/roles/base/tasks/main.yaml b/roles/base/tasks/main.yaml
index 28f99d0..b0fbb4d 100644
--- a/roles/base/tasks/main.yaml
+++ b/roles/base/tasks/main.yaml
@@ -62,21 +62,21 @@
 - name: Install glibc
   tags: glibc
   block:
-  - name: Check if glibc locales exist
-    ansible.builtin.stat:
-      path: /etc/default/libc-locales
-    register: libc_locales_file
+    - name: Check if glibc locales exist
+      ansible.builtin.stat:
+        path: /etc/default/libc-locales
+      register: libc_locales_file
 
-  - name: Set correct glibc locales
-    ansible.builtin.lineinfile:
-      path: /etc/default/libc-locales
-      regexp: "^{{ item }}"
-      line: "{{ item }}"
-      state: "present"
-      create: true
-    loop: "{{ locales_enabled }}"
-    when: libc_locales_file.stat.exists
-    notify: glibc-locales-changed
+    - name: Set correct glibc locales
+      ansible.builtin.lineinfile:
+        path: /etc/default/libc-locales
+        regexp: "^{{ item }}"
+        line: "{{ item }}"
+        state: "present"
+        create: true
+      loop: "{{ locales_enabled }}"
+      when: libc_locales_file.stat.exists
+      notify: glibc-locales-changed
 
 - name: Set up chrony for NTP management
   community.general.xbps:
@@ -126,7 +126,7 @@
           - socklog-void
         state: "{{ desired_package_state | default('present') }}"
 
-    - name: Activate snooze cron services
+    - name: Activate syslog watch services
       ansible.builtin.file:
         force: "yes"
         src: "/etc/sv/{{ item }}"
@@ -141,3 +141,23 @@
         name: "{{ user_name | default('root') }}"
         groups: [socklog]
         append: true
+
+- name: Set up earlyoom as userspace oom killer
+  tags:
+    - oom
+    - earlyoom
+  block:
+    - name: Install earlyoom
+      community.general.xbps:
+        name:
+          - earlyoom
+        state: "{{ desired_package_state | default('present') }}"
+
+    - name: Activate earlyoom services
+      ansible.builtin.file:
+        force: "yes"
+        src: "/etc/sv/{{ item }}"
+        dest: "/etc/runit/runsvdir/default/{{ item }}"
+        state: link
+      loop:
+        - earlyoom